HIGH-VOLTAGE BATTERY CHARGING SYSTEM FOR USE IN ELECTRIC VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide a high-voltage battery charging system that is mounted inside the vehicle body of an electric vehicle to charge a high-voltage battery unit inside the vehicle body.

SOLUTION: The high-voltage battery charging system has a rectifier circuit, a power factor correction circuit, and a non-insulating DC-DC converting circuit. The rectifier circuit is connected to a common terminal to rectify an AC input voltage to a rectified voltage. The power factor correction circuit is connected to the rectifier circuit and a bus to increase power factor and to generate a bus voltage. The non-insulating DC-DC converting circuit is connected to the power factor correction circuit and the high-voltage battery unit to charge the latter battery unit. No transformers are included in the non-insulating DC-DC converting circuit.

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