| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electric power supplying device for an internal combustion engine capable of shutting off a dark current from a battery to an engine control unit while the battery and an ECU are connected electrically. <P>SOLUTION: The electric power supplying device is equipped: with an alternator 1; the battery 3 connected with the alternator 1 through a regulated rectifier 2; the ECU 4 connected between connections of the alternator 1 in the regulated rectifier 2 and the battery 3; and a first FET 13 as a power shut-off means from the battery 3 to the ECU 4 when the internal combustion engine stops, installed in a position between the connections of the alternator 1 in the regulated rectifier 2 and the battery 3 and on the nearer side of the battery 3 than the position where the ECU 4 is connected. When the power generation of the alternator 1 is detected, a control circuit 2a of the regulated rectifier 2 controls the first FET 13 and permits the flow of a current between a drain and a source. <P>COPYRIGHT: (C)2012,JPO&INPIT |
