Push-pull amplifier

Details Push-pull amplifier Push-pull amplifier

1979-10-12

1981-11-10

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including push-pull amplifier

330272, H03F 330

Patent

active

043001033

ABSTRACT:
A push-pull amplifier, having a first and a second transistor of the same conductivity type, whose collector-emitter paths are included in series between two power-supply terminals, the emitter electrode of the first transistor being connected to the collector electrode of the second transistor and to an output terminal, and the base electrode of the first transistor being connected to an input terminal, is improved in respect of its linearity, temperature dependence and bandwidth by measuring the base-emitter voltage of the first transistor with the aid of a series connection of a semiconductor junction and a resistor and by applying said voltage with opposite a.c. component to the base-emitter junction of the second transistor via a coupling circuit.

REFERENCES:
patent: 3855540 (1974-12-01), Leidich

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