On-chip reference current and voltage generating circuits

Details On-chip reference current and voltage generating circuits On-chip reference current and voltage generating circuits

2005-03-29

2005-03-29

Sterrett, Jeffrey (Department: 2838)

Electricity: power supply or regulation systems

Self-regulating

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

C323S314000, C323S907000

Reexamination Certificate

active

06873143

ABSTRACT:
Provided is an on-chip reference current generating circuit for generating a reference voltage that can be digitally calibrated and is substantially not affected by changes in temperature and/or supply voltage. The on-chip reference current generating circuit includes a summing circuit for receiving a first current having a negative temperature coefficient and a second current having a positive temperature coefficient, and outputting a third current based upon, is a sum of, the first and second currents; and a digital calibration circuit for calibrating the third current to be the reference current in response to a digital control signal. Using the on-chip reference current generating circuit, it is possible to precisely and digitally calibrate an offset between currents due to a change in temperature and/or supply voltage.

REFERENCES:
patent: 4928056 (1990-05-01), Pease
patent: 6181191 (2001-01-01), Paschal
patent: 6265857 (2001-07-01), Demsky et al.
patent: 6509726 (2003-01-01), Roh

Affiliated with

Also associated with

Rating

On-chip reference current and voltage generating circuits does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with On-chip reference current and voltage generating circuits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On-chip reference current and voltage generating circuits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3402945