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등록 PVT 변화에 둔감한 밴드갭 기준 전압 발생기

PVT 변화에 둔감한 밴드갭 기준 전압 발생기
이미지 확대
발명자
조영균, 이광천, 정재호
출원번호
14098989 (2013.12.06)
공개번호
20140159700 (2014.06.12)
등록번호
8791685 (2014.07.29)
출원국
미국
협약과제
12MI1300, 차세대 이동통신 기지국용 Class-S 전력증폭기 기술 연구, 정재호
초록
Disclosed is a bandgap reference voltage generator insensitive to changes of process, voltage, and temperature. A bandgap reference voltage generator may detect current having characteristic of CTAT and current having characteristic of PTAT which flow in a current compensation part included in an amplification part, and provide body voltage to one of two input transistors included in the amplification part in response to ratio of the two currents when the ratio is different from the preconfigured reference value. Thus, characteristics according to changes of parameters of elements and change of offset of the amplification part due to changes of PVT may be enhanced, and a characteristic of power supply rejection ratio (PSRR) may be enhanced.
KSP 제안 키워드
Bandgap Reference, Current compensation, Power supply rejection(PSR), Reference value, Rejection ratio, bandgap reference voltage, power supply, power supply rejection ratio, reference voltage, voltage generator
패밀리
 
패밀리 특허 목록
구분 특허 출원국 KIPRIS
등록 밴드갭 기준전압 발생기 대한민국 KIPRIS