发明名称 |
Circuit for determining power of received light having superimposition of low frequency current |
摘要 |
A circuit for providing a signal representing light power received by a photodiode of an optical receiver having control means for controlling the bias voltage of the photodiode, wherein a constant amplitude low frequency current signal is superimposed on the photoelectric current of the photodiode, the resulting low frequency voltage signal being rectified and made available at an output terminal.
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申请公布号 |
US5004907(A) |
申请公布日期 |
1991.04.02 |
申请号 |
US19890407741 |
申请日期 |
1989.09.15 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
PRASSE, KARL-HEINZ |
分类号 |
G01J1/42;H04B10/04;H04B10/06;H04B10/08;H04B10/14;H04B10/26;H04B10/28 |
主分类号 |
G01J1/42 |
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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