CN112311024A - To-be-charged equipment, wireless charging method and system - Google Patents

Abstract

The invention discloses a device to be charged, a wireless charging method and a wireless charging system. This equipment of waiting to charge includes: a battery; the wireless receiving circuit is used for receiving an electromagnetic signal transmitted by a wireless charging device and converting the electromagnetic signal into output current to charge the battery; the control module is used for periodically starting a wireless charging process according to preset cycle time when receiving a first indication signal sent by the wireless receiving circuit; and when receiving a second indication signal sent by the wireless receiving circuit, exiting the wireless charging process; in the wireless charging process, the control module is further configured to determine a current wireless charging mode according to the type of a power supply device electrically connected to the wireless charging device and the acquired information of the battery, which are fed back by the wireless charging device.

Description

To-be-charged equipment, wireless charging method and system

Technical Field

The invention relates to the technical field of wireless charging, in particular to a device to be charged, a wireless charging method and a wireless charging system.

Background

With the popularization of wireless charging technology, more and more electronic devices support wireless charging or wireless transmission functions. However, in the existing wireless charging technology, due to the unreasonable design of the control flow between the device to be charged and the wireless charging base, the charging modes between the power adapter and the wireless charging base and between the device to be charged and the wireless charging base cannot be quickly and reasonably adapted, so that the problems of low wireless charging speed, serious heating and the like of the device to be charged are caused.

The above information disclosed in this background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not constitute prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

In view of the above, the present invention provides a device to be charged, a wireless charging method and a wireless charging system.

Additional features and advantages of the invention will be set forth in the detailed description which follows, or may be learned by practice of the invention.

According to an aspect of the present invention, there is provided an apparatus to be charged, including: a battery; the wireless receiving circuit is used for receiving an electromagnetic signal transmitted by a wireless charging device and converting the electromagnetic signal into output current to charge the battery; the control module is electrically connected with the wireless receiving circuit and used for periodically starting a wireless charging process according to preset cycle time when receiving a first indication signal sent by the wireless receiving circuit; and when receiving a second indication signal sent by the wireless receiving circuit, exiting the wireless charging process; in the wireless charging process, the control module is further configured to determine a current wireless charging mode according to the type of a power supply device electrically connected to the wireless charging device and the acquired information of the battery, which are fed back by the wireless charging device; wherein the wireless charging mode comprises: the wireless charging device comprises a first wireless charging mode and a second wireless charging mode, wherein the output power of the wireless charging device in the first wireless charging mode is larger than the output power in the second wireless charging mode.

According to an embodiment of the present invention, in the wireless charging process, the control module is further configured to receive, by the wireless receiving circuit, feedback information sent by the wireless charging apparatus when receiving an information reading signal sent by the wireless receiving circuit, where the feedback information includes: the type of the power supply device.

According to an embodiment of the present invention, the control module is configured to determine that a current wireless charging mode is the first wireless charging mode when the type of the power supply device is the first type or the second type and the state of the battery satisfies a preset condition; when the device to be charged is wirelessly charged in the first charging mode, the power of the electric energy output by the first type or the second type power supply device is greater than or equal to the charging power required by the first wireless charging mode; wherein the preset condition comprises at least one of the following conditions: the temperature of the battery meets a preset temperature range, the voltage of the battery is lower than a preset voltage threshold, and the electric quantity of the battery is lower than a preset electric quantity threshold.

According to an embodiment of the present invention, the control module is further configured to determine that the current wireless charging mode is the second wireless charging mode when the type of the power supply device is a third type; the maximum output power of the third type of power supply providing device is less than the maximum output power of the first type of power supply providing device and the maximum output power of the second type of power supply providing device, and when the device to be charged is wirelessly charged in the second charging mode, the power of the electric energy output by the third type of power supply providing device is greater than or equal to the charging power required by the second wireless charging mode.

According to an embodiment of the present invention, the control module is further configured to determine whether a charging state of the battery meets a preset charging cutoff condition according to a current wireless charging mode and a temperature of the battery in the wireless charging process; and when the charging state of the battery meets the charging cut-off condition, cutting off the charging of the battery.

According to an embodiment of the present invention, the control module is further configured to determine whether a charging state of the battery that is stopped from being charged satisfies a preset charging recovery condition according to a current wireless charging mode and a temperature of the battery in the wireless charging process; and when the charging state of the battery meets the charging recovery condition, recovering the charging of the battery.

According to an embodiment of the present invention, in the wireless charging process, when receiving the information reading signal sent by the wireless receiving circuit, the control module is further configured to receive, by the wireless receiving circuit, the status information sent by the wireless charging apparatus; the status information includes at least one of the following information: whether the wireless charging device enters the wireless charging mode determined by the control module, overvoltage and overcurrent information of the wireless charging device and foreign matter detection information.

According to an embodiment of the present invention, the apparatus to be charged further includes: the voltage conversion module is respectively electrically connected with the wireless receiving circuit and the control module and is used for converting the output voltage of the wireless receiving circuit according to the control information sent by the control module; wherein the control information is determined according to the status information and the information of the battery transmitted by the wireless charging device.

According to an embodiment of the present invention, the apparatus to be charged further includes: and the load switching module is respectively electrically connected with the wireless receiving circuit, the control module and the voltage conversion module and is used for starting a reverse charging channel in the equipment to be charged when receiving a reverse charging enabling signal sent by the control module.

The control module is further used for sending a first enabling signal to the wireless receiving circuit to start the wireless receiving circuit after the device to be charged is started.

According to an embodiment of the present invention, the control module is further configured to determine whether firmware upgrade needs to be performed on the wireless receiving circuit according to a stored firmware version number after the device to be charged is started and before the wireless receiving circuit is started.

According to an embodiment of the present invention, the information of the battery includes at least one of the following information: temperature, charge, voltage and charging current of the battery.

According to another aspect of the present invention, there is provided a wireless charging method applied to a device to be charged, including: when a first indication signal sent by a wireless receiving circuit of the device to be charged is received, a wireless charging process is periodically started according to preset cycle time, wherein the wireless charging process comprises the following steps: determining a current wireless charging mode according to the type of a power supply device electrically connected with the wireless charging device and the acquired information of the battery, which are fed back by the wireless charging device; and when receiving a second indication signal sent by the wireless receiving circuit, exiting the wireless charging process; wherein the wireless charging mode comprises: the wireless charging device comprises a first wireless charging mode and a second wireless charging mode, wherein the output power of the wireless charging device in the first wireless charging mode is larger than the output power in the second wireless charging mode.

According to an embodiment of the present invention, the wireless charging process further includes: when receiving an information reading signal sent by the wireless receiving circuit, receiving feedback information sent by the wireless charging device through the wireless receiving circuit, wherein the feedback information comprises: the type of the power supply device.

According to an embodiment of the invention, the method further comprises: when the type of the power supply device is a first type or a second type and the state of the battery meets a preset condition, determining that a current wireless charging mode is the first wireless charging mode; when the device to be charged is wirelessly charged in the first charging mode, the power of the electric energy output by the first type or the second type power supply device is greater than or equal to the charging power required by the first wireless charging mode; wherein the preset condition comprises at least one of the following conditions: the temperature of the battery meets a preset temperature range, the voltage of the battery is lower than a preset voltage threshold, and the electric quantity of the battery is lower than a preset electric quantity threshold.

