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CN112019060A - Vehicle-mounted AC/DC quick-charging power adapter circuit - Google Patents

Vehicle-mounted AC/DC quick-charging power adapter circuit
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CN112019060A
CN112019060ACN202010887343.XACN202010887343ACN112019060ACN 112019060 ACN112019060 ACN 112019060ACN 202010887343 ACN202010887343 ACN 202010887343ACN 112019060 ACN112019060 ACN 112019060A
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module
output
fast charging
port
input
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陈耀斌
李正中
李经伟
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Dongguan Dazhong Electronics Co Ltd
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Dongguan Dazhong Electronics Co Ltd
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Abstract

The invention relates to the technical field of power supplies, in particular to a vehicle-mounted alternating current-direct current quick-charging power adapter circuit which comprises a direct current input port, an alternating current input circuit and a quick-charging output circuit, wherein the direct current input port is connected with the alternating current input circuit; the alternating current input circuit comprises an alternating current input port, an alternating current output port, a rectification filter module, a pulse width modulation module and a voltage stabilization output module; the quick charging output circuit comprises a direct current conversion module, a voltage reduction and stabilization module and a quick charging protocol module; the input end of the direct current conversion module is respectively connected with the output end of the voltage stabilization output module and the direct current input port; and the output end of the direct current conversion module is connected with the input end of the fast charging protocol module through the voltage reduction and stabilization module. The invention can realize a power supply with multiple purposes by arranging the direct current input port, the alternating current input circuit and the quick charging output circuit, and can be used for alternating current plug-in power supply and vehicle-mounted power supply.

Description

Translated fromChinese
一种车载交直流快充电源适配器电路A vehicle AC and DC fast charging source adapter circuit

技术领域technical field

本发明涉及电源技术领域,具体涉及一种车载交直流快充电源适配器电路。The invention relates to the technical field of power supplies, in particular to a vehicle-mounted AC and DC fast charging source adapter circuit.

背景技术Background technique

电源适配器是小型便携式电子设备及电子电器的供电电源变换设备,它主要用于将交流输入转换为直流输出;按连接方式可分为插墙式和桌面式。广泛配套于安防摄像头,机顶盒,路由器,灯条,按摩仪等设备中。The power adapter is a power supply conversion device for small portable electronic equipment and electronic appliances. It is mainly used to convert AC input into DC output; it can be divided into wall-plug type and desktop type according to the connection method. Widely used in security cameras, set-top boxes, routers, light bars, massagers and other equipment.

但是现有的电源适配器的输入模式单一,只存在单独的输入方式,当用户需要通过市电输入或者通过车载点烟器输入的时候,需要采用两个不同的电源适配器,给用户带来不便。However, the existing power adapter has a single input mode and only has a separate input mode. When the user needs to input through the mains or through the vehicle cigarette lighter, two different power adapters need to be used, which brings inconvenience to the user.

发明内容SUMMARY OF THE INVENTION

本发明的目的是针对现有技术中的上述不足,提供了一种车载交直流快充电源适配器电路。The purpose of the present invention is to provide a vehicle-mounted AC-DC fast charging source adapter circuit aiming at the above-mentioned deficiencies in the prior art.

本发明的目的通过以下技术方案实现:一种车载交直流快充电源适配器电路,包括直流输入端口、交流输入电路以及快充输出电路;所述直流输入端口以及交流输入电路的输出端分别与快充输出电路的输入端连接;所述交流输入电路的输出端与直流输入端口之间设有隔离元件;The purpose of the present invention is achieved through the following technical solutions: a vehicle-mounted AC and DC fast charging source adapter circuit, comprising a DC input port, an AC input circuit and a fast charging output circuit; the DC input port and the output end of the AC input circuit are respectively connected with the fast charging circuit. The input end of the charging output circuit is connected; an isolation element is arranged between the output end of the AC input circuit and the DC input port;

所述交流输入电路包括交流输入口、交流输出口、整流滤波模块、脉宽调制模块以及稳压输出模块;所述交流输入口通过整流滤波模块与脉宽调制模块的输入端连接;所述脉宽调制模块的输出端与稳压输出模块的输入端连接;The AC input circuit includes an AC input port, an AC output port, a rectification filter module, a pulse width modulation module and a voltage stabilization output module; the AC input port is connected to the input end of the pulse width modulation module through the rectification filter module; The output end of the wide modulation module is connected with the input end of the voltage stabilization output module;

