| 发明名称 |
Alternating voltage level detecting apparatus |
| 摘要 |
A voltage level detector which detects when a periodic waveform voltage exceeds a predetermined value for a predetermined time and upon detection produces an output, this output being cancelled, after a predetermined delay, if detection ceases. The drop off/pick up ratio of the detector may be reduced by providing feedback from the output.
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| 申请公布号 |
US4079326(A) |
申请公布日期 |
1978.03.14 |
| 申请号 |
US19760747405 |
申请日期 |
1976.12.03 |
| 申请人 |
THE GENERAL ELECTRIC COMPANY LIMITED |
发明人 |
WILLIAMS, ANTHONY;NEWBOULD, ADRIAN ORTON |
| 分类号 |
G01R19/165;H02H3/20;H03K3/033;(IPC1-7):H03K1/18;H03K5/15 |
主分类号 |
G01R19/165 |
| 代理机构 |
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