发明名称 |
METHOD AND ARRANGEMENT FOR DRIVING A MICROPHONE |
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. |
申请公布号 |
WO2011096868(A1) |
申请公布日期 |
2011.08.11 |
申请号 |
WO2010SE50974 |
申请日期 |
2010.09.13 |
申请人 |
RESEARCH ELECTRONICS LEKSAND AB;SVEN-AAKE, ERIKSSON |
发明人 |
SVEN-AAKE, ERIKSSON |
分类号 |
H03F3/183;H03F1/56;H03F3/45;H04R19/04 |
主分类号 |
H03F3/183 |
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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