Switching system for selectively enabling electrical power to be applied
to plural loads
    1.
    发明授权
    Switching system for selectively enabling electrical power to be applied to plural loads 失效
    用于选择性地使能量被施加到多个负载的开关系统

    公开(公告)号:US5289043A

    公开(公告)日:1994-02-22

    申请号:US558908

    申请日:1990-07-27

    摘要: There is described a semiconductor switch device having two semiconductor components, the first component receiving drive signals from the second. The first component contains either a single power bipolar switch element for single ended control of the energisation of a load or a bridge of such elements enabling energisation of a load with different polarities. The switch elements, which may be transistors or darlington multiple transistors, have voltage dropping elements connected in the leads to their control bases, so that the drive signals from the second component can be produced by low impedance connection to one or the other supply conductor, thereby keeping the power dissipation of the second component to a low value. The voltage dropping elements may be a series resistor or a constant current circuit. The first component may have a temperature sensitive member, such as a diode, for diverting current from the control base of the or each switching element to terminate its conduction if the temperature of the component becomes too high. The switch device is used in a switching system for a motor vehicle, for example, where central control is required of a plurality of loads at various locations. A central controller transmits coded control signals to local controllers which direct the control signals to the correct switch devices. Status signals representing the functional states of the loads and the outputs of local sensors are sent to the central controller to produce there a corresponding display.

    摘要翻译: 描述了具有两个半导体部件的半导体开关器件,第一部件接收来自第二部件的驱动信号。 第一个部件包含单功率双极开关元件,用于单端控制负载的通电或这种元件的桥,使得能够使具有不同极性的负载通电。 可以是晶体管或达林顿多晶体管的开关元件具有连接到引线中的电压降元件到它们的控制基极,使得可以通过与一个或另一个电源导体的低阻抗连接来产生来自第二部件的驱动信号, 从而将第二部件的功率损耗保持在低值。 降压元件可以是串联电阻器或恒流电路。 第一部件可以具有诸如二极管的温度敏感部件,用于如果部件的温度变得过高,则用于将电流从该开关元件或每个开关元件的控制基极转移以终止其导通。 开关装置用于机动车辆的切换系统中,例如需要在各种位置的多个负载进行中央控制的场合。 中央控制器将编码的控制信号发送到将控制信号引导到正确的开关装置的本地控制器。 表示负载的功能状态和本地传感器的输出的状态信号被发送到中央控制器以产生相应的显示。

    Semiconductor switch
    2.
    发明授权
    Semiconductor switch 失效
    半导体开关

    公开(公告)号:US4977476A

    公开(公告)日:1990-12-11

    申请号:US164366

    申请日:1988-03-04

    摘要: There is described a semiconductor switch device having two semiconductor components, the first component receiving drive signals from the second. The first component contains either a single power bipolar switch element for single ended control of the energization of a load or a bridge of such elements enabling energization of a load with different polarities. The switch elements, which may be transistors or darlington multiple transistors, have voltage dropping means connected in the leads to their control bases, so that the drive signals from the second component can be produced by low impedance connection to one or other supply connductor, thereby keeping the power dissipation of the second component to a low value. The voltage dropping means may be a series resistor or a constant current circuit. The first component may have temperature sensitive means, such as a diode, for diverting current from the control base of the or each switching element to terminate its conduction if the temperature of the component becomes too high. The switch device is used in a switching system for a motor vehicle, for example, where central control is required of a plurality of loads at various locations. A central controller transmits coded control signals to local controllers which direct the control signals to the correct switch devices. Status signals representing the functional states of the loads and the outputs of local sensors are sent to the central controller to produce there a corresponding display.

    摘要翻译: 描述了具有两个半导体部件的半导体开关器件,第一部件接收来自第二部件的驱动信号。 第一个组件包含单功率双极开关元件,用于单端控制负载的通电或这些元件的桥,使得能够使具有不同极性的负载通电。 可以是晶体管或达林顿多晶体管的开关元件具有连接在引线中的电压下降装置到它们的控制基座,使得来自第二部件的驱动信号可以通过与一个或其它电源连接器的低阻抗连接来产生,由此 将第二组件的功耗保持在较低的值。 降压装置可以是串联电阻器或恒流电路。 第一部件可以具有诸如二极管的温度敏感装置,用于如果部件的温度变得过高,则从该开关元件或每个开关元件的控制基极转移电流以终止其导通。 开关装置用于机动车辆的切换系统中,例如需要在各种位置的多个负载进行中央控制的场合。 中央控制器将编码的控制信号发送到将控制信号引导到正确的开关装置的本地控制器。 表示负载的功能状态和本地传感器的输出的状态信号被发送到中央控制器以产生相应的显示。