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1. 发明授权

US6034855A Method and apparatus for attenuation of, and damage protection from, high energy electromagnetic pulses 失效
标题翻译：用于衰减和损害高能电磁脉冲的方法和装置
公开(公告)号：US6034855A
公开(公告)日：2000-03-07
申请号：US866451
申请日：1997-05-30
申请人： John Daniel Bishop
发明人： John Daniel Bishop
IPC分类号： H02H7/22 , H02H9/02 , H02H9/00
CPC分类号： H02H9/021 , H02H7/228
摘要： A circuit is described which maintains the current flowing toward a main circuit within a prescribed limit, regardless of instantaneous voltage or current changes. The circuit includes elements that maintain the current flow in a path toward a main circuit within a prescribed limit by selectively changing the impedance presented in response to any instantaneous change in the voltage flowing toward the main circuit and by introducing into the path a voltage which opposes any such instantaneous change in the current flowing toward the main circuit. Elements may also be provided to protect the main circuit by disconnecting same from a cable leading thereto after signals on the cable have been analyzed and a determination has been made that a signal outside of predetermined upper and lower limit values has been coupled to the cable, for example, from a high altitude electromagnetic pulse. Elements may also be provided to periodically trip and reset the protective circuit before the line to the main circuit is opened, so that an operating mode of the protective circuit can be tested without interrupting the power to the main circuit.
摘要翻译：描述了一种电路，其保持电流在规定极限内流向主电路，而不管瞬时电压或电流变化。该电路包括通过选择性地改变响应于流向主电路的电压的任何瞬时变化而呈现的阻抗并且通过将与该电路相反的电压引入到该通路中的电压来维持在规定极限内通向主电路的电流的元件电流流向主电路的任何瞬时变化。还可以提供元件以通过在已经分析了电缆上的信号并且已经确定已经将预定的上限和下限值之外的信号耦合到电缆的情况下断开与引导到其的电缆的主电路来保护主电路，例如，从高空电磁脉冲。还可以提供元件以在主电路的线路断开之前周期性地跳闸和复位保护电路，使得可以测试保护电路的操作模式而不中断对主电路的电力。

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