Reel motor preamplifier

Details Reel motor preamplifier Reel motor preamplifier

1978-11-20

1979-12-04

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including push-pull amplifier

330 84, 330293, 330295, H03F 320, H03F 368

Patent

active

041774337

ABSTRACT:
A high voltage/high current circuitry includes a push-pull voltage amplification stage connected in tandem with a parallel connected push-pull current amplification stage. For the voltage amplification stage a pair of bipolar operational amplifiers are connected in parallel and operate in a push-pull manner. A pair of switching means are positioned at the output of each of the bipolar operational amplifiers while the outputs of the amplifiers are connected to the inputs through a current gain regulating means, an isolation means and a voltage divider means.

REFERENCES:
patent: 3486124 (1969-12-01), Eisenberg
patent: 3501712 (1970-03-01), Webb
patent: 3675141 (1972-07-01), Adams
patent: 3745477 (1973-07-01), Freeburn
patent: 3808545 (1974-04-01), Stanley
patent: 3939435 (1976-02-01), Suzuki
Elektor, "Symmetrical Power Amp.," vol. 2, No. 7-8, pp. 758-759, Jul.-Aug. 1976.

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