发明申请
US20160134967A1 BIASING CIRCUIT FOR MICROPHONE AND MICROPHONE INCLUDING THE SAME
审中-公开
用于麦克风和麦克风的偏转电路，包括它们
- 专利标题： BIASING CIRCUIT FOR MICROPHONE AND MICROPHONE INCLUDING THE SAME
- 专利标题（中）： 用于麦克风和麦克风的偏转电路，包括它们
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申请号： US14813511申请日： 2015-07-30
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公开(公告)号： US20160134967A1公开(公告)日： 2016-05-12
- 发明人: Soon Myung KWON
- 申请人： HYUNDAI MOTOR COMPANY
- 专利权人： HYUNDAI MOTOR COMPANY
- 当前专利权人： HYUNDAI MOTOR COMPANY
- 优先权： KR10-2014-0156429 20141111
- 主分类号： H04R3/00
- IPC分类号： H04R3/00 ; H04R19/04 ; H04R19/00
摘要：
A microphone in accordance with an exemplary embodiment of the present invention includes a biasing circuit to provide a variable bias voltage to a sensor. The biasing circuit includes: a regulator which receives a reference voltage and a control voltage to output a variable voltage; a digital to analog converter which receives a digital control signal to provide the control voltage to the regulator; and a charge pump which receives the variable voltage output from the regulator to output a variable voltage that is higher than the variable voltage.
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