所述快充输出电路包括直流转换模块、降压稳压模块以及快充协议模块;所述直流转换模块的输入端分别与稳压输出模块的输出端以及直流输入端口连接;所述直流转换模块的输出端通过降压稳压模块与快充协议模块的输入端连接。The fast charging output circuit includes a DC conversion module, a step-down voltage regulator module and a fast charging protocol module; the input end of the DC conversion module is respectively connected with the output end of the voltage regulator output module and the DC input port; the DC conversion module The output end of the device is connected to the input end of the fast charging protocol module through the step-down voltage regulator module.

本发明进一步设置为,所述整流滤波模块包括共模电感LF1、共模电感LF2、整流桥BD1、整流桥BD2以及电容C1;The present invention further provides that the rectification filter module includes a common mode inductor LF1, a common mode inductor LF2, a rectifier bridge BD1, a rectifier bridge BD2 and a capacitor C1;

所述交流输入口依次通过共模电感LF1以及共模电感LF1后分别与整流桥BD1的输入端以及整流桥BD2的输入端连接;所述整流桥BD1的输出端以及整流桥BD2的输出端分别通过电容C1接地;所述整流桥BD1的输出端以及整流桥BD2的输出端分别与脉宽调制模块的输入端连接。The AC input port is connected to the input end of the rectifier bridge BD1 and the input end of the rectifier bridge BD2 through the common mode inductor LF1 and the common mode inductor LF1 in sequence; the output end of the rectifier bridge BD1 and the output end of the rectifier bridge BD2 are respectively The capacitor C1 is grounded; the output end of the rectifier bridge BD1 and the output end of the rectifier bridge BD2 are respectively connected to the input end of the pulse width modulation module.

本发明进一步设置为,所述交流输入口与整流滤波模块之间保险管 F1、压敏电阻VZ1以及热敏电阻NTC1。The present invention further provides that, between the AC input port and the rectification filter module, a fuse F1, a varistor VZ1 and a thermistor NTC1 are provided.

本发明进一步设置为,所述脉宽调制模块包括变压器T1、MOS管Q1 以及主控芯片U1;所述变压器T1的原边的一端与整流滤波模块的输出端连接;所述变压器T1的原边的另一端与MOS管Q1的漏极连接;所述MOS管Q1的源极通过电阻R26接地;所述MOS管Q1的栅极与主控芯片U1的控制端连接。The present invention further provides that, the pulse width modulation module includes a transformer T1, a MOS transistor Q1 and a main control chip U1; one end of the primary side of the transformer T1 is connected to the output end of the rectifier filter module; the primary side of the transformer T1 The other end of the MOS transistor Q1 is connected to the drain of the MOS transistor Q1; the source of the MOS transistor Q1 is grounded through the resistor R26; the gate of the MOS transistor Q1 is connected to the control terminal of the main control chip U1.

本发明进一步设置为,所述稳压输出模块包括MOS管Q2、同步整流芯片U2以及电容C11;所述变压器T1的副边的一端与交流输出口连接;所述变压器T1的副边的另一端通过电容C11接地;所述变压器T1的副边的另一端与MOS管Q2的漏极连接;所述MOS管Q2的源极接地;所述MOS管Q2的栅极与同步整流芯片U2第八端口连接;所述同步整流芯片U2的第四端口与MOS 管Q2的漏极连接。The present invention is further provided that the voltage regulator output module includes a MOS transistor Q2, a synchronous rectifier chip U2 and a capacitor C11; one end of the secondary side of the transformer T1 is connected to the AC output port; the other end of the secondary side of the transformer T1 The other end of the secondary side of the transformer T1 is connected to the drain of the MOS transistor Q2; the source of the MOS transistor Q2 is grounded; the gate of the MOS transistor Q2 is connected to the eighth port of the synchronous rectifier chip U2 connection; the fourth port of the synchronous rectification chip U2 is connected to the drain of the MOS transistor Q2.

