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

2006-04-04

2006-04-04

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

07023194

ABSTRACT:
A band gap voltage reference circuit includes a high accuracy band gap (BG) circuit that generates a BG voltage potential VbgH. A low accuracy BG circuit includes a variable resistance and outputs a BG voltage potential VbgLthat is related to a value of the variable resistance. A calibration circuit communicates with the high and low accuracy BG circuits, adjusts the variable resistance based on a difference between the BG voltage potential VbgHand the BG voltage potential VbgL, and shuts down the high accuracy BG circuit when the BG voltage potential VbgLis approximately equal to the BG voltage potential VbgH.

REFERENCES:
patent: 4059793 (1977-11-01), Ahmed
patent: 4896094 (1990-01-01), Greaves et al.
patent: 5642037 (1997-06-01), Malherbe
patent: 5703475 (1997-12-01), Lee et al.
patent: 5949227 (1999-09-01), Bujanos
patent: 5955873 (1999-09-01), Maccarrone et al.
patent: 6124704 (2000-09-01), Annema
patent: 6150871 (2000-11-01), Yee
patent: 6204653 (2001-03-01), Wouters et al.
patent: 6335614 (2002-01-01), Ganti
patent: 6346802 (2002-02-01), Lasalandra et al.
patent: 6441595 (2002-08-01), Pelissier et al.
patent: 6765431 (2004-07-01), Coady
patent: 2218544 (1989-11-01), None

Affiliated with

Also associated with

Rating

Low power and high accuracy band gap voltage reference circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low power and high accuracy band gap voltage reference circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low power and high accuracy band gap voltage reference circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3543188