| 摘要 |
PROBLEM TO BE SOLVED: To provide an electromagnetic load control device capable of driving a driver for an injector at a high speed with a reduced current.SOLUTION: A VH high-side drive MOS 15 is disposed at upstream of an electromagnetic load 26, and discharges electric charge accumulated at the time of increase of a load voltage by a step-up conversion circuit 4. A VB high-side drive MOS 19 is disposed upstream of the electromagnetic load 16, and discharges electric charge accumulated at the time of increase of a load voltage with a power supply voltage. A low-side drive MOS 23 is disposed downstream of an electromagnetic load, and discharges electric charge accumulated at the time of increase of a load voltage by a voltage stepup circuit. An injector driver control means 11 performs discharge with the VH high-side drive MOS 15 and the low-side drive MOS 23, and if a current equal to or higher than a first peak current value Ip is detected, performs discharge by using the VB high-side drive MOS 19. |
