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구분 출원국
출원년도 ~ 키워드

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등록 가변이득증폭기

가변이득증폭기
이미지 확대
발명자
한선호, 유현규
출원번호
11497461 (2006.08.01)
공개번호
20070132513 (2007.06.14)
등록번호
7348849 (2008.03.25)
출원국
미국
협약과제
초록
A complementary metal oxide semiconductor (CMOS) variable gain amplifier has a wider decibel-linear gain variation characteristic with respect to a control voltage when a signal is amplified. The variable gain amplifier includes: a bias input circuit for supplying a current corresponding to a bias voltage; an operation region combination and feedback circuit connected to the bias input circuit and combining at least two amplifiers by feedback in response to a control voltage, each amplifier having a decibel-linear characteristic in saturation and triode regions of a complementary metal oxide semiconductor (CMOS); and a bias output circuit connected to the bias input circuit, and outputting bias current controlled by the operation region combination and feedback circuit.
KSP 제안 키워드
Bias output, Complementary metal-oxide-semiconductor(CMOS), Feedback Circuit, Gain variation, Linear characteristic, Metal-oxide(MOX), Operation Region, Oxide semiconductor, Variable Gain, Variable Gain Amplifier(VGA), bias current, bias voltage, control voltage, metal oxide semiconductor, variation characteristic