등록 REFERENCE BIAS GENERATING CIRCUIT

이미지 확대

REFERENCE BIAS GENERATING CIRCUIT

발명자

Young Ho Kim, Yun Je Hoon

출원번호

12507127 (2009.07.22)

공개번호

20100141344 (2010.06.10)

등록번호

7944283 (2011.05.17)

출원국

UNITED STATES

협약과제

08MR4300, Study on Electromagnetic Compatibility for Protecting Electromagnetic Environment in Ubiquitous Society, Yun Je Hoon

초록

A reference current bias circuit includes a self-bias circuit configured to provide a bias current to an amplifier; a basic bandgap circuit coupled to inputs of the amplifier; a startup circuit configured to support an initial operation of the amplifier; a temperature compensator configured to include a first mirroring unit for mirroring current according to a positive temperature coefficient characteristic from the basic bandgap circuit; and a second mirroring unit for mirroring current according to a negative temperature coefficient characteristic from the basic bandgap circuit, and to provide a reference current by combining the current of the first mirroring unit and the current of the second mirroring unit; and a reference current mirroring unit configured to generate reference current biases based on the reference current from the temperature compensator.

KSP 제안 키워드

Negative temperature coefficient(NTC), Positive temperature coefficient, Reference bias, Reference current, Temperature Coefficient, bias circuit, bias current, self-bias