本发明进一步设置为,所述隔离元件为二极管D6;所述二极管D6的正极与变压器T1的副边的一端连接;所述二极管D6的负极与交流输出口连接。The present invention further provides that the isolation element is a diode D6; the anode of the diode D6 is connected to one end of the secondary side of the transformer T1; the cathode of the diode D6 is connected to the AC output port.

本发明进一步设置为,所述稳压输出模块还包括反馈稳压芯片U2A;所述变压器T1的副边的一端与反馈稳压芯片U2A连接。The present invention further provides that the voltage stabilization output module further includes a feedback voltage stabilization chip U2A; and one end of the secondary side of the transformer T1 is connected to the feedback voltage stabilization chip U2A.

本发明进一步设置为,所述直流转换模块包括直流转换芯片U4;所述降压稳压模块包括MOS管Q9以及电感L4;所述快充协议模块包括快充协议芯片U5;The present invention further provides that the DC conversion module includes a DC conversion chip U4; the step-down voltage regulator module includes a MOS transistor Q9 and an inductor L4; the fast charging protocol module includes a fast charging protocol chip U5;

所述直流转换芯片U4的第一端口分别与交流输入电路的输出端以及直流输入端口连接;所述直流转换芯片U4的第九端口与MOS管Q9的漏极连接;所述MOS管Q9的源极接地;所述MOS管Q9的栅极与直流转换芯片U4的第八端口连接;所述直流转换芯片U4的第九端口通过电感L4后与快充协议芯片 U5的第四端口连接。The first port of the DC conversion chip U4 is respectively connected to the output end of the AC input circuit and the DC input port; the ninth port of the DC conversion chip U4 is connected to the drain of the MOS transistor Q9; the source of the MOS transistor Q9 The pole is grounded; the gate of the MOS transistor Q9 is connected to the eighth port of the DC conversion chip U4; the ninth port of the DC conversion chip U4 is connected to the fourth port of the fast charging protocol chip U5 after passing through the inductor L4.

本发明进一步设置为,所述快充输出电路的数量为五个;五个快充输出电路并联设置。In the present invention, the number of the fast charging output circuits is five; and the five fast charging output circuits are arranged in parallel.

本发明的有益效果:本发明通过设置直流输入端口、交流输入电路以及快充输出电路,可实现一个电源多用途,既能交流插电用也能车载使用。Beneficial effects of the present invention: The present invention can realize a multi-purpose power supply by providing a DC input port, an AC input circuit and a fast charging output circuit, which can be used for both AC plug-in and vehicle use.

附图说明Description of drawings

利用附图对发明作进一步说明,但附图中的实施例不构成对本发明的任何限制,对于本领域的普通技术人员,在不付出创造性劳动的前提下,还可以根据以下附图获得其它的附图。The invention will be further described by using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. For those of ordinary skill in the art, under the premise of no creative work, other Attached.

图1是本发明交流输入电路的电路图;1 is a circuit diagram of an AC input circuit of the present invention;

图2是本发明快充输出电路的电路图;2 is a circuit diagram of a fast charge output circuit of the present invention;

图3是本发明五个快充输出电路配合的电路图;FIG. 3 is a circuit diagram of the coordination of five fast-charging output circuits of the present invention;

1、直流输入端口;2、交流输入口;3、交流输出口。1. DC input port; 2. AC input port; 3. AC output port.

具体实施方式Detailed ways

结合以下实施例对本发明作进一步描述。The present invention will be further described with reference to the following examples.

由图1至图3可知,本实施例所述的一种车载交直流快充电源适配器电路,包括直流输入端口1、交流输入电路以及快充输出电路;所述直流输入端口1以及交流输入电路的输出端分别与快充输出电路的输入端连接;所述交流输入电路的输出端与直流输入端口1之间设有隔离元件;It can be seen from FIG. 1 to FIG. 3 that a vehicle-mounted AC/DC fast charging source adapter circuit described in this embodiment includes aDC input port 1, an AC input circuit and a fast charging output circuit; theDC input port 1 and the AC input circuit The output terminals of the AC input circuit are respectively connected with the input terminals of the fast charging output circuit; an isolation element is provided between the output terminal of the AC input circuit and theDC input port 1;

