Electromagnetic solenoid drive apparatus in a vehicle
    1.
    发明授权
    Electromagnetic solenoid drive apparatus in a vehicle 失效
    车辆中的电磁螺线管驱动装置

    公开(公告)号:US4998177A

    公开(公告)日:1991-03-05

    申请号:US330038

    申请日:1989-03-29

    CPC分类号: H01H47/22 H01H47/10

    摘要: An electromagnetic solenoid drive apparatus for use in a vehicle for turning on an electromagnetic solenoid from a battery every time when a command switch is turned on comprises first and second resistors connected in series to each other on an electric line for flowing an electric current through the electromagnetic solenoid; a first switching element turned on in a state in which an output voltage of the battery is lower than a predetermined threshold voltage and short-circuiting both ends of the first resistor; a timer circuit operated for only a constant time in association with the turning-on operation of the command switch; and a second switching element turned on during only the operating period of the timer circuit and short-circuiting both ends of the second resistor.

    摘要翻译: 一种电磁螺线管驱动装置,用于车辆每当打开指令开关时从电池接通电磁螺线管的电磁螺线管驱动装置包括在用于使电流流动的电线上彼此串联连接的第一和第二电阻器 电磁螺线管; 第一开关元件在电池的输出电压低于预定阈值电压并使第一电阻器的两端短路的状态下导通; 定时器电路与指令开关的接通操作相关联地仅操作恒定时间; 第二开关元件仅在定时器电路的工作周期期间导通,并使第二电阻器的两端短路。