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1. 发明授权

US07298601B2 Over-voltage protection for voltage regulator modules of a parallel power system 失效
标题翻译：并联电力系统稳压器模块的过电压保护
公开(公告)号：US07298601B2
公开(公告)日：2007-11-20
申请号：US11199644
申请日：2005-08-09
申请人： Kevin R. Covi , Raymond J. Harrington , Robert P. Makowicki , Steven G. Shevach , Dale F. Sorenson , Brian C. Tucker
发明人： Kevin R. Covi , Raymond J. Harrington , Robert P. Makowicki , Steven G. Shevach , Dale F. Sorenson , Brian C. Tucker
IPC分类号： H02H9/00 , H02H3/20
CPC分类号： H02M3/1584 , H02M1/32
摘要： A protection circuit for a parallel power system having at least two parallel coupled voltage regulators is disclosed. The protection circuit includes at least two isolation control circuits, each control circuit being coupled to a respective voltage regulator. Each isolation control circuit includes a current sense circuit for sensing current polarity at an output of the respective voltage regulator, and a controller for automatically isolating the respective voltage regulator when an over-voltage condition exists at an output of the parallel power system and a positive current polarity is sensed at the output of the respective voltage regulator. The at least two isolation control circuits isolate only a voltage regulator having positive current outflow during the over-voltage condition. In one embodiment, each isolation control circuit further includes an over-voltage detection circuit for detecting when the over-voltage condition exists at the output of the parallel power system.
摘要翻译：公开了一种具有至少两个并联耦合电压调节器的并联电力系统的保护电路。保护电路包括至少两个隔离控制电路，每个控制电路耦合到相应的电压调节器。每个隔离控制电路包括用于检测各个电压调节器的输出端的电流极性的电流检测电路，以及当在并联电力系统的输出端存在过电压状态时，用于自动隔离相应电压调节器的控制器，在相应的电压调节器的输出处感测出电流极性。至少两个隔离控制电路在过电压状态期间仅隔离具有正电流流出的电压调节器。在一个实施例中，每个隔离控制电路还包括过电压检测电路，用于检测并联电力系统的输出端何时存在过电压状态。

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