MOTOR DRIVING CIRCUIT, MOTOR DEVICE, AND ELECTRIC VEHICLE

WIPO Patent Application WO/2013/141125

A1

A motor driving circuit, provided with: a power supply line connected to a DC power supply; an inverter for converting inputted power into AC and outputting the converted power to the motor, the input side of the inverter being connected to the power supply line; a power supply conduction switch for switching between conducting and cut-off states of the power supply line, the power supply conduction switch being provided on the power supply line; a voltage detector for detecting the voltage between the DC power supply and the power supply conduction switch; and an insulation resistance detector for performing an action for detecting the insulation resistance on the pre-stage side relative to the power supply conduction switch on the basis of the result of detection by the voltage detector in a state in which the power supply conduction switch is cut off, and then performing an action for detecting the insulation resistance on the post-stage side relative to the power supply conduction switch on the basis of the result of detection by the voltage detector in a state in which the power supply conduction switch is conductive.

HAYASHI YOSHINORI (JP)
OKADA HOSHIHITO (JP)
MAEDA YOSHIHIKO (JP)
ENOMOTO YOICHI (JP)
TAKAO HIROSHI (JP)

PCT/JP2013/057120

September 26, 2013

March 14, 2013

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SANYO ELECTRIC CO (JP)

H02P27/06; B60L3/00; B60L9/18; H02P29/02

JP2005304138A	2005-10-27
JPH08294225A	1996-11-05
JP2009027830A	2009-02-05

SANO SHIZUO (JP)
Shizuo Sano (JP)

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