Charging method, charging device and related deviceTechnical Field
The present invention relates to the field of mobile communications, and in particular, to a charging method, a charging device, and a related device.
Background
At present, a mobile power supply (charger) is an indispensable partner of a terminal, and the principle of charging the terminal by the mobile power supply is as follows: the built-in electric core that charges of portable power source (be used for storing the electric energy), a charging circuit (be used for charging to itself) and a boost circuit (be used for sending for the terminal after stepping up the electric energy in the electric core that charges), when portable power source supplied power for the terminal, step up certain voltage with electric core voltage through the inside boost circuit of portable power source, and transmit the electric energy for the terminal through portable power source USB mouth, after the terminal received voltage, because this voltage value is higher than the charging voltage of self battery, need step down this voltage earlier, just can normally charge to self battery. That is to say, the conventional mobile power supply charges the terminal, and goes through two stages of first boosting (mobile power supply side) and then reducing (terminal side), and the two voltage transformation processes can cause the loss of electric energy.
Disclosure of Invention
The invention provides a charging method, a charging device and a related device, which are used for completely or at least partially solving the problem of high electric energy loss when a mobile power supply charges a terminal in the prior art.
In one aspect, the present invention provides a charging method, including:
acquiring voltage values of a mobile power supply and a terminal battery charged by the mobile power supply in real time;
and determining a charging voltage value according to the voltage value of the terminal battery, and enabling the mobile power supply to charge the terminal battery under the charging voltage value.
Preferably, the step of determining the charging voltage value according to the voltage value of the terminal battery specifically includes:
and adjusting the charging voltage value according to the voltage value of the terminal battery, so that the charging voltage value is higher than the voltage value of the terminal battery by a preset threshold value.
Preferably, the preset threshold amount is 0.05-0.15V.
In another aspect, the present invention further provides a mobile power supply, including: the mobile power supply comprises a mobile power supply cell, a boost-buck circuit and a voltage detection circuit, wherein one end of the boost-buck circuit is connected with the mobile power supply cell, the other end of the boost-buck circuit is connected with the charged terminal battery, and the voltage detection circuit is respectively connected with two ends of the boost-buck circuit;
the voltage detection circuit is used for acquiring the voltage values of the mobile power supply and the terminal battery in real time and sending the voltage values of the mobile power supply and the terminal battery to the terminal;
and the voltage increasing and decreasing circuit is used for adjusting the voltage of the mobile power supply according to the charging voltage value determined by the terminal and charging the terminal battery under the adjusted voltage.
In yet another aspect, the present invention provides a terminal, including:
the receiving unit is used for receiving the voltage values of the mobile power supply and the battery of the terminal sent by the mobile power supply;
and the first processing unit is used for determining a charging voltage value according to the voltage value of the battery of the terminal and sending the charging voltage value to the mobile power supply.
Preferably, the first processing unit is specifically configured to adjust the charging voltage value according to a voltage value of a battery of the terminal itself, make the charging voltage value higher than the voltage value of the terminal battery by a preset threshold amount, and send the charging voltage value to the mobile power supply.
Preferably, the preset threshold amount is 0.05-0.15V.
In another aspect, the present invention further provides a charging device, including:
the device comprises an acquisition unit, a storage unit and a control unit, wherein the acquisition unit is used for acquiring the voltage values of a mobile power supply and a terminal battery which is charged by applying the mobile power supply in real time;
and the second processing unit is used for determining a charging voltage value according to the voltage value of the terminal battery and enabling the mobile power supply to charge the terminal battery under the charging voltage value.
Preferably, the second processing unit is specifically configured to adjust the charging voltage value according to a voltage value of a battery of the terminal itself, so that the charging voltage value is higher than the voltage value of the terminal battery by a preset threshold amount, and the mobile power supply charges the terminal battery under the charging voltage value.
Preferably, the preset threshold amount is 0.05-0.15V.
The invention has the following beneficial effects:
according to the invention, the voltage values of the mobile power supply and the terminal battery charged by the mobile power supply are firstly obtained, the charging voltage value for charging the terminal is determined according to the voltage value of the terminal battery, and the terminal battery is charged by the charging voltage value, namely, the charging can be completed only by once voltage adjustment, the steps of firstly boosting the voltage of the mobile power supply side and then reducing the voltage of the terminal side in the existing charging process are omitted, the electric energy is saved, and the problem of high electric energy loss when the mobile power supply charges the terminal in the prior art is effectively solved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a flow chart of a charging method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a mobile power supply according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of a terminal in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a charging device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another charging device in the embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to solve the problem that the power consumption of a mobile power supply is high when the mobile power supply charges a terminal in the prior art, the invention provides a charging method, a charging device and a related device. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Method embodiment
The present invention provides a charging method, see fig. 1, comprising:
s101, acquiring a voltage value of a mobile power supply and a terminal battery charged by the mobile power supply in real time;
and S102, determining a charging voltage value according to the voltage value of the terminal battery, and enabling the mobile power supply to charge the terminal battery under the charging voltage value.
