| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a load control circuit capable of reducing cost by eliminating time and labor in manufacture, by reducing the number of part items. <P>SOLUTION: This load control circuit for a vehicle has a power supply line 102 connected in series with a fuse 14, a room lamp 10 and a transistor 12, a first line 103 connected in series with a courtesy lamp 20 and a switch 22, a microcomputer 13 for switching the transistor 12 in response to a state of the switch 22, and a first detecting line 110 connecting between the microcomputer 13, the courtesy lamp 20 and the switch 22, and is constituted such that the microcomputer 13 detects the state of the switch 22 by an electric current flowing in the first detecting line 110, by making the electric current flow from the first detecting line 110 in response to switching operation of the switch 22. The first line 103 is not connected to the room lamp 10 side from the fuse of at least a power supply passage 102. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