According to an embodiment of the invention, the method further comprises: when the type of the power supply device is a third type, determining that the current wireless charging mode is the second wireless charging mode; the maximum output power of the third type of power supply providing device is less than the maximum output power of the first type of power supply providing device and the maximum output power of the second type of power supply providing device, and when the device to be charged is wirelessly charged in the second charging mode, the power of the electric energy output by the third type of power supply providing device is greater than or equal to the charging power required by the second wireless charging mode.

According to an embodiment of the invention, the method further comprises: in the wireless charging process, determining whether the charging state of the battery meets a preset charging cut-off condition or not according to the current wireless charging mode and the temperature of the battery; and when the charging state of the battery meets the charging cut-off condition, cutting off the charging of the battery.

According to an embodiment of the invention, the method further comprises: in the wireless charging process, determining whether the charging state of the battery with cut-off charging meets a preset charging recovery condition or not according to the current wireless charging mode and the temperature of the battery; and when the charging state of the battery meets the charging recovery condition, recovering the charging of the battery.

According to an embodiment of the invention, the method further comprises: in the wireless charging process, when an information reading signal sent by the wireless receiving circuit is received, the state information sent by the wireless charging device is received through the wireless receiving circuit; the status information includes at least one of the following information: whether the wireless charging device enters the wireless charging mode determined by the control module, overvoltage and overcurrent information of the wireless charging device and foreign matter detection information.

According to an embodiment of the invention, the method further comprises: and sending control information to a voltage conversion module of the equipment to be charged according to the state information and the information of the battery sent by the wireless charging device so as to convert the output voltage of the wireless receiving circuit.

According to an embodiment of the invention, the method further comprises: when detecting that a user starts a reverse charging function, sending a reverse charging enabling signal to a load switching module in the equipment to be charged so as to start a reverse charging channel in the equipment to be charged; and carrying out reverse charging configuration on the wireless receiving circuit and a voltage conversion module in the equipment to be charged.

According to an embodiment of the invention, the method further comprises: after the device to be charged is started, the wireless receiving circuit is started by sending a first enabling signal to the wireless receiving circuit.

According to an embodiment of the present invention, after the device to be charged is turned on and before the wireless receiving circuit is started, the method further includes: and determining whether firmware upgrade needs to be carried out on the wireless receiving circuit or not according to the stored firmware version number.

According to an embodiment of the present invention, the information of the battery includes at least one of the following information: temperature, charge, voltage and charging current of the battery.

According to an aspect of the present invention, there is provided a wireless charging system including: any one of the above devices to be charged, wireless charging devices and power supply devices; the wireless charging device is used for converting input electric energy into an electromagnetic signal to be transmitted and wirelessly charging the equipment to be charged; the power supply device is used for providing the input electric energy for the wireless charging device.

According to the device to be charged provided by the embodiment of the invention, through the control process, the device to be charged can quickly enter the fast wireless charging mode (such as the first wireless charging mode), and the charging speed of the device to be charged is increased.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

Fig. 1 is a block diagram illustrating a device to be charged according to an exemplary embodiment.

Fig. 2 is a schematic diagram illustrating a wireless charging system according to an exemplary embodiment.

Fig. 3 is a block diagram illustrating another device to be charged according to an example embodiment.

Fig. 4 is a flow chart illustrating a wireless charging method according to an example embodiment.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the invention and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known structures, methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the invention.

In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or an integral part; can be electrically connected and also can be connected in communication; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, in the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the wireless charging process, a power supply device (e.g., an adapter) is generally connected to a wireless charging device (e.g., a wireless charging base), and the output power of the power supply device is wirelessly transmitted (e.g., electromagnetic signals or electromagnetic waves) to the device to be charged by the wireless charging device, so as to wirelessly charge the device to be charged.

According to different wireless charging principles, wireless charging methods are mainly classified into three methods, namely magnetic coupling (or electromagnetic induction), magnetic resonance and radio wave. Currently, the mainstream Wireless charging standards include QI standard, Power association (PMA) standard, and Wireless Power association (A4 WP). The QI standard and the PMA standard both adopt a magnetic coupling mode for wireless charging. The A4WP standard uses magnetic resonance for wireless charging.

Fig. 1 is a block diagram illustrating a device to be charged according to an exemplary embodiment.

The device to be charged 10 as shown in fig. 1 may be, for example, a terminal or a communication terminal, including but not limited to a terminal arranged to be connected via a wire line, such as via a Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connection, and/or another data connection/network and/or via, for example, a digital television network such as a digital video broadcasting-handheld (DVB-H) network, a satellite network, an amplitude modulation-frequency modulation (AM-FM) broadcast transmitter, and/or a wireless interface of another communication terminal. Communication terminals arranged to communicate over a wireless interface may be referred to as "wireless communication terminals", "wireless terminals", and/or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; personal Communication System (PCS) terminals that may combine a cellular radiotelephone with data processing, facsimile and data communication capabilities; personal Digital Assistants (PDAs) that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. In addition, the terminal may further include, but is not limited to, a rechargeable electronic device having a charging function, such as an electronic book reader, a smart wearable device, a mobile power source (e.g., a charger, a travel charger), an electronic cigarette, a wireless mouse, a wireless keyboard, a wireless headset, a bluetooth speaker, and the like.

Referring to fig. 1, the device to be charged 10 includes: awireless receiving circuit 102, acontrol module 104, avoltage conversion module 106 and abattery 108.

Fig. 2 is a schematic diagram illustrating a wireless charging system according to an exemplary embodiment. As shown in fig. 2, thewireless charging system 1 includes: apower supply device 11, awireless charging device 12 and a device to be charged 10. It should be noted that, to simplify the drawing, the device to be charged 10 in fig. 2 does not show a specific structure. As to the specific structure of the device to be charged 10, see fig. 1.

Referring to fig. 1 and 2 in conjunction, the device to be charged 10 is described in detail.

ThePower supply device 11 may be a Power adapter, a portable Power supply (Power Bank), or the like. Thewireless charging device 12 may be, for example, a wireless charging cradle.

After thepower supply device 11 is connected to thewireless charging device 12, the output current is transmitted to thewireless charging device 12.

Thewireless charging device 12 includes: a wireless transmitting circuit 121 and afirst control module 122.

The wireless transmitting circuit 121 is configured to convert the electric energy output by thepower supply device 11 into an electromagnetic signal (or an electromagnetic wave) for transmission, so as to wirelessly charge the device to be charged 10. For example, the wireless transmission circuit 121 may include: a wireless transmission drive circuit and a transmission coil (or transmission antenna). The wireless transmission driving circuit is used for converting the direct current output by thepower supply device 11 into high-frequency alternating current, and converting the high-frequency alternating current into an electromagnetic signal (or electromagnetic wave) through a transmitting coil or a transmitting antenna to be transmitted.

Thefirst Control module 122 can be implemented by a Micro Control Unit (MCU), for example. Thefirst control module 122 may be configured to wirelessly communicate with the device to be charged 10 during the wireless charging of the device to be charged 10 by thewireless charging apparatus 12. Specifically, thefirst control module 122 may wirelessly communicate with thecontrol module 104 in the device to be charged 10.

Further, thewireless charging device 12 may further include: a charginginterface 123. The wireless transmitting circuit 121 is further configured to receive the power output by thepower supply device 11 through the charginginterface 123, and generate an electromagnetic signal (or electromagnetic wave) according to the power output by thevoltage supply device 11.

