Digital controlled low frequency power amplifier

Details Digital controlled low frequency power amplifier Digital controlled low frequency power amplifier

1976-02-25

1977-09-06

Beha, Jr., William H.

Electric power conversion systems

Current conversion

Including an a.c.-d.c.-a.c. converter

322 90, H02M 545

Patent

active

040470903

ABSTRACT:
An improved digital-controlled power amplifier for low frequency, high power applications. The circuit consists of an alternator with stator windings rewound in a binary sequence for generation of primary power, whereupon pulsed semi-conductive controlled rectifiers are digitally controlled to turn on selected binary combinations of the stator output voltages for summation to produce an output voltage of selected amplitude versus duration; and further, the summed voltage output is switched by a polarity switching bridge to enable generation of a bi-polar output to the circuit load.

REFERENCES:
patent: 3246231 (1966-04-01), Clarke
patent: 3514688 (1970-05-01), Martin
patent: 3654537 (1972-04-01), Coffey
patent: 3971976 (1976-07-01), Baker

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