Title:
A motor drive circuit, a motor device, and electric vehicles
Document Type and Number:
Japanese Patent JP5971549
Kind Code:
B2
Abstract:
A motor driving circuit has a supply line connected to a DC power source, an inverter whose input side is connected to the supply line and whose output side is connected to a motor, a power switch inserted in the supply line for switching the supply line between conducting and cut-off states, a voltage detector for detecting a voltage between the direct-current power source and the power switch, and an insulation resistance detector for first detecting, based on a result of detection by the voltage detector with the power switch in the cut-off state, an insulation resistance on the preceding-stage side of the power switch and subsequently detecting, based on a result of detection by the voltage detector with the power switch in the conducting state, an insulation resistance on the succeeding-stage side of the power switch.
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Inventors:
Hayashi Yoshinori
Okada Seiji
Yoshihiko Maeda
Enomoto Yoichi
Hiroshi Takao
Okada Seiji
Yoshihiko Maeda
Enomoto Yoichi
Hiroshi Takao
Application Number:
JP2012067793A
Publication Date:
August 17, 2016
Filing Date:
March 23, 2012
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
H02P29/02; B60L3/00; B60L9/18; H02P27/06
Domestic Patent References:
| JP2005304138A | ||||
| JP8294225A | ||||
| JP2009027830A |
Attorney, Agent or Firm:
Sano patent office