Push-pull amplifier circuitry

Details Push-pull amplifier circuitry Push-pull amplifier circuitry

1975-08-15

1976-10-12

Mullins, James B.

Amplifiers

Signal feedback

Combined with control of bias voltage of signal amplifier

330 13, 330 15, 330 18, 330 19, 330 28, 330 30D, H03F 316

Patent

active

039861341

ABSTRACT:
A push-pull amplifier circuitry comprising: a first and a second FET (abbreviation of field effect transistor which will be used hereinafter) of an n-channel type, a third FET of a p-channel type with its gate and source connected to the gate of said first FET and to the source of said second FET respectively, a fourth FET of a p-channel type having a gate and a source connected to the gate of said second FET and to the source of said first FET, a positive voltage supply connected to the drain of said first FET and via a resistor to the drain of said second FET and, a negative voltage supply connected to the drain of said third FET and via another resistor to the drain of said fourth FET. This circuitry is suitable for use as an input stage or an interstage amplifier circuit such as a pre-driver of a multistage direct-coupled push-pull amplifier.

REFERENCES:
patent: 3914702 (1975-10-01), Giehweiler

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