所述交流输入电路包括交流输入口2、交流输出口3、整流滤波模块、脉宽调制模块以及稳压输出模块;所述交流输入口2通过整流滤波模块与脉宽调制模块的输入端连接;所述脉宽调制模块的输出端与稳压输出模块的输入端连接;The AC input circuit includes anAC input port 2, anAC output port 3, a rectification filter module, a pulse width modulation module and a voltage stabilization output module; theAC input port 2 is connected to the input end of the pulse width modulation module through the rectification filter module; The output end of the pulse width modulation module is connected with the input end of the voltage stabilization output module;

所述快充输出电路包括直流转换模块、降压稳压模块以及快充协议模块;所述直流转换模块的输入端分别与稳压输出模块的输出端以及直流输入端口 1连接;所述直流转换模块的输出端通过降压稳压模块与快充协议模块的输入端连接。The fast charging output circuit includes a DC conversion module, a step-down voltage regulator module and a fast charging protocol module; the input end of the DC conversion module is respectively connected to the output end of the voltage regulator output module and theDC input port 1; the DC conversion module is connected to theDC input port 1 respectively; The output end of the module is connected with the input end of the fast charging protocol module through the step-down voltage regulator module.

具体地,本实施例所述的车载交直流快充电源适配器电路,当该适配器接入交流市电的时候,交流市电依次通过整流滤波模块、脉宽调制模块以及稳压输出模块后输出24V直流电压给快充输出电路,快充输出电路通过直流转换模块、降压稳压模块以及快充协议模块将24V直流电压进行转换后给待充电设备进行快充;而当该适配器直接接入车载点烟器的时候,车载点烟器直接通过直流输入端口1输入直流电压至快充输出电路,快充输出电路通过直流转换模块、降压稳压模块以及快充协议模块后给待充电设备进行快充,另外由于隔离元件的作用,能够防止车辆的电流倒流至交流输入电路中;本实施例通过设置直流输入端口1、交流输入电路以及快充输出电路,可实现一个电源多用途,既能交流插电用也能车载使用。Specifically, in the vehicle AC and DC fast charging source adapter circuit described in this embodiment, when the adapter is connected to the AC mains, the AC mains passes through the rectification filter module, the pulse width modulation module and the voltage regulator output module in turn andoutputs 24V The DC voltage is supplied to the fast charging output circuit, and the fast charging output circuit converts the 24V DC voltage through the DC conversion module, the step-down voltage regulator module and the fast charging protocol module to fast charge the device to be charged; and when the adapter is directly connected to the vehicle When the cigarette lighter is used, the vehicle cigarette lighter directly inputs the DC voltage to the fast charge output circuit through theDC input port 1, and the fast charge output circuit passes through the DC conversion module, the step-down voltage regulator module and the fast charge protocol module. Fast charging, in addition, due to the function of the isolation element, the current of the vehicle can be prevented from flowing back into the AC input circuit; in this embodiment, by setting theDC input port 1, the AC input circuit and the fast charging output circuit, a multi-purpose power supply can be realized, which can both AC plug-in can also be used in vehicles.

本实施例所述的一种车载交直流快充电源适配器电路,所述整流滤波模块包括共模电感LF1、共模电感LF2、整流桥BD1、整流桥BD2以及电容C1;In the vehicle-mounted AC-DC fast charging source adapter circuit described in this embodiment, the rectifier filter module includes a common mode inductor LF1, a common mode inductor LF2, a rectifier bridge BD1, a rectifier bridge BD2, and a capacitor C1;

所述交流输入口2依次通过共模电感LF1以及共模电感LF1后分别与整流桥BD1的输入端以及整流桥BD2的输入端连接;所述整流桥BD1的输出端以及整流桥BD2的输出端分别通过电容C1接地;所述整流桥BD1的输出端以及整流桥BD2的输出端分别与脉宽调制模块的输入端连接。TheAC input port 2 is connected to the input end of the rectifier bridge BD1 and the input end of the rectifier bridge BD2 through the common mode inductor LF1 and the common mode inductor LF1 in sequence; the output end of the rectifier bridge BD1 and the output end of the rectifier bridge BD2 are respectively connected. They are respectively grounded through the capacitor C1; the output end of the rectifier bridge BD1 and the output end of the rectifier bridge BD2 are respectively connected to the input end of the pulse width modulation module.

