Amplifier systems

Details Amplifier systems Amplifier systems

1978-01-04

1979-07-24

Mullins, James B.

Amplifiers

Modulator-demodulator-type amplifier

330207A, 330251, 332 41, H03F 338

Patent

active

041624556

ABSTRACT:
This invention relates to an amplifier system comprising two or more Class D amplifiers the outputs of which are associated with a common system output in a known manner. To avoid the appearance of spurious sidebands in the system output which are associated with the switching process of the amplifiers, separate clock pulse trains are applied to the Class D amplifiers, the separate clock pulse trains being interlaced to obtain cancellation of switching frequency ripple at the common system output.

REFERENCES:
patent: 3336538 (1967-08-01), Crowhurst
patent: 3579132 (1971-05-01), Ross
patent: 3585517 (1971-06-01), Herbert
patent: 3648186 (1972-03-01), Kahn
patent: 3740660 (1973-06-01), Davies

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