Hybrid high direct current circuit interrupter
    1.
    发明授权
    Hybrid high direct current circuit interrupter 失效
    混合高直流电路断路器

    公开(公告)号:US5793586A

    公开(公告)日:1998-08-11

    申请号:US736752

    申请日:1996-10-25

    IPC分类号: H01H9/54 H01H33/59 H02H3/00

    CPC分类号: H01H33/596 H01H9/541

    摘要: A device and a method for interrupting very high direct currents (greater than 100,000 amperes) and simultaneously blocking high voltages (greater than 600 volts). The device utilizes a mechanical switch to carry very high currents continuously with low loss and a silicon controlled rectifier (SCR) to bypass the current around the mechanical switch while its contacts are separating. A commutation circuit, connected in parallel with the SCR, turns off the SCR by utilizing a resonant circuit to divert the SCR current after the switch opens.

    摘要翻译: 一种用于中断非常高的直流电流(大于100,000安培)并同时阻断高电压(大于600伏)的装置和方法。 该器件利用机械开关以低损耗连续携带非常高的电流和可控硅整流器(SCR),以绕过机械开关的电流,同时其触点分离。 与SCR并联连接的换向电路通过利用谐振电路在开关断开之后转移SCR电流来关断SCR。

    Ripple gate drive circuit for fast operation of series connected IGBTs
    2.
    发明授权
    Ripple gate drive circuit for fast operation of series connected IGBTs 失效
    纹波栅极驱动电路,用于串联IGBT的快速操作

    公开(公告)号:US06946885B1

    公开(公告)日:2005-09-20

    申请号:US10440225

    申请日:2003-05-19

    摘要: A ripple gate drive circuit includes a plurality of transistors having their power terminals connected in series across an electrical potential. A plurality of control circuits, each associated with one of the transistors, is provided. Each control circuit is responsive to a control signal and an optical signal received from at least one other control circuit for controlling the conduction of electrical current through the power terminals of the associated transistor. The control circuits are responsive to a first state of the control circuit for causing each transistor in series to turn on sequentially and responsive to a second state of the control signal for causing each transistor in series to turn off sequentially.

    摘要翻译: 纹波栅极驱动电路包括多个晶体管,它们的电源端子跨电势串联连接。 提供了与晶体管之一相关联的多个控制电路。 每个控制电路响应于从至少一个其他控制电路接收的控制信号和光信号,以控制通过相关晶体管的电源端的电流的导通。 控制电路响应控制电路的第一状态,使串联的每个晶体管依次导通,并且响应控制信号的第二状态,使得串联的每个晶体管顺序地关断。