To provide arrangement of fuse elements excellent in maintenance in a power supply for vehicle supplying power from a common power supply to a plurality of load systems using independent power supply wiring.
In a power supply 30 for supplying power to a plurality of different load systems, semiconductor switch elements 100a-100d being used as semiconductor fuses are arranged. The semiconductor switch elements 100a-100d are turned on/off forcibly in response to abnormal current detection by corresponding abnormal current detection circuits 102a-102d and off state is sustained through action of self-holding circuits 104a-104d to exhibit fuse function. The semiconductor switch elements 100a-100d realize a work equivalent to fuse replacement work by resetting to initial on state while being accompanied by resetting of the self-holding circuits 104a-104d through operational input from the outside of the power supply 30 to input terminals 36-38.
ANPO MASAHARU
OSHIMA YOSHIAKI
AOKI YOSHITAKE
| JPH10117133A | 1998-05-06 | |||
| JPH1068754A | 1998-03-10 | |||
| JPH1155095A | 1999-02-26 | |||
| JP2000125463A | 2000-04-28 |
Toshio Morita
Takao Matsuyama
Tadashi Muto