Up-down voltage regulator

Details Up-down voltage regulator Up-down voltage regulator

1982-11-22

1984-07-10

Wong, Peter S.

Electricity: power supply or regulation systems

In shunt with source or load

Using a three or more terminal semiconductive device

323266, 323303, G05F 156

Patent

active

044595379

ABSTRACT:
An up-down voltage regulator includes an up regulator followed by a series pass PNP transistor. The base of the PNP transistor is coupled to an unregulated voltage source. The up regulator is responsive to the voltage at the collector of the PNP transistor to control the emitter voltage of the PNP transistor for all values of the unregulated voltage source to bias the PNP transistor so as to establish and maintain the collector voltage of the PNP transistor at a desired regulated value.

REFERENCES:
patent: 3600667 (1971-08-01), Wynn
patent: 3886438 (1975-05-01), Bouman
patent: 4347474 (1982-08-01), Brooks et al.
M. Grossoni, "Transistorized Low-Power Power Plant for Telecommunication Systems", Conference: Intelec. '81, Third International Telecommunication Energy Conference, London, England, (19-21, May 1981), pp. 282-287.

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