发明授权
US4752745A Opto-isolated bias circuit for operating push-pull amplifiers in class A
and class AB modes
失效
用于在A类和AB类模式下操作推挽放大器的光隔离偏置电路
- 专利标题： Opto-isolated bias circuit for operating push-pull amplifiers in class A and class AB modes
- 专利标题（中）： 用于在A类和AB类模式下操作推挽放大器的光隔离偏置电路
-
申请号： US86932申请日： 1987-08-18
-
公开(公告)号： US4752745A公开(公告)日： 1988-06-21
- 发明人: Nelson S. Pass
- 申请人： Nelson S. Pass
- 申请人地址： CA Auburn
- 专利权人： Threshold Corporation
- 当前专利权人： Threshold Corporation
- 当前专利权人地址： CA Auburn
- 主分类号： H03F3/08
- IPC分类号： H03F3/08 ; H03F3/30 ; H03F3/26
摘要：
A high fidelity audio amplifier of the push-pull complementary symmetry type, featuring a feedback circuit with a bias sensing element connected to the output terminals of the output transistors. The feedback circuit includes a photoemitting element in optical communication with a photoconductive element which determines the relative voltage difference of the input terminals of the complementary symmetry output transistors.
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