The charginginterface 123 may be, for example, a USB 2.0 interface, a Micro USB interface, or a USB TYPE-C interface. In some embodiments, the charginginterface 123 may also be a lightning interface, or any other type of parallel or serial interface capable of being used for charging.

Thewireless charging device 12 can communicate with thepower supply device 11, for example, via the charginginterface 123, without providing an additional communication interface or other wireless communication module, which can simplify the implementation of thewireless charging device 12. If the charginginterface 123 is a USB interface, the wireless charging device 12 (or the wireless transmitting circuit 121) and thepower supply device 11 can communicate based on a data line (e.g., a D + line and/or a D-line) in the USB interface. As another example, the charginginterface 123 is a USB interface (e.g., a USB TYPE-C interface) supporting a Power Delivery (PD) communication protocol, and the wireless charging device 12 (or the wireless transmitting circuit 121) and thePower supply device 11 can communicate based on the PD communication protocol.

Further, thewireless charging device 12 may be communicatively connected to thepower supply device 11 by another communication method other than the charginginterface 123. For example, thewireless charging device 12 may wirelessly communicate with thepower supply device 11, such as Near Field Communication (NFC).

Thewireless receiving circuit 102 in the device to be charged 10 is configured to receive the electromagnetic signal (or electromagnetic wave) transmitted by the wireless transmitting circuit 121 and convert the electromagnetic signal (or electromagnetic wave) into the direct current output by thewireless receiving circuit 102. For example, thewireless receiving circuit 102 may include: a receiving coil or a receiving antenna, and a shaping circuit such as a rectifying circuit and/or a filter circuit connected to the receiving coil or the receiving antenna. Thewireless receiving circuit 102 converts an electromagnetic signal (or an electromagnetic wave) transmitted by the wireless transmitting circuit 121 into an alternating current by a receiving coil or a receiving antenna, and rectifies and/or filters the alternating current by a shaping circuit, thereby converting the alternating current into a stable direct current to charge thebattery 108.

It should be noted that the embodiment of the present invention does not specifically limit the specific form of the shaping circuit and the form of the output voltage and the output current of thewireless receiving circuit 102 obtained after shaping by the shaping circuit.

When the output voltage of thewireless receiving circuit 102 cannot satisfy the requirement of the charging voltage expected by thebattery 108 and/or the output current of thewireless receiving circuit 102 cannot satisfy the requirement of the charging current expected by thebattery 108, the output voltage of thewireless receiving circuit 102 may be converted by thevoltage converting module 106 disposed on the first charging channel 110 (e.g., a conducting wire) to obtain the charging voltage and/or the charging current expected by thebattery 108. For example, the output voltage and the output current of thewireless receiving circuit 102 are input into thevoltage conversion module 106 through thefirst charging channel 110; after thevoltage conversion module 106 converts the input voltage, the output voltage and current are applied to two ends of thebattery 108 through thefirst charging channel 110, so as to meet the requirement of thebattery 108 for expected charging voltage and/or charging current.

Battery 108 may include a single cell or multiple cells. When thebattery 108 includes multiple cells, the multiple cells may be connected in series. Therefore, the charging voltage which can be borne by thebattery 108 is the sum of the charging voltages which can be borne by the plurality of battery cores, the charging speed can be increased, and the charging heat emission can be reduced.

For example, taking the device to be charged 10 as a mobile phone as an example, when thebattery 108 of the device to be charged 10 includes a single cell, the voltage of the internal single cell is generally between 3.0V and 4.45V. And when thebattery 108 of the device to be charged 10 includes two cells connected in series, the total voltage of the two cells connected in series is 6.0V to 8.9V. Therefore, compared with a single battery cell, when a plurality of battery cells are connected in series, the output voltage of thewireless receiving circuit 102 can be increased. Compared with a single battery cell, the charging speed is equivalent, and the charging current required by multiple battery cells is about 1/N (N is the number of the battery cells connected in series in the device to be charged 10) of the charging current required by the single battery cell. In other words, on the premise of ensuring the same charging speed (the same charging power), the scheme of multiple cell segments can reduce the magnitude of the charging current, thereby reducing the heat productivity of the device to be charged 10 in the charging process. On the other hand, compared with the single-cell scheme, the charging voltage can be increased by adopting the multi-cell series scheme under the condition that the charging current is kept the same, so that the charging speed is increased.

Thecontrol module 104 may be implemented by, for example, a separate MCU, or may also be implemented by an Application Processor (AP) inside the device to be charged 13. Thecontrol module 104 is used to communicate with afirst control module 122 in thewireless charging device 12.

Thecontrol module 104 communicates with thewireless charging device 12 in a wireless manner, and the present invention does not limit the communication manner and the communication sequence between thewireless charging device 12 and the device to be charged 10 (control module 104). For example, the radio communication may be unidirectional radio communication or bidirectional radio communication. May be a communication initiated by the device to be charged 10 or may be a communication initiated by thewireless charging apparatus 12. In the wireless communication process, the device to be charged 10 may couple information to be transmitted to the receiving coil of thewireless receiving circuit 102, so as to transmit the information to the transmitting coil of the wireless transmitting circuit 121, and then the wireless transmitting circuit 121 transmits the decoupled information to thefirst control module 122. Conversely, in the two-way communication, thewireless charging apparatus 12 may couple the information to be transmitted to the transmitting coil of the wireless transmitting circuit 121, to be transmitted to the receiving coil of thewireless receiving circuit 102 of thedevice 10 to be charged, and to be decoupled by the receiving coil of thewireless receiving circuit 102 of thedevice 10 to be charged.

Alternatively, the device to be charged 10 may also communicate with thewireless charging device 12 through at least one of bluetooth, WiFi, mobile cellular network communication (e.g., 2G, 3G, 4G, or 5G), wireless communication (e.g., ieee 802.11, 802.15(WPANs), 802.16(WiMAX), 802.20, etc.), short-range wireless communication based on a high-frequency antenna (e.g., 60GHz), optical communication (e.g., infrared communication), ultrasonic communication, ultra-wideband (UMB) communication, and other communication methods. It can be understood that, when the communication is performed by the above-mentioned communication method, the device to be charged 10 and thewireless charging device 12 further include corresponding communication modules, such as a bluetooth communication module, a WiFi communication module, a 2G/3G/4G/5G mobile communication module, a high-frequency antenna, and an optical communication module. At least one of an ultrasonic communication module, an ultra-wideband communication module, and the like. It should be understood that the standards that may be employed for wireless communication as described above include past and existing standards, as well as future versions and standards that employ such standards without departing from the scope of this disclosure. By performing communication by the above-described wireless communication method, the reliability of communication can be improved, thereby improving charging safety. Compared with the method of coupling the feedback information to the receiving coil of thewireless receiving circuit 102 for communication through signal modulation in the related art (for example, the Qi standard), the reliability of communication can be improved, and voltage ripples caused by signal coupling communication can be avoided from affecting the voltage processing process of thevoltage conversion module 106 of the device to be charged 10. In addition, for the voltage ripple when the wireless receiving coil outputs, if the ripple is not effectively processed, the wireless charging safety problem may be caused, and certain potential safety hazard exists. By the above wireless communication method, the voltage ripple can be eliminated, so that a circuit for processing the voltage ripple can be omitted, the complexity of the charging circuit of the device to be charged 10 is reduced, the charging efficiency is improved, the circuit setting space is saved, and the cost is reduced.

