发明公开
EP0441362A1 Optical disk recording/reproducing apparatus and a photoelectric conversion amplifier therefor
失效
OptischesGerätzur Aufzeichnung / Wiedergabe und photoelektrischerKonversionsverstärkerdafür。
- 专利标题: Optical disk recording/reproducing apparatus and a photoelectric conversion amplifier therefor
- 专利标题(中): OptischesGerätzur Aufzeichnung / Wiedergabe und photoelektrischerKonversionsverstärkerdafür。
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申请号: EP91101635.0申请日: 1991-02-06
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公开(公告)号: EP0441362A1公开(公告)日: 1991-08-14
- 发明人: Aoki, Kazuhiro , Edahiro, Yasuaki , Kurahashi, Akira
- 申请人: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 申请人地址: 1006, Oaza Kadoma Kadoma-shi, Osaka-fu, 571 JP
- 专利权人: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 当前专利权人: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 当前专利权人地址: 1006, Oaza Kadoma Kadoma-shi, Osaka-fu, 571 JP
- 代理机构: Dr. Elisabeth Jung Dr. Jürgen Schirdewahn Dipl.-Ing. Claus Gernhardt
- 优先权: JP27498/90 19900207
- 主分类号: G11B7/13
- IPC分类号: G11B7/13
摘要:
In a photoelectric conversion amplifier for converting a light signal into a voltage signal, a resistor (8) and a capacitor (9) connected in parallel with the resistor are provided between a non-inverted input terminal of a differential amplifier (10) and a reference voltage source terminal, and thereby an offset voltage of the differential amplifier (10) is eliminated and a frequency characteristic is improved to have a wideband.
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