发明名称 Signal loss detector for three phase circuit
摘要 A three-phase rectifier utilizes three feedback controlled ferroresonant regulators to convert a three-phase signal into a regulated DC voltage. A monitoring circuit is included which responds to a signal loss at any input phase to actuate an alarm signal.
申请公布号 US4159514(A) 申请公布日期 1979.06.26
申请号 US19770852150 申请日期 1977.11.16
申请人 BELL TELEPHONE LABORATORIES INC 发明人 KAKALEC, ROBERT J
分类号 H02H3/253;H02M7/06;(IPC1-7):H02M1/18;H02M7/02 主分类号 H02H3/253
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