具体地,共模电感LF1、共模电感LF2、整流桥BD1、整流桥BD2以及电容C1组成EMI滤波电路;EMI滤波电路的共模电感LF1以及共模电感LF2滤除来自市电线路干扰,再经整流桥BD1、整流桥BD2以及电容C1滤波成平滑的直流电压,为脉宽调制模块提供能量。Specifically, the common mode inductor LF1, the common mode inductor LF2, the rectifier bridge BD1, the rectifier bridge BD2 and the capacitor C1 form an EMI filter circuit; the common mode inductor LF1 and the common mode inductor LF2 of the EMI filter circuit filter out interference from the mains line, and then The rectifier bridge BD1, the rectifier bridge BD2 and the capacitor C1 filter into a smooth DC voltage to provide energy for the pulse width modulation module.

本实施例所述的一种车载交直流快充电源适配器电路,所述交流输入口2 与整流滤波模块之间保险管F1、压敏电阻VZ1以及热敏电阻NTC1。具体地,保险管F1为电路异常提供断电保护;压敏电阻VZ1能够吸收L线对N线的雷击能量;热敏电阻NTC1能够用于减小输入浪涌电流,防止开机瞬间L-N输入市电窜入较大峰值电流损伤后级电路零件。In the vehicle-mounted AC/DC fast charging source adapter circuit described in this embodiment, a fuse F1, a varistor VZ1 and a thermistor NTC1 are connected between theAC input port 2 and the rectification filter module. Specifically, the fuse F1 provides power-off protection for abnormal circuits; the varistor VZ1 can absorb the lightning strike energy from the L line to the N line; the thermistor NTC1 can be used to reduce the input surge current and prevent L-N from entering the mains at the moment of startup Entering a large peak current damages the circuit parts of the latter stage.

本实施例所述的一种车载交直流快充电源适配器电路,所述脉宽调制模块包括变压器T1、MOS管Q1以及主控芯片U1;所述变压器T1的原边的一端与整流滤波模块的输出端连接;所述变压器T1的原边的另一端与MOS管Q1 的漏极连接;所述MOS管Q1的源极通过电阻R26接地;所述MOS管Q1的栅极与主控芯片U1的控制端连接。通过上述设置能够进行PWM脉冲调制。In the vehicle AC and DC fast charging source adapter circuit described in this embodiment, the pulse width modulation module includes a transformer T1, a MOS transistor Q1 and a main control chip U1; one end of the primary side of the transformer T1 is connected to the rectifier filter module. The other end of the primary side of the transformer T1 is connected to the drain of the MOS transistor Q1; the source of the MOS transistor Q1 is grounded through the resistor R26; the gate of the MOS transistor Q1 is connected to the main control chip U1 Control terminal connection. PWM pulse modulation can be performed by the above-mentioned settings.

本实施例所述的一种车载交直流快充电源适配器电路,所述稳压输出模块包括MOS管Q2、同步整流芯片U2以及电容C11;所述变压器T1的副边的一端与交流输出口3连接;所述变压器T1的副边的另一端通过电容C11接地;所述变压器T1的副边的另一端与MOS管Q2的漏极连接;所述MOS管Q2的源极接地;所述MOS管Q2的栅极与同步整流芯片U2第八端口连接;所述同步整流芯片U2的第四端口与MOS管Q2的漏极连接。具体地,本实施例通过上述设置能够实现同步整流的功能,使得稳压输出模块输出稳定的直流电压。In the vehicle AC and DC fast charging source adapter circuit described in this embodiment, the voltage regulator output module includes a MOS transistor Q2, a synchronous rectifier chip U2 and a capacitor C11; one end of the secondary side of the transformer T1 is connected to theAC output port 3 connected; the other end of the secondary side of the transformer T1 is grounded through the capacitor C11; the other end of the secondary side of the transformer T1 is connected to the drain of the MOS transistor Q2; the source of the MOS transistor Q2 is grounded; the MOS transistor The gate of Q2 is connected to the eighth port of the synchronous rectification chip U2; the fourth port of the synchronous rectification chip U2 is connected to the drain of the MOS transistor Q2. Specifically, in this embodiment, the function of synchronous rectification can be realized through the above arrangement, so that the stable voltage output module outputs a stable DC voltage.

