公开(公告)号：US6043636A

公开(公告)日：2000-03-28

申请号：US954637

申请日：1997-10-20

申请人： Marcel P. J. Gaudreau ,  Jean-Paul Dionne ,  Evgeny Holmansky

发明人： Marcel P. J. Gaudreau ,  Jean-Paul Dionne ,  Evgeny Holmansky

IPC分类号： H02M1/34 ,  H02M3/155 ,  G05F1/40 ,  H02M5/42

CPC分类号： H02M1/34 ,  H02M3/155 ,  H02M2001/342 ,  Y02B70/1491

摘要： A voltage transient suppression circuit includes a capacitor, a diode, and a voltage limiter. The negative terminal of the capacitor can be coupled to the negative terminal of a variable voltage circuit element (e.g., a switching device, a series impedance, or a load). The anode of the diode can be coupled to the positive terminal of the variable voltage circuit element, and the cathode of the diode is connected to the positive terminal of the capacitor. The voltage limiter is connected in parallel with the capacitor. When the voltage applied across the voltage limiter is above a predetermined voltage, current is allowed to conduct through the voltage limiter and a voltage potential drop across the voltage limiter is substantially independent of the current conducted therethrough. When the voltage applied across the voltage limiter is below the predetermined voltage, current is substantially prevented from passing through the voltage limiter.

摘要翻译： 电压瞬变抑制电路包括电容器，二极管和限压器。 电容器的负极可以耦合到可变电压电路元件（例如开关器件，串联阻抗或负载）的负极端子。 二极管的阳极可以耦合到可变电压电路元件的正极，二极管的阴极连接到电容器的正极。 电压限制器与电容并联。 当施加在电压限制器上的电压高于预定电压时，允许电流通过限压器导通，并且跨过限压器的电压电位差基本上与通过其限制的电流无关。 当施加在电压限制器上的电压低于预定电压时，电流基本上被阻止通过限压器。