发明公开
- 专利标题： METHOD AND ARRANGEMENT FOR DRIVING A MICROPHONE
- 专利标题（中）： 方法和一种控制麦克风
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申请号： EP10845362.2申请日： 2010-09-13
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公开(公告)号： EP2532090A1公开(公告)日： 2012-12-12
- 发明人: ERIKSSON, Sven-Äke
- 申请人： Research Electronics Leksand AB
- 申请人地址： Företagshuset 793 60 Siljansnäs SE
- 专利权人： Research Electronics Leksand AB
- 当前专利权人： Research Electronics Leksand AB
- 当前专利权人地址： Företagshuset 793 60 Siljansnäs SE
- 代理机构： Säfsten, Karin
- 优先权： SE1050120 20100205
- 国际公布： WO2011096868 20110811
- 主分类号： H03F3/183
- IPC分类号： H03F3/183 ; H03F3/45 ; H03F1/56 ; H04R19/04
摘要：
Disclosed is a differential microphone pre-amplifier circuit (120) for providing an amplified differential signal at a first (A) and a second (B) output terminal of the microphone pre- amplifier (120), including a first voltage controlled current generator (101), a second voltage controlled current generator (102) and a third voltage controlled current generator (103) all being configured to receive, amplify and convert a voltage signal generated by an associated microphone (110) to a current signal output.
公开/授权文献
- EP2532090B1 METHOD AND ARRANGEMENT FOR DRIVING A MICROPHONE 公开/授权日：2018-06-13
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