Means for reducing current-gain modulation due to differences in

Details Means for reducing current-gain modulation due to differences in Means for reducing current-gain modulation due to differences in

1979-12-19

1981-08-11

Beha, Jr., William H.

Electricity: power supply or regulation systems

Self-regulating

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

323267, G05F 156

Patent

active

042836735

ABSTRACT:
In a circuit including a transistor pair feeding separate loads at different load voltages, current gain modulation or Early effect is avoided by employing an operational amplifier to maintain the collector-base voltages of the transistors equal and thereby maintain their alpha current gains equal.

REFERENCES:
patent: 3510695 (1970-05-01), Lauper
patent: 3925718 (1975-12-01), Wittlinger
patent: 4087758 (1978-05-01), Hareyama
patent: 4150309 (1979-04-01), Tokuda
patent: 4177417 (1979-12-01), Henry et al.

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