Digital to analog converter with power amplification

Details Digital to analog converter with power amplification Digital to analog converter with power amplification

1977-01-31

1978-10-17

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

H03K 1305

Patent

active

041212053

ABSTRACT:
A power amplifier has an input terminal supplied with a PCM (pulse code modulated) signal and a plurality of power supplies, each producing a voltage weighted according to the order of bits of the PCM-code. Switching means are controlled by the PCM input signal to connect selective ones of the power supplies in series to a load in response to the PCM signal.

REFERENCES:
patent: 2916734 (1959-12-01), Spencer
patent: 2920217 (1960-01-01), House
patent: 2949600 (1960-08-01), Le May
patent: 2970308 (1961-01-01), Stringfellow
patent: 3426345 (1969-02-01), Kase
patent: 3898568 (1975-08-01), Barth
patent: 3967272 (1976-06-01), Sandford

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