Fig. 3 is a block diagram illustrating another device to be charged according to an example embodiment. As shown in fig. 3, thewireless receiving circuit 102 may be implemented as a transmitting/receiving chip, thecontrol module 104 may be an Application Processor (AP) in the device to be charged, and thevoltage converting module 106 may be implemented as a charging chip, specifically, a charge pump (charge pump).

Thecontrol module 104 and thewireless receiving circuit 102 communicate with each other through a plurality of pins. These pins may include: a pin for transmitting a clock signal (e.g.,pin 1 in fig. 3), a pin for transmitting data (e.g., pin 2 in fig. 3), and a pin for transmitting a signal (e.g., pins 3, 4, and 5 in fig. 3). Thecontrol module 104 and thevoltage conversion module 106 are connected via a pin (e.g., pin 6 in fig. 3) for transmitting a clock signal and a pin (e.g., pin 7 in fig. 3) for transmitting data.

How thecontrol module 104 in the device to be charged 10 performs wireless charging flow control will be described below with reference to fig. 1 to 3.

After the device to be charged 10 is turned on, thecontrol module 104 starts thewireless receiving circuit 102 by sending a first enable signal (for example, an enable signal sent through the pin 5 shown in fig. 3) to thewireless receiving circuit 102. When receiving a first indication signal (for example, a signal sent by thewireless receiving circuit 102 through the pin 4 shown in fig. 3 and set to a high level) sent by thewireless receiving circuit 102, thecontrol module 104 periodically starts the wireless charging process according to a preset cycle time (for example, the preset cycle time may be 500ms, but the invention is not limited thereto). When receiving a second indication signal (e.g., a signal sent by thewireless receiving circuit 102 through the pin 4 shown in fig. 3 and set to a low level) sent by thewireless receiving circuit 102, thecontrol module 104 exits the wireless charging process.

In the wireless charging process, thecontrol module 104 is configured to determine a current wireless charging mode according to the type of thepower supply apparatus 11 electrically connected to thewireless charging apparatus 12 and fed back by thewireless charging apparatus 12 and the acquired information of thebattery 108.

The wireless charging mode may include, for example, a first wireless charging mode and a second wireless charging mode. The first wireless charging mode may be a fast wireless charging mode. The second wireless charging mode may be referred to as a normal wireless charging mode. In the first wireless charging mode, the charging speed of the device to be charged 10 is faster than that in the second wireless charging mode. In other words, the time taken for the device to be charged 10 operating in the first wireless charging mode to fully charge the battery of the same capacity is shorter than the time taken for the device to be charged 10 operating in the second wireless charging mode.

The normal wireless charging mode may refer to a wireless charging mode in which the transmission power of thewireless charging device 12 is small (typically less than 15W, and the common transmission power is 5W or 10W). For example, a conventional wireless charging mode based on QI standard, PMA standard or A4WP standard. It usually takes several hours to fully charge a larger battery (e.g., 3000 ma-hour capacity battery) in the normal wireless charging mode.

In the fast wireless charging mode, the transmission power of thewireless charging device 12 is relatively large (usually greater than or equal to 15W, such as 15-25W). Compared with the normal wireless charging mode, the charging time required by thewireless charging device 12 to fully charge the battery with the same capacity in the fast wireless charging mode can be significantly shortened and the charging speed is faster.

In the wireless charging process, thecontrol module 104 is further configured to receive feedback information sent by thewireless charging device 12 through communication with the wireless charging device 12 (for example, communication with thewireless charging device 12 through thewireless receiving circuit 102 as described above) when receiving an information reading signal sent by the wireless receiving circuit 102 (for example, an interrupt signal sent by thewireless receiving circuit 102 through the pin 3 shown in fig. 3). The feedback information may include, for example: the type ofpower supply device 11.

The type of thepower supply device 11 is divided according to the maximum power that it can output, and may include: a first type, a second type, and a third type. Wherein the maximum output power of the first type ofpower supply device 11 is the highest, and may be 50W (10V/5A), for example; the maximum output power of the second type ofpower supply device 11 is less than, for example, 20W (5V/4A); the maximum output power of the third type of power supply apparatus is the lowest, and may be, for example, 5W or 10W.

The three types ofpower supply devices 11 may also include two charging modes when supplying power to the wireless charging device 12: a first charging mode and a second charging mode. The first charging mode may be a fast charging mode, and the second charging mode may be a normal charging mode.

The normal charging mode refers to thepower supply device 11 outputting a relatively small current value (typically less than 2.5A) or outputting a relatively small power (typically less than 15W, such as 5W/10W) to thewireless charging device 12. Compared with the normal charging mode, the output power of thepower supply device 11 in the fast charging mode is higher, such as 20W, 50W, etc. as described above.

The first and second types ofpower supply devices 11 may support the first and second charging modes, respectively, while the third type ofpower supply device 11 supports only the second charging mode, i.e., the normal charging mode.

When determining the current wireless charging mode, thecontrol module 104 needs to know the type of thepower supply device 11, and determines the charging mode supported by thepower supply device 11 according to the type of thepower supply device 11, so as to determine the current wireless charging mode with reference to the charging mode supported by thepower supply device 11. The wireless charging mode adopted between thewireless charging device 12 and the device to be charged 10 needs to be matched with the charging mode adopted between thewireless charging device 12 and thepower supply device 11, that is, when thepower supply device 11 works in the first charging mode, the power of the output electric energy is greater than or equal to the charging power required by the first wireless charging mode; when thepower supply device 11 operates in the second charging mode, the power of the output electric energy is greater than or equal to the power required by the second wireless charging mode. If the device to be charged 10 requests the above-described first wireless charging mode, the device to be charged 10 first needs to determine that thepower supply apparatus 11 is a first-type or second-type power supply apparatus that can support the first charging mode.

The information on the battery may include, for example, at least one of the following information: temperature, charge, voltage, and charging current of thebattery 108.

The amount of electricity, voltage, and current of thebattery 108 may be detected by a detection device built in thebattery 108, for example, the amount of electricity of thebattery 108 may be measured by an electricity meter. In addition, the voltage and the charging current of thebattery 108 may also be the charging voltage and the charging current detected by the detection module 112 shown in fig. 1.

Referring to fig. 1, the detection circuit 112 is used to detect the voltage value and/or the current value on thefirst charging channel 110. The voltage value and/or the current value on thefirst charging channel 110 may refer to a voltage value and/or a current value between thevoltage conversion module 106 and thebattery 108, that is, an output voltage and/or an output current of thevoltage conversion module 106, which is directly applied to thebattery 108 to charge thebattery 108. Alternatively, the voltage value and/or the current value on thefirst charging channel 110 may also refer to a voltage value and/or a current value between thewireless receiving circuit 102 and thevoltage conversion module 106, that is, an output voltage value and/or a current value of thewireless receiving circuit 102.

In some embodiments, the detection circuit 112 may include: a voltage detection circuit and a current detection circuit. The voltage detection circuit is used to sample the voltage on thefirst charging channel 110, and the voltage detection circuit may sample the output voltage of thewireless receiving circuit 102 by, for example, serial voltage division. The current detection circuit is used to sample the current on thefirst charging channel 110, and the current detection circuit may sample the current on thefirst charging channel 110 through a current sensing resistor and a current sensing meter, for example.

