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구분 출원국
출원년도 ~ 키워드

상세정보

등록 고 임피던스 DC오프셋전압 생성기

고 임피던스 DC오프셋전압 생성기
이미지 확대
발명자
김이경, 권종기, 노태문, 조민형, 김종대, 양우석
출원번호
13531437 (2012.06.22)
공개번호
20130099868 (2013.04.25)
등록번호
9077287 (2015.07.07)
출원국
미국
협약과제
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