Low power and high accuracy band gap voltage reference circuit

Details Low power and high accuracy band gap voltage reference circuit Low power and high accuracy band gap voltage reference circuit

2006-01-18

2009-08-25

Patel, Rajnikant B (Department: 2838)

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

C323S313000, C323S316000

Reexamination Certificate

active

07579822

ABSTRACT:
A band gap voltage reference circuit comprises a first band gap (BG) circuit that generates a first BG voltage potential. A second BG circuit includes a variable resistance and outputs a second BG voltage potential that is related to a value of said variable resistance. A calibration circuit communicates with said first and second BG circuits, adjusts said variable resistance based on said first BG voltage potential and said second BG voltage potential, and selectively shuts down said first BG circuit.

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