| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solenoid valve driving device for a fuel injection control device in which the heating value of a switch means that is controlled when applying a power supply voltage to a solenoid valve is suppressed and the control of the solenoid valve can be improved. <P>SOLUTION: A control circuit 21 controls a switch 24 when applying the high voltage of a capacitor C to a solenoid valve 11 and performs switching control on a switch 25 when applying a power supply voltage Vb to the solenoid valve 11. The switch 25 is then connected, at the high potential side thereof, to the low potential side of an inductor 23a which is utilized for charging the capacitor C, and connected, at the low potential side thereof, to the solenoid valve 11. <P>COPYRIGHT: (C)2013,JPO&INPIT |
