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11. 发明申请

US20170025844A1 TWO-TRANSISTOR DEVICES FOR PROTECTING CIRCUITS FROM SUSTAINED OVERCURRENT 审中-公开
标题翻译：用于保护电流从保持过流的两个晶体管器件
公开(公告)号：US20170025844A1
公开(公告)日：2017-01-26
申请号：US15216758
申请日：2016-07-22
申请人： Symptote Technologies, LLC
发明人： Mark D. Creech
IPC分类号： H02H3/093
CPC分类号： H02H3/093 , H02H1/04 , H02H3/087
摘要： Two-transistor devices protect electrical circuits from sustained overcurrent conditions. Some cases provide normally-on depletion mode transistors biased into enhancement mode for lower impedance during normal current conditions, and then the transistors are biased into blocking depletion mode during sustained overcurrent conditions to block the current to the circuit. Optionally, the devices have only two terminals and require no auxiliary power to operate. Other cases provide protective circuitry for the transistors' gates, timing circuitry designed to ignore brief nuisance spikes, and/or timing circuitry to delay resetting the device until the current has returned to an acceptable level.
摘要翻译：双晶体管器件保护电路不受持续的过流条件影响。一些情况提供了在正常电流条件期间偏置到增强模式中用于较低阻抗的常导耗尽型晶体管，然后在持续的过电流条件期间晶体管被偏置成阻塞耗尽模式以阻断电流到电路。可选地，这些设备仅具有两个端子，并且不需要辅助电源来操作。其他情况为晶体管的栅极提供保护电路，设计用于忽略短路有害尖峰的定时电路和/或延迟复位器件的定时电路，直到电流恢复到可接受的水平。

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