According to the type of thepower supply apparatus 11 and the information of thebattery 108, thecontrol module 104 may determine the current wireless charging mode in the wireless charging process. When the type of the power supply device is a first type or a second type and the state of the battery meets a preset condition, determining that the current wireless charging mode is a first wireless charging mode. The preset condition comprises at least one of the following conditions: the temperature of thebattery 108 satisfies a preset temperature range (which may be, for example, room temperature, i.e., between 17 ℃ and 42 ℃), the voltage of thebattery 108 is lower than a preset voltage threshold (which may be set to, for example, 4.35V), and the charge of thebattery 108 is lower than a preset charge threshold (which may be set to, for example, 88% of the capacity of the battery 108). Preferably, when the type of thepower supply apparatus 11 is the first type or the second type and the above-mentioned conditions of the temperature of thebattery 108, the voltage of thebattery 108 and the power amount of thebattery 108 are all satisfied, it is determined that the current wireless charging mode is the first wireless charging mode.

Further, when the type of thepower supply apparatus 11 is the third type, it is determined that the current wireless charging mode is the second wireless charging mode.

Thecontrol module 104 may also be configured to determine whether the current charging state of thebattery 108 meets a preset charging cutoff condition according to the current wireless charging mode and the temperature of thebattery 108 in the periodic wireless charging process; when the state of charge of thebattery 108 satisfies the charge cutoff condition, the charge to thebattery 108 is cut off. In different temperature and wireless charging modes, different charging cut-off conditions may be set, and the charging cut-off conditions may include, for example, that the voltage of thebattery 108 is greater than the charging cut-off voltage and/or that the charging current of thebattery 108 is less than the charging cut-off current.

In addition, thecontrol module 104 is further configured to determine whether the current charging state of thebattery 108 that is cut off from being charged meets a preset charging recovery condition according to the current wireless charging mode and the temperature of thebattery 108 in the wireless charging process of the cycle; when it is determined that the state of charge of thebattery 108 satisfies the charge recovery condition, the charge of thebattery 108 is recovered. The charge recovery condition may include, for example: when the voltage of thebattery 108 is lower than the charge cutoff voltage by a preset threshold value, it is determined that it satisfies the charge recovery condition.

Thecontrol module 104 may also receive status information from thewireless charging device 12, such as information about whether thewireless charging device 12 enters the wireless charging mode requested by the apparatus to be charged 10, whether thewireless charging device 12 is over-voltage or over-current, whether Foreign Object (FOD) is detected, and the like.

Based on the status information and information about the battery (e.g., power, voltage, charging current, etc.), thecontrol module 104 may also determine control information for controlling thevoltage conversion module 106 to perform voltage conversion. For example, as described above, when the output voltage of thewireless receiving circuit 102 cannot satisfy the requirement of the charging voltage expected by thebattery 108 and/or the output current of thewireless receiving circuit 102 cannot satisfy the requirement of the charging current expected by thebattery 108, thevoltage converting module 106 may be controlled to convert to obtain the charging voltage and/or the charging current expected by thebattery 108. The expected charging voltage and/or charging current of thebattery 108 may vary from wireless charging mode to wireless charging mode.

Further, as shown in fig. 3, the device to be charged 10 may further include: aload switching module 114 and a charginginterface 116.

The charginginterface 116 may be, for example, a USB 2.0 interface, a Micro USB interface, or a USB type-C interface. In some embodiments, the charginginterface 123 may also be a lightning interface, or any other type of parallel or serial interface capable of being used for charging.

The device to be charged 10 may also perform wired charging through the charginginterface 116 based on the switching control of theload switching module 114, that is, the device to be charged is directly connected to a power supply device (such as a power adapter) through the charginginterface 116, and directly receives the electric energy provided by the power supply device.

In addition, theload switching module 114 is further configured to perform a reverse charging configuration on thewireless receiving circuit 102 and thevoltage converting module 106 when receiving a reverse charging enable signal (e.g., an enable signal sent through the pin 8 shown in fig. 3) sent by thecontrol module 104, so as to open a reverse charging channel inside the device to be charged 10.

For example, the reverse charging function may be manually turned on by a user, so that the device to be charged 10 serves as an electric energy provider to wirelessly charge other wirelessly chargeable devices to be charged. When the reverse charging function needs to be activated, thecontrol module 104 configures the relevant registers of thewireless receiving circuit 102 and thevoltage converting module 106, and enables the registers, so that the reverse charging function is activated. Further, theload switching module 114 is notified to perform internal channel switching, so that the voltage of thebattery 108 is transmitted to a channel of the wireless receiving circuit 102 (used as a wireless transmitting circuit in reverse charging) to perform reverse charging. At this time, the function of thevoltage conversion module 106 includes a voltage/current adjustment function to control the power output to thewireless receiving circuit 102. It will be appreciated by those skilled in the art that thedevice 10 to be charged must be in a non-charging state when it is being charged in reverse.

In addition, thecontrol module 104 is further configured to determine whether firmware upgrade needs to be performed on thewireless receiving circuit 102 according to the stored firmware version number after the device to be charged 10 is turned on and before thewireless receiving circuit 102 is started. If the firmware of thewireless receiving circuit 102 needs to be updated, thecontrol module 104 executes the relevant firmware updating procedure to write the new firmware version into thewireless receiving circuit 102 through the pin 2.

According to the device to be charged provided by the embodiment of the invention, through the control process, the device to be charged can quickly enter the fast wireless charging mode (such as the first wireless charging mode), and the charging speed of the device to be charged is increased.

It should be clearly understood that the present disclosure describes how to make and use particular examples, but the principles of the present disclosure are not limited to any details of these examples. Rather, these principles can be applied to many other embodiments based on the teachings of the present disclosure.

It is noted that the block diagrams shown in the above figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

The following are embodiments of the method of the present invention, which may be applied to the above-described embodiments of the apparatus. For details which are not disclosed in the method embodiments of the present invention, reference is made to the apparatus embodiments of the present invention.

Fig. 4 is a flow chart illustrating a wireless charging method according to an example embodiment.

Thewireless charging method 20 shown in fig. 4, as may be applied to the above-mentioned device to be charged 10, may be specifically executed by thecontrol module 104 in the device to be charged 10.

Referring to fig. 4, thewireless charging method 20 includes:

in step S202, when a first indication signal sent by the wireless receiving circuit is received, a wireless charging process is periodically started according to a preset cycle time, where the wireless charging process includes: and determining the current wireless charging mode according to the type of the power supply device electrically connected with the wireless charging device and the acquired information of the battery, which are fed back by the wireless charging device.

Wherein, wireless charging mode includes: the wireless charging device comprises a first wireless charging mode and a second wireless charging mode, wherein the output power of the wireless charging device in the first wireless charging mode is larger than that in the second wireless charging mode.

In some embodiments, the information of the battery includes at least one of the following information: temperature, charge, voltage and charging current of the battery.

In some embodiments, themethod 20 may further include: when receiving an information reading signal sent by a wireless receiving circuit, receiving feedback information sent by the wireless charging device through the wireless receiving circuit, wherein the feedback information comprises: the type of power supply device.

