发明名称 |
Presence and direction of line current flow detector |
摘要 |
A Hall effect device is employed to monitor the presence and direction of line current flow. The output of the Hall effect device is fed to an amplifier having a known output level for a zero input. The output of the amplifier will increase or decrease dependent on the direction of the current flow. The output of the amplifier is monitored for change and direction of change of current flow.
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申请公布号 |
US4020294(A) |
申请公布日期 |
1977.04.26 |
申请号 |
US19760670312 |
申请日期 |
1976.03.25 |
申请人 |
INTERNATIONAL STANDARD ELECTRIC CORPORATION |
发明人 |
KITAJEWSKI, RYSZARD;SWEET, ANTHONY WILLIAM;DYER, MICHAEL PHILIP |
分类号 |
G01R19/14;G01R19/15;(IPC1-7):H04B3/46;H04M3/22 |
主分类号 |
G01R19/14 |
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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