All FET fully integrated current reference circuit

Details All FET fully integrated current reference circuit All FET fully integrated current reference circuit

1995-06-07

1997-05-06

Wong, Peter S.

Electricity: power supply or regulation systems

Self-regulating

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

323907, 323314, G05F 320

Patent

active

056274564

ABSTRACT:
An integrated current reference circuit provides a current output with a predetermined temperature coefficient, suitably zero, to provide constant current over temperature variations. The circuit is formed of only Field Effect Transistors (FETs), allowing the circuit to be implemented using conventional CMOS fabrication techniques. A current mirror provides a reference current in both branches of the circuit. The output of the current mirror is coupled to a circuit providing an imbalance in resistance between the two branches, and an offsetting imbalance in voltages between the two branches, resulting in a reference current that has a predetermined temperature coefficient. An output current is provided which is proportional to the reference current and thus has the same temperature coefficient as the reference current.

REFERENCES:
patent: Re30586 (1981-04-01), Brokaw
patent: 4325018 (1982-04-01), Schade, Jr.
patent: 4352056 (1982-09-01), Cave et al.
patent: 4357571 (1982-11-01), Roessler
patent: 4390833 (1983-06-01), Tzeng
patent: 4769589 (1988-09-01), Rosenthal
patent: 4808847 (1989-02-01), Van Kessel
patent: 5117130 (1992-05-01), Shoji
patent: 5291123 (1994-03-01), Brown

Affiliated with

Also associated with

Rating

All FET fully integrated current 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 All FET fully integrated current reference circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and All FET fully integrated current reference circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2134904