发明名称 |
FAULT DETECTOR FOR A TIP AND RING CIRCUIT, A METHOD OF PROTECTING SUCH A CIRCUIT AND A POWER SUPPLY INCLUDING THE FAULT DETECTOR |
摘要 |
A fault detector for use with a telephone wire-pair having a return conductor and an output conductor, a method of protecting a telecommunications network including the telephone wire-pair and a power supply for the telecommunications network. In one embodiment, the fault detector includes (1) a passive sensor coupled between Earth and the wire-pair to detect a ground fault thereon, (2) an amplifier having inputs coupled across the passive sensor and configured to characterize the ground fault in terms of a value and (3) a controller configured to receive the value via an output of the amplifier and compare the value to a threshold to determine if the ground fault exceeds a safety limit.
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申请公布号 |
US2008243402(A1) |
申请公布日期 |
2008.10.02 |
申请号 |
US20080058437 |
申请日期 |
2008.03.28 |
申请人 |
LINEAGE POWER CORPORATION |
发明人 |
RENE RAYMOND;GUTHRIE STEPHEN C.;SCARIA JACOB |
分类号 |
G01R31/14;G01R31/00 |
主分类号 |
G01R31/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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