一种采用自谐振PWM的双向无线电能传输电动汽车充电器

This letter suggests a large air-gap bidirectional wireless power transfer charger for electric vehicle. It is controlled by pulse width modulation with a self-resonant frequency formed by self-inductance and resonant capacitor so that constant frequency operation can be accomplished under large air-gap without additional current chopper. The feasibility of the proposed method has been verified wi...