发明申请
- 专利标题： SENSING CIRCUIT AND METHOD OF DETECTING AN ELECTRICAL SIGNAL GENERATED BY A MICROPHONE
- 专利标题（中）： 感应电路及检测由麦克风产生的电子信号的方法
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申请号： US14850714申请日： 2015-09-10
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公开(公告)号： US20160173994A1公开(公告)日： 2016-06-16
- 发明人: Germano Nicollini
- 申请人： STMicroelectronics S.R.L.
- 优先权： ITTO2014A001054 20141216
- 主分类号： H04R19/04
- IPC分类号： H04R19/04
摘要：
A sensing circuit includes: a follower transistor, having a control terminal; a follower terminal for connection to a load; a bias-current generator, coupled to the follower terminal; and a feedback stage, configured to control the bias-current generator as a function of an input signal on the control terminal of the follower transistor.
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