Wherein the types of the power supply device include: the power supply device comprises a first type, a second type and a third type, wherein the maximum output power of the power supply device of the first type is larger than that of the power supply device of the second type, and the maximum output power of the power supply device of the second type is larger than that of the power supply device of the third type;

the charging modes of the first type power supply device and the second type power supply device comprise: the power supply device comprises a first charging mode and a second charging mode, wherein the output power of the first type of power supply device and the output power of the second type of power supply device in the first charging mode are larger than the output power of the first type of power supply device and the output power of the second type of power supply device in the second charging mode; the charging mode of the third type of power supply device includes: a second charging mode. When the power supply device works in a first charging mode, the power of the electric energy output by the power supply device is greater than or equal to the charging power required by the first wireless charging mode; when the power supply device works in the second charging mode, the power of the output electric energy is larger than or equal to the power required by the second wireless charging mode.

In some embodiments, themethod 20 may further include: in the wireless charging process, determining whether the charging state of the battery meets a preset charging cut-off condition or not according to the current wireless charging mode and the temperature of the battery; when the state of charge of the battery satisfies a charge cutoff condition, the charge of the battery is cut off.

In some embodiments, themethod 20 may further include: in the wireless charging process, determining whether the charging state of the battery with cut-off charging meets a preset charging recovery condition or not according to the current wireless charging mode and the temperature of the battery; when the state of charge of the battery satisfies the charge recovery condition, the charge of the battery is recovered.

In some embodiments, themethod 20 may further include: in the wireless charging process, when an information reading signal sent by a wireless receiving circuit is received, state information sent by a wireless charging device is received through the wireless receiving circuit; the status information includes at least one of the following information: whether the wireless charging device enters a wireless charging mode determined by the control module, overvoltage and overcurrent information of the wireless charging device and foreign matter detection information.

In some embodiments, themethod 20 may further include: and sending control information to a voltage conversion module of the equipment to be charged according to the state information and the information of the battery sent by the wireless charging device so as to convert the output voltage of the wireless receiving circuit.

In step S204, when the second indication signal sent by the wireless receiving circuit is received, the wireless charging process is exited.

In some embodiments, themethod 20 may further include: when detecting that a user starts reverse charging, sending a reverse charging enabling signal to a load switching module in the equipment to be charged so as to start a reverse charging channel in the equipment to be charged; and carrying out reverse charging configuration on the voltage conversion module in the wireless receiving circuit and the equipment to be charged.

In some embodiments, prior to step S202, themethod 20 may further include:

in step S206, after the device to be charged is turned on, the wireless receiving circuit is started by sending a first enable signal to the wireless receiving circuit in the device to be charged, and the wireless receiving circuit is configured to receive an electromagnetic signal transmitted by the wireless charging apparatus and convert the electromagnetic signal into an output current to charge a battery in the device to be charged.

In some embodiments, after the device to be charged is turned on and before the wireless receiving circuit is started, themethod 20 may further include: and determining whether the firmware upgrade needs to be carried out on the wireless receiving circuit or not according to the stored firmware version number. And if the firmware of the wireless receiving circuit needs to be upgraded, writing a new firmware version into the wireless receiving circuit.

According to the wireless charging method provided by the embodiment of the invention, through controlling the process, the device to be charged can quickly enter a fast wireless charging mode (such as the first wireless charging mode), and the charging speed of the device to be charged is increased.

Those skilled in the art will appreciate that all or part of the steps implementing the above embodiments are implemented as computer programs executed by a processor. Which when executed by a processor performs the functions defined by the method as provided by the invention. The program may be stored in a computer readable storage medium, which may be a read-only memory, a magnetic or optical disk, or the like.

Furthermore, it should be noted that the above-mentioned figures are only schematic illustrations of the processes involved in the method according to exemplary embodiments of the invention, and are not intended to be limiting. It will be readily understood that the processes shown in the above figures are not intended to indicate or limit the chronological order of the processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, e.g., in multiple modules.

Exemplary embodiments of the present invention are specifically illustrated and described above. It is to be understood that the invention is not limited to the precise construction, arrangements, or instrumentalities described herein; on the contrary, the invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (25)

