公开(公告)号：US20170237382A1

公开(公告)日：2017-08-17

申请号：US15583605

申请日：2017-05-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshinori HAYASHI ,  Hoshihito OKADA ,  Yoshihiko MAEDA ,  Yoichi ENOMOTO ,  Hiroshi TAKAO

IPC: H02P29/024 ,  B60L15/00 ,  H02P6/14 ,  B60L11/18 ,  H02M7/539 ,  H02M1/084

CPC classification number: H02P29/024 ,  B60L3/0069 ,  B60L11/1803 ,  B60L15/007 ,  B60L2200/12 ,  B60L2210/44 ,  B60Y2200/91 ,  H02M1/084 ,  H02M7/539 ,  H02P6/04 ,  H02P6/14 ,  H02P27/06 ,  Y02T10/642

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.

公开(公告)号：US20160181965A1

公开(公告)日：2016-06-23

申请号：US15056665

申请日：2016-02-29

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Yoshinori HAYASHI ,  Hoshihito OKADA ,  Yoshihiko MAEDA ,  Yoichi ENOMOTO ,  Hiroshi TAKAO

IPC: H02P27/06 ,  H02P6/04 ,  H02P6/14

CPC classification number: H02P29/024 ,  B60L3/0069 ,  B60L11/1803 ,  B60L15/007 ,  B60L2200/12 ,  B60L2210/44 ,  B60Y2200/91 ,  H02M1/084 ,  H02M7/539 ,  H02P6/04 ,  H02P6/14 ,  H02P27/06 ,  Y02T10/642

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.