Current source regulator

Details Current source regulator Current source regulator

1989-12-18

1990-09-18

Wong, Peter S.

Electricity: power supply or regulation systems

Self-regulating

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

323317, 323351, G05F 322

Patent

active

049581228

ABSTRACT:
A current source regulator is responsive to an enable signal and provides at least one output current of predetermined magnitude proportional to absolute temperature. The enable signal biases a first transistor for supplying current through its collector-emitter conduction path to the common base of a string of PNP transistors, the latter of which provide the output current. The current flowing in one of the PNP transistors flows through a regulating feedback circuit, the output of which regulates the base voltage of the first transistor to control the base voltage of the PNP transistors for maintaining the current flowing through the regulating feedback circuit at the predetermined value proportional to absolute temperature.

REFERENCES:
patent: 4437023 (1984-03-01), Gill, Jr.
patent: 4450366 (1984-05-01), Malhi et al.
patent: 4584520 (1986-04-01), Vinn
patent: 4605892 (1986-08-01), Seevinck et al.
patent: 4683414 (1987-07-01), Moore
patent: 4733163 (1988-03-01), Miller
patent: 4792750 (1988-12-01), Yan
patent: 4810902 (1989-03-01), Storti et al.
patent: 4918370 (1990-04-01), Botti et al.

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