Circuit providing improved rejection to power supply variations

Details Circuit providing improved rejection to power supply variations Circuit providing improved rejection to power supply variations

1979-07-02

1981-04-14

Pellinen, A. D.

Electricity: power supply or regulation systems

Self-regulating

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

G05F 320

Patent

active

042622441

ABSTRACT:
A current drive source circuit for providing current drive to a plurality of loads coupled thereto for reducing effects of power supply variations on the loads. The current drive source includes a reference circuit for producing a reference bias potential for biasing a load transistor. An internal current source comprising a split dual-collector PNP transistor provides collector current to the load transistor and also a feedback signal path to the emitter of the load transistor, which emitter electrode is coupled via a resistor to a ground terminal. The output of the current drive source is provided at the base electrode of the split dual-collector transistor.

REFERENCES:
patent: 3999140 (1976-12-01), Radovsky
patent: 4110677 (1978-08-01), Boronkay et al.

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