상세정보
등록 고 임피던스 DC오프셋전압 생성기
- 출원번호
- 13531437 (2012.06.22)
- 공개번호
- 20130099868 (2013.04.25)
- 등록번호
- 9077287 (2015.07.07)
- 출원국
- 미국
- 협약과제
- 11MB2100, 스마트and그린 빌딩용 자가충전 지능형 센서노드 플랫폼 핵심기술 개발, 김종대
- 초록
- Disclosed is a sound detecting circuit which includes a sensing unit configured to generate an AC signal in response to a sound pressure level of a sound signal; an amplification unit configured to amplify the AC signal; and a bias voltage generating unit configured to generate a bias voltage to be provided to the amplification unit. The bias voltage generating unit comprises a current source configured to provide a power current; and a current-voltage converting circuit configured to convert the power current into the bias voltage and to reduce a noise due to the power current.
- KSP 제안 키워드
- AC signal, Amplifier circuit, Converting circuit, Current source, Current-voltage, Pressure level, Sound pressure, Sound pressure level, bias voltage, generating unit, sensing unit, sound signal