Translated fromChinese

1.一种待充电设备，其特征在于，包括：1. A device to be charged, characterized in that, comprising:电池；Battery;无线接收电路，用于接收无线充电装置发射的电磁信号，并将所述电磁信号转换成输出电流，以为所述电池充电；以及a wireless receiving circuit for receiving an electromagnetic signal transmitted by a wireless charging device and converting the electromagnetic signal into an output current for charging the battery; and控制模块，与所述无线接收电路电连接，用于当接收到所述无线接收电路发送的第一指示信号时，根据预设周期时间，周期地启动无线充电流程；a control module, electrically connected to the wireless receiving circuit, for periodically starting the wireless charging process according to a preset cycle time when receiving the first indication signal sent by the wireless receiving circuit;及当接收到所述无线接收电路发送的第二指示信号时，退出所述无线充电流程；and when receiving the second indication signal sent by the wireless receiving circuit, exit the wireless charging process;在所述无线充电流程中，所述控制模块还用于根据所述无线充电装置反馈的、与所述无线充电装置电连接的电源提供装置的类型及获取到的所述电池的信息，确定当前的无线充电模式；In the wireless charging process, the control module is further configured to determine the current state according to the type of the power supply device that is fed back by the wireless charging device and that is electrically connected to the wireless charging device and the acquired information of the battery. wireless charging mode;其中，所述无线充电模式包括：第一无线充电模式和第二无线充电模式，所述无线充电装置在所述第一无线充电模式下的输出功率大于在所述第二无线充电模式下的输出功率。Wherein, the wireless charging mode includes: a first wireless charging mode and a second wireless charging mode, and the output power of the wireless charging device in the first wireless charging mode is greater than the output power in the second wireless charging mode power.2.根据权利要求1所述的待充电设备，其特征在于，在所述无线充电流程中，所述控制模块还用于当接收到所述无线接收电路发送的信息读取信号时，通过所述无线接收电路接收所述无线充电装置发送的反馈信息，所述反馈信息包括：所述电源提供装置的类型。2 . The device to be charged according to claim 1 , wherein, in the wireless charging process, the control module is further configured to, when receiving the information reading signal sent by the wireless receiving circuit, pass the The wireless receiving circuit receives feedback information sent by the wireless charging device, where the feedback information includes: the type of the power supply device.3.根据权利要求2所述的待充电设备，其特征在于，所述控制模块用于当所述电源提供装置的类型为第一类型或第二类型且所述电池的状态满足预设条件时，确定当前的无线充电模式为所述第一无线充电模式；3 . The device to be charged according to claim 2 , wherein the control module is used when the type of the power supply device is the first type or the second type and the state of the battery satisfies a preset condition. 4 . , determining that the current wireless charging mode is the first wireless charging mode;其中，所述第一类型的电源提供装置的最大输出功率大于所述第二类型的电源提供装置的最大输出功率，且当所述待充电设备在所述第一充电模式进行无线充电时，所述第一类型或所述第二类型的电源提供装置输出的电能的功率大于或等于所述第一无线充电模式需要的充电功率；Wherein, the maximum output power of the first type of power supply device is greater than the maximum output power of the second type of power supply device, and when the device to be charged is wirelessly charged in the first charging mode, the The power of the electrical energy output by the first type or the second type of power supply device is greater than or equal to the charging power required by the first wireless charging mode;其中，所述预设条件包括如下条件中的至少其中之一：所述电池的温度满足预设温度范围，所述电池的电压低于预设的电压阈值，所述电池的电量低于预设的电量阈值。Wherein, the preset condition includes at least one of the following conditions: the temperature of the battery meets a preset temperature range, the voltage of the battery is lower than a preset voltage threshold, and the power of the battery is lower than a preset temperature power threshold.4.根据权利要求3所述的待充电设备，其特征在于，所述控制模块还用于当所述电源提供装置的类型为第三类型时，确定当前的无线充电模式为所述第二无线充电模式；4 . The device to be charged according to claim 3 , wherein the control module is further configured to determine that the current wireless charging mode is the second wireless charging mode when the type of the power supply device is the third type. 5 . charging mode;其中，所述第三类型的电源提供装置的最大输出功率小于所述第一类型的电源提供装置与所述第二类型的电源提供装置的最大输出功率，且当所述待充电设备在所述第二充电模式进行无线充电时，所述第三类型的电源提供装置输出的电能的功率大于或等于所述第二无线充电模式需要的充电功率。Wherein, the maximum output power of the third type of power supply device is smaller than the maximum output power of the first type of power supply device and the second type of power supply device, and when the device to be charged is in the When wireless charging is performed in the second charging mode, the power of the electrical energy output by the third-type power supply device is greater than or equal to the charging power required by the second wireless charging mode.5.根据权利要求1所述的待充电设备，其特征在于，所述控制模块还用于在所述无线充电流程中，根据当前的无线充电模式及所述电池的温度，确定所述电池的充电状态是否满足预设的充电截止条件；当所述电池的充电状态满足所述充电截止条件时，截止对所述电池的充电。5 . The device to be charged according to claim 1 , wherein the control module is further configured to, in the wireless charging process, determine the temperature of the battery according to the current wireless charging mode and the temperature of the battery. 6 . Whether the charging state satisfies the preset charging cut-off condition; when the charging state of the battery satisfies the charging cut-off condition, the charging of the battery is cut off.6.根据权利要求5所述的待充电设备，其特征在于，所述控制模块还用于在所述无线充电流程中，根据当前的无线充电模式及所述电池的温度，确定被截止充电的所述电池的充电状态是否满足预设的充电恢复条件；当所述电池的充电状态满足所述充电恢复条件时，恢复对所述电池的充电。6 . The device to be charged according to claim 5 , wherein the control module is further configured to, in the wireless charging process, determine the charging-off device according to the current wireless charging mode and the temperature of the battery. 7 . Whether the state of charge of the battery satisfies the preset charge recovery condition; when the state of charge of the battery satisfies the charge recovery condition, the charging of the battery is resumed.7.根据权利要求1所述的待充电设备，其特征在于，所述控制模块还用于在所述无线充电流程中，当接收到所述无线接收电路发送的信息读取信号时，通过所述无线接收电路接收所述无线充电装置发送的状态信息；所述状态信息包括下述信息中的至少一种：所述无线充电装置是否已进入所述控制模块确定的所述无线充电模式、所述无线充电装置的过压过流信息、异物检测信息。7 . The device to be charged according to claim 1 , wherein the control module is further configured to, in the wireless charging process, receive an information reading signal sent by the wireless receiving circuit through the The wireless receiving circuit receives the status information sent by the wireless charging device; the status information includes at least one of the following information: whether the wireless charging device has entered the wireless charging mode determined by the control module, whether the Overvoltage and overcurrent information and foreign object detection information of the wireless charging device.8.根据权利要求7所述的待充电设备，其特征在于，还包括：电压转换模块，分别与所述无线接收电路及所述控制模块电连接，用于根据所述控制模块发送的控制信息，对所述无线接收电路的输出电压进行转换；其中所述控制信息根据所述无线充电装置发送的所述状态信息及所述电池的信息确定。8 . The device to be charged according to claim 7 , further comprising: a voltage conversion module, which is electrically connected to the wireless receiving circuit and the control module, respectively, and is used for controlling information sent by the control module according to the control information sent by the control module. 9 . , converting the output voltage of the wireless receiving circuit; wherein the control information is determined according to the state information sent by the wireless charging device and the information of the battery.9.根据权利要求8所述的待充电设备，其特征在于，还包括：负载切换模块，分别与所述无线接收电路、所述控制模块及所述电压转换模块电连接，用于当接收到所述控制模块发送的反向充电使能信号时，在所述待充电设备内部开启反向充电通道。9 . The device to be charged according to claim 8 , further comprising: a load switching module, which is electrically connected to the wireless receiving circuit, the control module and the voltage conversion module, respectively, and is used for receiving the When a reverse charging enable signal is sent by the control module, a reverse charging channel is opened inside the device to be charged.10.根据权利要求1所述的待充电设备，其特征在于，所述控制模块还用于在所述待充电设备开机后，通过向所述无线接收电路发送第一使能信号，启动所述无线接收电路。10 . The device to be charged according to claim 1 , wherein the control module is further configured to start the device by sending a first enable signal to the wireless receiving circuit after the device to be charged is turned on. 11 . wireless receiver circuit.11.根据权利要求1所述的待充电设备，其特征在于，所述控制模块还用于在所述待充电设备开机后及启动所述无线接收电路之前，通过存储的固件版本号，确定是否需要对所述无线接收电路进行固件升级。11 . The device to be charged according to claim 1 , wherein the control module is further configured to determine whether to use the stored firmware version number after the device to be charged is turned on and before the wireless receiving circuit is activated. 12 . The firmware of the wireless receiving circuit needs to be upgraded.12.根据权利要求1-11任一项所述的待充电设备，其特征在于，所述电池的信息包括下述信息中的至少一种：所述电池的温度、电量、电压及充电电流。