发明名称 |
Circuit arrangement comprising an amplifier connected to an opto-electrical transducer |
摘要 |
A circuit arrangement comprises an amplifier that has an input connected to an opto-electrical transducer and a gain which is controllable with the assistance of a control voltage. In order to achieve a great dynamic range given a constant operating point of the amplifier, the drain-source path of a field effect transistor, a feedback path includes a capacitor, and the input of the amplifier is connected to the output of a comparator that compares the output voltage of the amplifier to a reference voltage. The circuit arrangement can be advantageously employed in optical transmission equipment of PCM technology.
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申请公布号 |
US4939475(A) |
申请公布日期 |
1990.07.03 |
申请号 |
US19890407885 |
申请日期 |
1989.09.15 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
PRASSE, KARL-HEINZ;DANZER, HERMANN |
分类号 |
H03F3/08;H03G1/00;H03G3/20;H04B10/158 |
主分类号 |
H03F3/08 |
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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