According to the invention, the terminal can be charged only by performing voltage adjustment once according to the voltage value acquired by the mobile power supply or the charging device, so that the steps of firstly boosting the voltage of the mobile power supply side and then reducing the voltage of the terminal side in the existing charging process are omitted, the electric energy is saved, and the problem of electric energy loss when the mobile power supply charges the terminal in the prior art is effectively solved.
Step S101 specifically includes: the voltage detection circuit on the mobile power supply is used for acquiring the voltage values of the mobile power supply and a terminal battery charged by the mobile power supply, or the acquisition unit in the charging device is used for acquiring the voltage values of the mobile power supply and the terminal battery charged by the mobile power supply, the charging device is a middleware for connecting the mobile power supply and the terminal, and the voltage of the mobile power supply is adjusted to be suitable for charging the terminal by the charging device.
Step S102 specifically includes: and adjusting an output voltage value (namely a charging voltage value for charging the terminal battery) output to the terminal battery according to the voltage value of the terminal battery, so that the output voltage value is higher than the voltage value of the terminal battery by a preset threshold amount, and outputting the electric quantity to the terminal battery under the output voltage.
In a specific implementation, the first processing unit on the terminal (the first processing unit is specifically disposed in the CPU of the terminal, or the CPU of the terminal may complete a corresponding function of the first processing unit) or the second processing unit on the charging device may be used to adjust the output voltage value output to the terminal battery according to the voltage value of the terminal battery, so that the output voltage value is higher than the voltage value of the terminal battery by a preset threshold amount, and output the electric quantity to the terminal battery under the output voltage.
In reality, in order to ensure that the mobile power supply can charge the terminal, the voltage value output by the interface of the mobile power supply must be kept higher than the voltage value of the terminal battery, and in order to ensure charging safety, the difference between the voltage output by the mobile power supply and the voltage of the terminal battery cannot be too large, for example, when the voltage of the terminal battery is lower than the voltage of a cell of the mobile power supply, such as the voltage of the terminal battery is 3.4V, and the voltage of a cell of the mobile power supply is 4.2V, if the voltage of the cell of the mobile power supply is directly added to the terminal battery, and the difference between the two voltages is 0.8V, the charging current can reach 2A, a power loss of 1.6W can be generated and cannot be accepted, therefore, the voltage difference between the two voltages is ensured to be within a range of a preset threshold amount, generally controlled to be about 0.05-0.15V, and for this case, the mobile power supply needs to reduce the voltage of the cell of the mobile, such as 3.5V; similarly, when the terminal battery voltage is higher than the mobile power supply cell voltage, the terminal battery needs to be charged by raising the voltage value of the mobile power supply cell to a level higher than the terminal battery voltage by about 0.1V through the step-up/down circuit. When the voltage of the mobile power supply is higher than the voltage of the terminal battery, the voltage of the mobile power supply is reduced to a value higher than the voltage of the terminal battery by a preset threshold amount, and the mobile power supply outputs electric quantity according to the reduced output voltage; and when the voltage of the mobile power supply is lower than the voltage of the terminal battery, the voltage of the mobile power supply is increased to be higher than the voltage of the terminal battery by a preset threshold amount, and the mobile power supply outputs electric quantity according to the boosted output voltage.
The method of the embodiment of the invention also comprises the following steps:
the electric quantity of the mobile power supply and the terminal battery is monitored in real time (the voltage values of the mobile power supply and the terminal battery are monitored immediately), and when the electric quantity of the mobile power supply is smaller than an undervoltage threshold (namely, the electric quantity of the mobile power supply is too low to charge the terminal battery), or the electric quantity of the terminal battery is larger than a full charge threshold (namely, the terminal battery is fully charged and does not need to be recharged), the charging is triggered to be finished. The values of the under-voltage threshold and the full threshold can be set according to requirements.
For example, when the terminal battery voltage reaches a full threshold (e.g., 4.2V), the charging activity is stopped, and when the voltage of the mobile power supply cell reaches an under-voltage threshold (e.g., 3.3V), the charging activity is also stopped.
Embodiments of the Mobile Power supply
An embodiment of the present invention provides a mobile power supply, and referring to fig. 2, the mobile power supply includes: the mobile power supply comprises a mobile power supply cell, a boost-buck circuit and a voltage detection circuit, wherein one end of the boost-buck circuit is connected with the mobile power supply cell, the other end of the boost-buck circuit is connected with the charged terminal battery, and the voltage detection circuit is respectively connected with two ends of the boost-buck circuit;
the voltage detection circuit is used for acquiring the voltage values of the mobile power supply and the terminal battery in real time and sending the voltage values of the mobile power supply and the terminal battery to the terminal;
and the voltage increasing and decreasing circuit is used for adjusting the voltage of the mobile power supply according to the charging voltage value determined by the terminal and charging the terminal battery under the adjusted voltage.
