Current source with low temperature coefficient

Details Current source with low temperature coefficient Current source with low temperature coefficient

1990-10-19

1992-04-07

Sterrett, Jeffrey

Electricity: power supply or regulation systems

Self-regulating

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

323314, 323907, G05F 316

Patent

active

051031590

ABSTRACT:
The disclosure concerns integrated circuits. More particularly, a method is disclosed for making a constant current source, in these circuits, that is stable as a function of the temperature and the supply voltage of the integrated circuit. It is proposed to make a stable current source in using two parallel-mounted transistors, one of which is controlled by a bandgap type of reference voltage while the other is controlled by a Wilson mirror. The addition of the currents of the two transistors gives a current that is far more stable as a function of temperature than the individual currents in each of the transistors.

REFERENCES:
patent: 4325018 (1982-04-01), Schade, Jr.
patent: 4443753 (1984-04-01), McGlinchey
patent: 4525663 (1985-06-01), Henry
patent: 4849684 (1989-07-01), Sonntag et al.
patent: 4935690 (1990-06-01), Yan
IEEE Journal of Solid State Circuits, vol. SC-8, No. 3, Jun. 1973, pp. 222-226, K. E. Kuijk, "A Precision Reference Voltage Source".

Affiliated with

Also associated with

Rating

Current source with low temperature coefficient does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Current source with low temperature coefficient, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current source with low temperature coefficient will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1897766