Constant-current regulated power circuit

Details Constant-current regulated power circuit Constant-current regulated power circuit

1990-08-14

1991-05-21

Wong, Peter S.

Electricity: power supply or regulation systems

Self-regulating

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

323314, G05F 320

Patent

active

050178580

ABSTRACT:
A constant current regulated power circuit comprises first and second voltage sources; a bias circuit connected to the first and second voltage sources for sending out a predetermined output voltage, the bias circuit having an output terminal; first and second resistors; and a transistor having a base connected to the output terminal of the bias circuit, an emitter connected to the first voltage source through the first resistor and to the second voltage source through the second resistor, respectively, and a collector operating as an output terminal.

REFERENCES:
patent: 4079308 (1978-03-01), Brown
patent: 4189671 (1980-02-01), Yuen
patent: 4399398 (1983-08-01), Wittlinger
patent: 4458201 (1984-07-01), Koen
patent: 4684880 (1987-08-01), Chan
patent: 4725770 (1988-02-01), Okutsu et al.
patent: 4736125 (1988-04-01), Yuen
patent: 4942369 (1990-07-01), Nakagawara et al.

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