公开(公告)号：US20110228429A1

公开(公告)日：2011-09-22

申请号：US13049565

申请日：2011-03-16

申请人： Keisuke UETA ,  Akinori Maruyama ,  Yoshihide Nakamura ,  Yoshinori Ikuta ,  Hideo Suganuma

发明人： Keisuke UETA ,  Akinori Maruyama ,  Yoshihide Nakamura ,  Yoshinori Ikuta ,  Hideo Suganuma

IPC分类号： H02H3/087 ,  H02H7/08

CPC分类号： H02H3/08 ,  B60N2/0232

摘要： A controller 43 turns on a semiconductor switch 41 in a normal mode, and turns off the semiconductor switch 41 in a sleep mode. A bypass resistor 5 is connected in parallel to the semiconductor switch 41. A resistance value of the bypass resister 5 is so large as that in the sleep mode, a dark current is supplied to an electronic device 3 via the bypass resistor 5, and if an electric wire downstream of the bypass resistor is short-circuited, an electric current more than a permissive current is prevented from flowing to the electric wire.

摘要翻译： 控制器43以正常模式打开半导体开关41，并且在睡眠模式下关闭半导体开关41。 旁路电阻器5并联连接到半导体开关41.旁路电阻器5的电阻值与睡眠模式中的电阻值一样大，通过旁路电阻器5向电子设备3提供暗电流，如果 旁路电阻器下游的电线短路，能够防止大于允许电流的电流流向电线。