Amplifiers – Modulator-demodulator-type amplifier
Patent
1975-04-16
1976-10-26
Mullins, James B.
Amplifiers
Modulator-demodulator-type amplifier
330 13, 330 17, 330 22, 330 28, H03F 326
Patent
active
039886913
ABSTRACT:
A power amplifier circuit including a low power output general purpose operational amplifier. The circuit provides an output voltage swing far greater in magnitude than the output voltage swing of the operational amplifier and with a faster response than the slew rate of the operational amplifier. The circuit, which is complementary, includes voltage dividers which couple the output of the operational amplifier to constant current mode driver transistors. Power transistors amplify the output of the constant current mode transistors to provide a high power low distortion output.
REFERENCES:
patent: 3553599 (1971-01-01), Hayamizy
patent: 3631357 (1971-12-01), Hadley
Wade, "IC Driver For Power Amplifier," Wireless World, Nov. 1969, p. 530.
Mullins James B.
Shih Kelvin
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