Constant voltage generating circuit

Details Constant voltage generating circuit Constant voltage generating circuit

2006-07-04

2006-07-04

Callahan, Timothy P. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S540000, C323S313000

Reexamination Certificate

active

07071766

ABSTRACT:
A constant voltage generating circuit which uses a band gap reference circuit to produce a constant voltage and which is effective at reducing driving voltage and noise. The voltage generating circuit has a plurality of first bipolar transistors including n first bipolar transistors, each having an emitter area. The voltage generating circuit also includes a plurality of second bipolar transistors including n second bipolar transistors. Each of the n second bipolar transistors has an associated emitter area greater than the emitter area of each of the plurality of the first bipolar transistors. The constant voltage generating circuit produces a constant output voltage that is independent of temperature and the number of first and second transistors.

REFERENCES:
patent: 4896094 (1990-01-01), Greaves et al.
patent: 4897595 (1990-01-01), Holle
patent: 5325045 (1994-06-01), Sundby
patent: 5796244 (1998-08-01), Chen et al.
patent: 6362612 (2002-03-01), Harris
patent: 6765431 (2004-07-01), Coady
patent: 6-043956 (1994-02-01), None
patent: 8-044449 (1996-02-01), None
patent: WO 92/06424 (1992-04-01), None

Affiliated with

Also associated with

Rating

Constant voltage generating 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 Constant voltage generating circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constant voltage generating circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3592336