Patent ID: 9744861
Date: 2017-08-29
CPC Classifications: B60L,E05Y,H02M,H02P,Y02T

Claim:
1. A power conversion device connected to a motor mounted on a vehicle, comprising: an inverter circuit which has a plurality of power conversion elements and converts direct-current power from a direct-current power supply into alternating-current power to drive the motor, using the plurality of power conversion elements; a gate drive substrate which includes a driver circuit to output drive signals to operate the plurality of power conversion elements; and a motor control substrate which includes a first control circuit to output control signals to output the drive signals to the driver circuit and a power supply circuit to supply operation power to the first control circuit, wherein when the vehicle is in a non-operation state and a regenerative voltage applied from the motor to the inverter circuit becomes equal to or more than a predetermined first threshold value, the power supply circuit supplies the operation power to the first control circuit, and the first control circuit starts when the operation power is supplied from the power supply circuit and outputs the control signals to the driver circuit, such that regenerative energy according to the regenerative voltage is consumed between the motor and the inverter circuit.