WIRELESS ELECTRICAL POWER SUPPLY APPARATUS

A wireless electrical power supply apparatus includes a first electrical power supply unit , a second electrical power supply unit , voltage control circuits and configured to control a first voltage difference between a first input voltage Eand a first output voltage Eduring forward power transmission and a second voltage difference between a second input voltage Eand a second output voltage Eduring reverse power transmission, a second switching control circuit configured to turn off a second transistor Qduring the forward power transmission and thereby cause a second diode Dto perform rectification, and a first switching control circuit configured to turn off a first transistor Qduring the reverse power transmission and thereby cause a first diode Dto perform rectification.