Synchro power buffer amplifier

Details Synchro power buffer amplifier Synchro power buffer amplifier

1978-10-12

1980-04-01

Mullins, James B.

Amplifiers

Signal feedback

Plural amplifier channels

330124R, 330166, 330196, H03F 134, H03F 368

Patent

active

041963970

ABSTRACT:
A synchro buffer amplifier is provided which uses two matched amplifiers respectively connected to the primary windings of two transformers. Two input leads are respectively connected to the inputs of the two amplifiers and a third input lead is grounded. The secondary windings of the two transformers are connected in series, and three output leads are respectively connected to the other sides of the two secondary windings and to the common secondary connection. Direct feedback is provided for each amplifier. Any circuit unbalance is compensated by the insertion of a low value choke in the common transformer secondary connection. Three capacitors are connected across the respective output leads partially to tune the loads, and thereby to nullify to some extent the effects of heavy inductive loads so as to allow operation of the buffer amplifier over a wider range of loads than would otherwise be possible.

REFERENCES:
patent: 3678593 (1972-07-01), Baker et al.

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