本实施例所述的一种车载交直流快充电源适配器电路,所述隔离元件为二极管D6;所述二极管D6的正极与变压器T1的副边的一端连接;所述二极管D6的负极与交流输出口3连接。上述设置能够防止车辆的电流倒流至交流输入电路中。In the vehicle-mounted AC-DC fast charging source adapter circuit described in this embodiment, the isolation element is a diode D6; the anode of the diode D6 is connected to one end of the secondary side of the transformer T1; the cathode of the diode D6 is connected to theAC output Port 3 connection. The above arrangement can prevent the current of the vehicle from flowing back into the AC input circuit.

本实施例所述的一种车载交直流快充电源适配器电路,所述稳压输出模块还包括反馈稳压芯片U2A;所述变压器T1的副边的一端与反馈稳压芯片U2A 连接。In the vehicle AC and DC fast charging source adapter circuit described in this embodiment, the voltage stabilization output module further includes a feedback voltage stabilization chip U2A; one end of the secondary side of the transformer T1 is connected to the feedback voltage stabilization chip U2A.

本实施例所述的一种车载交直流快充电源适配器电路,所述直流转换模块包括直流转换芯片U4;所述降压稳压模块包括MOS管Q9以及电感L4;所述快充协议模块包括快充协议芯片U5;In the vehicle AC-DC fast charging source adapter circuit described in this embodiment, the DC conversion module includes a DC conversion chip U4; the step-down voltage regulator module includes a MOS transistor Q9 and an inductor L4; the fast charging protocol module includes Fast charge protocol chip U5;

所述直流转换芯片U4的第一端口分别与交流输入电路的输出端以及直流输入端口1连接;所述直流转换芯片U4的第九端口与MOS管Q9的漏极连接;所述MOS管Q9的源极接地;所述MOS管Q9的栅极与直流转换芯片U4的第八端口连接;所述直流转换芯片U4的第九端口通过电感L4后与快充协议芯片 U5的第四端口连接。具体地,本实施例通过上述设置实现快充功能。The first port of the DC conversion chip U4 is connected to the output end of the AC input circuit and theDC input port 1 respectively; the ninth port of the DC conversion chip U4 is connected to the drain of the MOS transistor Q9; The source is grounded; the gate of the MOS transistor Q9 is connected to the eighth port of the DC conversion chip U4; the ninth port of the DC conversion chip U4 is connected to the fourth port of the fast charging protocol chip U5 after passing through the inductor L4. Specifically, this embodiment implements the fast charging function through the above settings.

本实施例所述的一种车载交直流快充电源适配器电路,所述快充输出电路的数量为五个;五个快充输出电路并联设置。In the vehicle-mounted AC and DC fast charging source adapter circuit described in this embodiment, the number of the fast charging output circuits is five; the five fast charging output circuits are arranged in parallel.

具体地,本实施例通过设置五个快充输出电路,即设置五个独立工作的输出端口,从而能够同时对多个设备进行快充。Specifically, in this embodiment, by setting five fast charging output circuits, that is, setting five output ports that work independently, it is possible to fast charge multiple devices at the same time.

最后应当说明的是,以上实施例仅用以说明本发明的技术方案,而非对本发明保护范围的限制,尽管参照较佳实施例对本发明作了详细地说明,本领域的普通技术人员应当理解,可以对本发明的技术方案进行修改或者等同替换,而不脱离本发明技术方案的实质和范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that , the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims (9)

