Vehicle-mounted bidirectional charger circuit of electric automobile
A technology of electric vehicles and chargers, which is applied in the direction of electric vehicle charging technology, electric vehicles, charging stations, etc., can solve the problems of reduced product stability, complex topology circuits, complex structures, etc., and achieve low cost, high power density, and small volume effect
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[0026] The main circuit topology of the vehicle-mounted two-way charger circuit in the embodiment of the present invention is as figure 1 As shown, it includes a rectifier module, a DC / DC conversion module and a control circuit. The rectifier module is connected to the DC / DC conversion module through the DC bus. The on-board two-way charger circuit has two working modes, including the forward battery charging mode in mode one and the reverse AC output mode in mode two.
[0027] In the forward battery charging mode, the rectifier module works as a full-bridge PWM rectifier circuit, and the DC / DC conversion module works as a full-bridge LLC rectifier circuit; in the reverse AC output mode, the DC / DC conversion module works as a full-bridge LC The rectifier circuit works, and the rectifier module works as a full-bridge inverter circuit.
[0028] Such as figure 1 As shown, in the mode, after the AC power Vin is input, the voltage Vbus of the full-bridge PWM rectifier bus through the fo...
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