POWER SUPPLY DEVICE

Abstract

A power supply device that wirelessly transmits power includes: a DC power source; an inverter circuit connected to the DC power source; a resonance circuit connected to the inverter circuit and including a power transmission coil; sensors that detect a current value flowing through the circuits or a voltage value applied to the circuits; and a control device connected to the inverter circuit and the sensor. The control device controls, when causing the power supply device to wirelessly transmit power, the inverter circuit to convert a DC voltage supplied from the DC power source into an AC voltage and supply the AC voltage to the resonance circuit. The control device controls, when diagnosing a sensor abnormality, the inverter circuit to supply the DC voltage to the resonance circuit without converting the DC voltage into the AC voltage and diagnoses a sensor abnormality based on a present sensor detection value.

CPC Classifications