Translated fromChinese
1.一种车载交直流快充电源适配器电路,其特征在于:包括直流输入端口(1)、交流输入电路以及快充输出电路;所述直流输入端口(1)以及交流输入电路的输出端分别与快充输出电路的输入端连接;所述交流输入电路的输出端与直流输入端口(1)之间设有隔离元件;1. A vehicle-mounted AC and DC fast charging source adapter circuit, characterized in that: comprising a DC input port (1), an AC input circuit and a fast charging output circuit; the DC input port (1) and the output end of the AC input circuit are respectively is connected with the input end of the fast charging output circuit; an isolation element is arranged between the output end of the AC input circuit and the DC input port (1);所述交流输入电路包括交流输入口(2)、交流输出口(3)、整流滤波模块、脉宽调制模块以及稳压输出模块;所述交流输入口(2)通过整流滤波模块与脉宽调制模块的输入端连接;所述脉宽调制模块的输出端与稳压输出模块的输入端连接;The AC input circuit includes an AC input port (2), an AC output port (3), a rectification filter module, a pulse width modulation module and a voltage stabilization output module; the AC input port (2) passes through the rectification filter module and the pulse width modulation module. the input end of the module is connected; the output end of the pulse width modulation module is connected with the input end of the voltage stabilization output module;所述快充输出电路包括直流转换模块、降压稳压模块以及快充协议模块;所述直流转换模块的输入端分别与稳压输出模块的输出端以及直流输入端口(1)连接;所述直流转换模块的输出端通过降压稳压模块与快充协议模块的输入端连接。The fast charging output circuit includes a DC conversion module, a step-down voltage regulator module and a fast charging protocol module; the input end of the DC conversion module is respectively connected to the output end of the voltage regulator output module and the DC input port (1); the The output end of the DC conversion module is connected with the input end of the fast charging protocol module through the step-down voltage regulator module.2.根据权利要求1所述的一种车载交直流快充电源适配器电路,其特征在于:所述整流滤波模块包括共模电感LF1、共模电感LF2、整流桥BD1、整流桥BD2以及电容C1;2 . The vehicle-mounted AC-DC fast charging source adapter circuit according to claim 1 , wherein the rectifier filter module comprises a common mode inductor LF1 , a common mode inductor LF2 , a rectifier bridge BD1 , a rectifier bridge BD2 and a capacitor C1 . 3 . ;所述交流输入口(2)依次通过共模电感LF1以及共模电感LF1后分别与整流桥BD1的输入端以及整流桥BD2的输入端连接;所述整流桥BD1的输出端以及整流桥BD2的输出端分别通过电容C1接地;所述整流桥BD1的输出端以及整流桥BD2的输出端分别与脉宽调制模块的输入端连接。The AC input port (2) is connected to the input end of the rectifier bridge BD1 and the input end of the rectifier bridge BD2 after passing through the common mode inductor LF1 and the common mode inductor LF1 in sequence; the output end of the rectifier bridge BD1 and the rectifier bridge BD2 The output ends are grounded through the capacitor C1 respectively; the output end of the rectifier bridge BD1 and the output end of the rectifier bridge BD2 are respectively connected to the input end of the pulse width modulation module.3.根据权利要求1所述的一种车载交直流快充电源适配器电路,其特征在于:所述交流输入口(2)与整流滤波模块之间保险管F1、压敏电阻VZ1以及热敏电阻NTC1。3. A vehicle-mounted AC-DC fast charging source adapter circuit according to claim 1, characterized in that: a fuse F1, a varistor VZ1 and a thermistor between the AC input port (2) and the rectification filter module NTC1.4.根据权利要求1所述的一种车载交直流快充电源适配器电路,其特征在于:所述脉宽调制模块包括变压器T1、MOS管Q1以及主控芯片U1;所述变压器T1的原边的一端与整流滤波模块的输出端连接;所述变压器T1的原边的另一端与MOS管Q1的漏极连接;所述MOS管Q1的源极通过电阻R26接地;所述MOS管Q1的栅极与主控芯片U1的控制端连接。4. A vehicle-mounted AC-DC fast charging source adapter circuit according to claim 1, wherein the pulse width modulation module comprises a transformer T1, a MOS transistor Q1 and a main control chip U1; the primary side of the transformer T1 One end of the transformer T1 is connected to the output end of the rectifier filter module; the other end of the primary side of the transformer T1 is connected to the drain of the MOS transistor Q1; the source of the MOS transistor Q1 is grounded through the resistor R26; the gate of the MOS transistor Q1 The pole is connected to the control terminal of the main control chip U1.5.