A bridgeless Boost PFC circuit applied to the auxiliary power supply of off-board chargers was designed to address the need for power factor correction.The average current mode control method of the improved detection circuit was adopted,and the working mode and control principle of the circuit were analyzed.A simulation model and experimental circuit were built.The results indicate that the power factor under rated conditions reaches over 0.98,meeting the application requirements.
关键词
功率因数校正/非车载充电机辅助电源/无桥Boost电路
Key words
power factor correction/auxiliary power supply of off-board charger/bridgeless boost circuit
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