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구분 출원국
출원년도 ~ 키워드

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등록 저전압 밴드갭 기준전압 발생기

저전압 밴드갭 기준전압 발생기
이미지 확대
발명자
김영호, 박성수
출원번호
11945708 (2007.11.27)
공개번호
20080136504 (2008.06.12)
등록번호
7808305 (2010.10.05)
출원국
미국
협약과제
초록
A low-voltage band-gap reference voltage bias circuit is provided. In the low-voltage band-gap reference voltage bias circuit, a proportional-to-absolute temperature (PTAT) current is copied to two nodes, respectively, to generate a first voltage having a negative slope with respect to temperature variation, and a second voltage having a positive slope with respect to temperature variation, and first and second elements having high impedances are serially connected to each other between the two nodes, such that the sum of the negative slope of the first voltage and the positive slope of the second voltage is zero and an average voltage between the two nodes is extracted to output the extracted result as a reference voltage. Accordingly, a stable reference voltage of 1V or lower regardless of a power supply voltage and temperature variation can be supplied.
KSP 제안 키워드
Absolute temperature, Average Voltage, Band gap, Bandgap Reference, Positive slope, Supply voltage, Temperature variations, Voltage band, Voltage bias circuit, bandgap reference voltage, bias circuit, low voltage, power supply, process-voltage-temperature(PVT), reference voltage, voltage bias