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    • 1. 发明授权
    • Control circuit for an electronic switch, and a switch constituting an
application thereof
    • 电子开关的控制电路和构成其应用的开关
    • US5764088A
    • 1998-06-09
    • US948489
    • 1997-10-10
    • Jean-Paul LavievilleDidier Muller
    • Jean-Paul LavievilleDidier Muller
    • H03K17/08H03K17/082H02H3/20
    • H03K17/0822
    • The control path of the switch (I) comprises an input stage (T2, T1) having an input (H) coupled to the input (E) for the control signal and having its output coupled to the control electrode (G) of the switch (I). A protection circuit (D1, Z2) coupled between the load (C) and the control path includes a threshold effect component (Z2) and a decoupling element (D1). On being made conductive by the current that results from a surge generated in a circuit of the load (C), the protection circuit (D1, Z2) is coupled to the input (H) of said input stage (T2, T1) to act on said switch (I) in the same way as a control signal for the switch (I). In this manner, the control path prevents current in the load (C) from dropping off suddenly.
    • 开关(I)的控制路径包括输入级(T2,T1),其具有耦合到用于控制信号的输入(E)的输入(H),并且其输出耦合到开关的控制电极(G) (一世)。 耦合在负载(C)和控制路径之间的保护电路(D1,Z2)包括阈值效应分量(Z2)和去耦元件(D1)。 在由负载(C)的电路中产生的浪涌导致的电流导通时,保护电路(D1,Z2)耦合到所述输入级(T2,T1)的输入(H)以起作用 以与开关(I)的控制信号相同的方式在所述开关(I)上。 以这种方式,控制路径防止负载(C)中的电流突然脱落。