Patent ID: 6900555
Filing Date: 2005-05-31
Classification: B60R,H02J

Abstract:
1. A load control module for a vehicle comprising: a power circuit portion connected to a power line; a communication circuit portion connected to a communication line; a microcomputer connected to said communication portion and said power circuit portion; a driver circuit, which is connected to an output interface portion of said microcomputer, for controlling power supply to a load, said driver circuit including plural output terminals to which said load is connected, and plural semiconductor power control elements, which are provided with a self-protection function; wherein, a control signal is provided from an output terminal of said microcomputer to a gate terminal of said semiconductor power control elements; electric power is supplied from said power circuit portion to a source terminal of said semiconductor power control elements; a drain terminal of said semiconductor power control elements is connected to said plural output terminals to which said load is connected; when an over-current flows into said semiconductor power control element or when said semiconductor power control element has an abnormally high temperature, said semiconductor power control element self-shields; said plural output terminals to which said load is connected include plural terminals to which a lamp of an indicator is connected, an accessory power supply terminal and a power supply terminal for outputting a battery power supply.