12 . The device to be charged according to claim 1 , wherein the information of the battery includes at least one of the following information: temperature, power, voltage and charging current of the battery. 13 .13.一种无线充电方法，应用于待充电设备，其特征在于，包括：13. A wireless charging method, applied to a device to be charged, characterized in that comprising:当接收到所述待充电设备的无线接收电路发送的第一指示信号时，根据预设周期时间，周期地启动无线充电流程，所述无线充电流程包括：根据无线充电装置反馈的、与所述无线充电装置电连接的电源提供装置的类型及获取到的所述电池的信息，确定当前的无线充电模式；以及When receiving the first indication signal sent by the wireless receiving circuit of the device to be charged, periodically start the wireless charging process according to the preset cycle time, and the wireless charging process includes: according to the feedback from the wireless charging device, and the The type of the power supply device to which the wireless charging device is electrically connected and the acquired information of the battery to determine the current wireless charging mode; and当接收到所述无线接收电路发送的第二指示信号时，退出所述无线充电流程；When receiving the second indication signal sent by the wireless receiving circuit, exit the wireless charging process;其中，所述无线充电模式包括：第一无线充电模式和第二无线充电模式，所述无线充电装置在所述第一无线充电模式下的输出功率大于在所述第二无线充电模式下的输出功率。Wherein, the wireless charging mode includes: a first wireless charging mode and a second wireless charging mode, and the output power of the wireless charging device in the first wireless charging mode is greater than the output power in the second wireless charging mode power.14.根据权利要求13所述的方法，其特征在于，所述无线充电流程还包括：当接收到所述无线接收电路发送的信息读取信号时，通过所述无线接收电路接收所述无线充电装置发送的反馈信息，所述反馈信息包括：所述电源提供装置的类型。14 . The method according to claim 13 , wherein the wireless charging process further comprises: when receiving an information reading signal sent by the wireless receiving circuit, receiving the wireless charging through the wireless receiving circuit. 15 . Feedback information sent by the device, where the feedback information includes: the type of the power supply device.15.根据权利要求14所述的方法，其特征在于，还包括：当所述电源提供装置的类型为第一类型或第二类型且所述电池的状态满足预设条件时，确定当前的无线充电模式为所述第一无线充电模式；15. The method according to claim 14, further comprising: when the type of the power supply device is the first type or the second type and the state of the battery satisfies a preset condition, determining the current wireless the charging mode is the first wireless charging mode;其中，所述第一类型的电源提供装置的最大输出功率大于所述第二类型的电源提供装置的最大输出功率，且当所述待充电设备在所述第一充电模式进行无线充电时，所述第一类型或所述第二类型的电源提供装置输出的电能的功率大于或等于所述第一无线充电模式需要的充电功率；Wherein, the maximum output power of the first type of power supply device is greater than the maximum output power of the second type of power supply device, and when the device to be charged is wirelessly charged in the first charging mode, the The power of the electrical energy output by the first type or the second type of power supply device is greater than or equal to the charging power required by the first wireless charging mode;其中，所述预设条件包括如下条件中的至少其中之一：所述电池的温度满足预设温度范围，所述电池的电压低于预设的电压阈值，所述电池的电量低于预设的电量阈值。The preset condition includes at least one of the following conditions: the temperature of the battery meets a preset temperature range, the voltage of the battery is lower than a preset voltage threshold, and the power of the battery is lower than a preset temperature power threshold.16.根据权利要求15所述的方法，其特征在于，还包括：当所述电源提供装置的类型为第三类型时，确定当前的无线充电模式为所述第二无线充电模式；16. The method according to claim 15, further comprising: when the type of the power supply device is the third type, determining that the current wireless charging mode is the second wireless charging mode;其中，所述第三类型的电源提供装置的最大输出功率小于所述第一类型的电源提供装置与所述第二类型的电源提供装置的最大输出功率，且当所述待充电设备在所述第二充电模式进行无线充电时，所述第三类型的电源提供装置输出的电能的功率大于或等于所述第二无线充电模式需要的充电功率。Wherein, the maximum output power of the third type of power supply device is smaller than the maximum output power of the first type of power supply device and the second type of power supply device, and when the device to be charged is in the When wireless charging is performed in the second charging mode, the power of the electrical energy output by the third-type power supply device is greater than or equal to the charging power required by the second wireless charging mode.17.根据权利要求13所述的方法，其特征在于，还包括：在所述无线充电流程中，根据当前的无线充电模式及所述电池的温度，确定所述电池的充电状态是否满足预设的充电截止条件；当所述电池的充电状态满足所述充电截止条件时，截止对所述电池的充电。17 . The method according to claim 13 , further comprising: in the wireless charging process, determining whether the charging state of the battery satisfies a preset condition according to the current wireless charging mode and the temperature of the battery. 18 . When the state of charge of the battery satisfies the charging cut-off condition, the charging of the battery is cut off.18.根据权利要求17所述的方法，其特征在于，还包括：在所述无线充电流程中，根据当前的无线充电模式及所述电池的温度，确定被截止充电的所述电池的充电状态是否满足预设的充电恢复条件；当所述电池的充电状态满足所述充电恢复条件时，恢复对所述电池的充电。18 . The method according to claim 17 , further comprising: in the wireless charging process, determining the charging state of the battery whose charging is turned off according to the current wireless charging mode and the temperature of the battery. 19 . Whether the preset charging recovery condition is satisfied; when the charging state of the battery satisfies the charging recovery condition, the charging of the battery is resumed.19.根据权利要求13所述的方法，其特征在于，还包括：在所述无线充电流程中，当接收到所述无线接收电路发送的信息读取信号时，通过所述无线接收电路接收所述无线充电装置发送的状态信息；所述状态信息包括下述信息中的至少一种：所述无线充电装置是否已进入所述控制模块确定的所述无线充电模式、所述无线充电装置的过压过流信息、异物检测信息。19 . The method according to claim 13 , further comprising: in the wireless charging process, when receiving the information reading signal sent by the wireless receiving circuit, receiving the information through the wireless receiving circuit. 20 . status information sent by the wireless charging device; the status information includes at least one of the following information: whether the wireless charging device has entered the wireless charging mode determined by the control module, whether the wireless charging device has entered the wireless charging mode Overcurrent information, foreign object detection information.20.根据权利要求19所述的方法，其特征在于，还包括：根据所述无线充电装置发送的所述状态信息及所述电池的信息，向所述待充电设备的电压转换模块发送控制信息，以对所述无线接收电路的输出电压进行转换。20 . The method according to claim 19 , further comprising: sending control information to a voltage conversion module of the device to be charged according to the state information and the battery information sent by the wireless charging device. 21 . , to convert the output voltage of the wireless receiving circuit.21.根据权利要求13所述的方法，其特征在于，还包括：当检测到用户启动反向充电功能时，向所述待充电设备中的负载切换模块发送反向充电使能信号，以在所述待充电设备内部开启反向充电通道；以及对所述无线接收电路及所述待充电设备中的电压转换模块进行反向充电配置。21. The method according to claim 13, further comprising: sending a reverse charging enable signal to the load switching module in the device to be charged when it is detected that the user has activated the reverse charging function to A reverse charging channel is opened inside the device to be charged; and a reverse charging configuration is performed on the wireless receiving circuit and the voltage conversion module in the device to be charged.22.根据权利要求13所述的方法，其特征在于，还包括：在所述待充电设备开机后，通过向所述无线接收电路发送第一使能信号，启动所述无线接收电路。22 . The method according to claim 13 , further comprising: after the device to be charged is turned on, by sending a first enable signal to the wireless receiving circuit to start the wireless receiving circuit. 23 .23.根据权利要求13所述的方法，其特征在于，在所述待充电设备开机后及启动所述无线接收电路之前，所述方法还包括：通过存储的固件版本号，确定是否需要对所述无线接收电路进行固件升级。23. The method according to claim 13, wherein after the device to be charged is turned on and before the wireless receiving circuit is started, the method further comprises: determining whether to The wireless receiving circuit performs firmware upgrade.24.根据权利要求13-23任一项所述的方法，其特征在于，所述电池的信息包括下述信息中的至少一种：所述电池的温度、电量、电压及充电电流。24. The method according to any one of claims 13-23, wherein the information of the battery comprises at least one of the following information: temperature, power, voltage and charging current of the battery.25.一种无线充电系统，其特征在于，包括：根据权利要求1-12任一项所述的待充电设备、无线充电装置及电源提供装置；其中，所述无线充电装置用于将输入的电能转换成电磁信号进行发射，为所述待充电设备进行无线充电；所述电源提供装置用于为所述无线充电装置提供所述输入的电能。25. A wireless charging system, comprising: the device to be charged, the wireless charging device and the power supply device according to any one of claims 1-12; wherein the wireless charging device is used to The electrical energy is converted into electromagnetic signals for transmission, and wirelessly charges the device to be charged; the power supply device is used for providing the input electrical energy to the wireless charging device.

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