根据权利要求4所述的一种车载交直流快充电源适配器电路,其特征在于:所述稳压输出模块包括MOS管Q2、同步整流芯片U2以及电容C11;所述变压器T1的副边的一端与交流输出口(3)连接;所述变压器T1的副边的另一端通过电容C11接地;所述变压器T1的副边的另一端与MOS管Q2的漏极连接;所述MOS管Q2的源极接地;所述MOS管Q2的栅极与同步整流芯片U2第八端口连接;所述同步整流芯片U2的第四端口与MOS管Q2的漏极连接。5 . The vehicle-mounted AC and DC fast charging source adapter circuit according to claim 4 , wherein the voltage regulator output module comprises a MOS transistor Q2, a synchronous rectifier chip U2 and a capacitor C11; the secondary side of the transformer T1 One end of the transformer T1 is connected to the AC output port (3); the other end of the secondary side of the transformer T1 is grounded through the capacitor C11; the other end of the secondary side of the transformer T1 is connected to the drain of the MOS transistor Q2; the MOS transistor Q2 The source of the MOSFET is grounded; the gate of the MOS transistor Q2 is connected to the eighth port of the synchronous rectifier chip U2; the fourth port of the synchronous rectifier chip U2 is connected to the drain of the MOS transistor Q2.6.根据权利要求5所述的一种车载交直流快充电源适配器电路,其特征在于:所述隔离元件为二极管D6;所述二极管D6的正极与变压器T1的副边的一端连接;所述二极管D6的负极与交流输出口(3)连接。6. A vehicle-mounted AC-DC fast charging source adapter circuit according to claim 5, characterized in that: the isolation element is a diode D6; the anode of the diode D6 is connected to one end of the secondary side of the transformer T1; the The cathode of the diode D6 is connected to the AC output port (3).7.根据权利要求5所述的一种车载交直流快充电源适配器电路,其特征在于:所述稳压输出模块还包括反馈稳压芯片U2A;所述变压器T1的副边的一端与反馈稳压芯片U2A连接。7 . The vehicle-mounted AC-DC fast charging source adapter circuit according to claim 5 , wherein the voltage-stabilizing output module further comprises a feedback voltage-stabilizing chip U2A; one end of the secondary side of the transformer T1 is connected to the feedback voltage-stabilizing chip U2A. Pressure chip U2A connection.8.根据权利要求1所述的一种车载交直流快充电源适配器电路,其特征在于:所述直流转换模块包括直流转换芯片U4;所述降压稳压模块包括MOS管Q9以及电感L4;所述快充协议模块包括快充协议芯片U5;8. The vehicle-mounted AC-DC fast charging source adapter circuit according to claim 1, wherein the DC conversion module comprises a DC conversion chip U4; the step-down voltage regulator module comprises a MOS transistor Q9 and an inductor L4; The fast charging protocol module includes a fast charging protocol chip U5;所述直流转换芯片U4的第一端口分别与交流输入电路的输出端以及直流输入端口(1)连接;所述直流转换芯片U4的第九端口与MOS管Q9的漏极连接;所述MOS管Q9的源极接地;所述MOS管Q9的栅极与直流转换芯片U4的第八端口连接;所述直流转换芯片U4的第九端口通过电感L4后与快充协议芯片U5的第四端口连接。The first port of the DC conversion chip U4 is respectively connected to the output end of the AC input circuit and the DC input port (1); the ninth port of the DC conversion chip U4 is connected to the drain of the MOS transistor Q9; the MOS transistor The source of Q9 is grounded; the gate of the MOS transistor Q9 is connected to the eighth port of the DC conversion chip U4; the ninth port of the DC conversion chip U4 is connected to the fourth port of the fast charging protocol chip U5 after passing through the inductor L4 .9.根据权利要求1所述的一种车载交直流快充电源适配器电路,其特征在于:所述快充输出电路的数量为五个;五个快充输出电路并联设置。9 . The vehicle-mounted AC and DC fast charging source adapter circuit according to claim 1 , wherein the number of the fast charging output circuits is five; and the five fast charging output circuits are arranged in parallel. 10 .
CN202010887343.XA2020-08-282020-08-28Vehicle-mounted AC/DC quick-charging power adapter circuitPendingCN112019060A (en)

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