According to the embodiment of the invention, the voltage values of the mobile power supply and the charged terminal battery are obtained through the mobile power supply, and the terminal can be charged by performing voltage adjustment once according to the charging voltage value determined by the terminal, so that the steps of firstly boosting the voltage of the mobile power supply side and then reducing the voltage of the terminal side in the existing charging process are omitted, the electric energy is saved, and the problem of electric energy loss when the mobile power supply charges the terminal in the prior art is effectively solved.
During specific implementation, two ends of the voltage detection circuit are respectively connected with the mobile power supply and the terminal battery, the voltage detection circuit is used for acquiring the voltage values of the mobile power supply and the charged terminal battery in real time and sending the voltage values of the mobile power supply and the charged terminal battery to the CPU of the terminal, the CPU of the terminal determines the charging voltage value according to the voltage values of the mobile power supply and sends the charging voltage value to the voltage increasing/decreasing circuit of the mobile power supply, and finally the voltage of the mobile power supply is adjusted through the voltage increasing/decreasing circuit and the terminal battery is charged under the adjusted voltage.
The details of the mobile power source embodiment can be understood by referring to relevant parts of other embodiments, and are not described herein.
Terminal embodiment
An embodiment of the present invention provides a terminal, and referring to fig. 3, the terminal includes:
the receiving unit is used for receiving the voltage values of the mobile power supply and the battery of the terminal sent by the mobile power supply;
and the first processing unit is used for determining a charging voltage value according to the voltage value of the battery of the terminal and sending the charging voltage value to the mobile power supply.
The terminal determines the charging voltage value according to the voltage values of the mobile power supply or the terminal and the mobile power supply acquired by the charging device, and the mobile power supply charges the terminal at the charging voltage value, namely, the terminal can charge the battery of the terminal only by once voltage adjustment, so that the steps of firstly boosting the voltage of the mobile power supply side and then reducing the voltage of the terminal side in the conventional charging process are omitted, the electric energy is saved, and the problem of electric energy loss when the mobile power supply charges the terminal in the prior art is effectively solved.
The first processing unit in the embodiment of the present invention is specifically configured to adjust the charging voltage value according to the voltage value of the mobile power supply, make the charging voltage value higher than the voltage value of the terminal battery by a preset threshold amount, and send the charging voltage value to the mobile power supply.
The preset threshold amount in the embodiment of the invention is 0.05-0.15V.
The details of the terminal embodiment can be understood by referring to the relevant parts of other embodiments, and are not described herein.
Charging device embodiment
An embodiment of the present invention provides a charging device, and referring to fig. 4, the charging device includes:
the device comprises an acquisition unit, a storage unit and a control unit, wherein the acquisition unit is used for acquiring the voltage values of a mobile power supply and a terminal battery which is charged by applying the mobile power supply in real time;
and the second processing unit is used for determining a charging voltage value according to the voltage value and enabling the mobile power supply to charge the terminal battery under the charging voltage value.
The terminal device can determine the charging voltage value according to the voltage values of the terminal and the mobile power supply, and the mobile power supply charges the terminal at the charging voltage value, namely, the terminal battery can be charged only by once voltage adjustment, the steps of firstly boosting the voltage of the mobile power supply side and then reducing the voltage of the terminal side in the existing charging process are omitted, the electric energy is saved, and the problem that the electric energy is lost when the mobile power supply charges the terminal in the prior art is effectively solved.
The second processing unit in the embodiment of the present invention is specifically configured to adjust the charging voltage value according to the voltage value, so that the charging voltage value is higher than the voltage value of the terminal battery by a preset threshold amount, and the mobile power supply charges the terminal battery at the charging voltage value.
The preset threshold amount in the embodiment of the invention is 0.05-0.15V.
Fig. 5 is a schematic structural diagram of another charging device according to an embodiment of the present invention, and as shown in fig. 5, the charging device according to the embodiment of the present invention is further provided with a monitoring unit, which monitors electric quantities of the mobile power supply and the terminal battery in real time, and when the electric quantity of the mobile power supply is smaller than an under-voltage threshold or the electric quantity of the terminal battery is larger than a full-charge threshold, triggers the mobile power supply to end charging. The values of the under-voltage threshold and the full threshold can be set according to requirements.
The relevant content of the charging device according to the embodiment of the present invention can be understood by referring to other embodiments, and is not described herein again.
The invention can bring the following beneficial effects:
according to the invention, the voltage values of the mobile power supply and the terminal battery are firstly obtained, the charging voltage value for charging the terminal is determined according to the voltage value, and the terminal battery is charged under the charging voltage value, so that the charging can be completed only by once voltage adjustment, the steps of firstly boosting the voltage of the mobile power supply side and then reducing the voltage of the terminal side in the existing charging process are omitted, the electric energy is saved, and the problem of high electric energy loss when the mobile power supply charges the terminal in the prior art is effectively solved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.