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公开(公告)号：US5073848A
公开(公告)日：1991-12-17
申请号：US616965
申请日：1990-11-21
CPC分类号： G05F1/577 , H02H7/125 , H02J1/102 , H02J1/108 , Y10T307/391 , Y10T307/707
摘要： A power distribution system for supplying power to a plurality of point-to-load power supplies includes a plurality of bulk power supplies, each having a separate respective power distribution bus coupled at the output thereof. Each power distribution bus is coupled to each point-of-load power supply through an OR gate such that if one or more of the bulk power supplies fails, or if a fault occurs on one or more of the power distribution buses, then the point-of-load power supplies are unaffected because they continue to receive power from the other bulk power supplies via the respective OR gates. Furthermore, if a power distribution bus becomes short-circuited to ground, the current therein is limited electronically by the respective bulk power supply. Hence, the power distribution buses are protected against overcurrent without the need for a multitude of dc circuit breakers.
摘要翻译： 用于向多个点对点电源供电的配电系统包括多个大容量电源，每个大容量电源具有在其输出端耦合的单独的相应配电总线。 每个配电总线通过或门耦合到每个负载点电源，使得如果一个或多个大容量电源故障，或者如果在一个或多个配电总线上发生故障，则该点 负载电源不受影响，因为它们通过相应的或门继续从其他大容量电源接收电力。 此外，如果配电总线短路到地，则其中的电流由相应的大容量电源电子限制。 因此，配电总线不受过电流的保护，而不需要多个直流断路器。
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2.发明授权
公开(公告)号：US4811184A
公开(公告)日：1989-03-07
申请号：US192268
申请日：1988-05-10
CPC分类号： H02H7/1213 , H02M3/3376
摘要： In a dc-to-dc converter, alternating current or pulsating direct current produced by a cyclically switched power supply passes through semiconductor rectifiers or diodes. The rectifiers may be subject to unwanted conduction characteristics attributable to charge storage, which may result in cyclical current spikes during normal operation. A current sensor is coupled to sense a current which includes the cyclical spikes. A controllable attenuator or gain element couples the sensed current in a feedback loop to shut down the converter in the event of an overcurrent. To reduce the possibility of shut-down due to the normal cyclical current spikes, the attenuator or gain element is cyclically switched so as to reduce the sensitivity to the current spikes when they occur.
摘要翻译： 在直流 - 直流转换器中，由循环切换电源产生的交流或脉动直流通过半导体整流器或二极管。 整流器可能受到归因于电荷存储的不期望的导电特性的影响，这可能导致正常操作期间的周期性电流尖峰。 耦合电流传感器以感测包括周期性尖峰的电流。 可控制的衰减器或增益元件将感测到的电流耦合在反馈回路中以在过电流的情况下关闭转换器。 为了减少由于正常的周期性电流尖峰引起的关闭的可能性，衰减器或增益元件被循环切换，以便当它们发生时降低对电流尖峰的灵敏度。
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