Power amplifier

Details Power amplifier Power amplifier

1984-03-21

1985-12-24

Mullins, James B.

Amplifiers

Hum or noise or distortion bucking introduced into signal...

330 10, 330 84, 330146, 330267, 330297, H03F 132

Patent

active

045609462

ABSTRACT:
A power amplifier with a low distortion and a high power efficiency includes a first amplifier of the low distortion type for being powered by a first voltage source to amplify an input signal thereto to apply an output signal to a first terminal, and a second amplifier of the high power efficiency type for being powered by a second voltage source to amplify the input signal to apply an output signal to a second terminal. A load is connected between the first and second terminals. The output voltage of the second voltage source is greater than that of the first voltage source. A first feedback path is provided for feeding back the output signal of the first amplifier to an input thereof. A second feedback path is provided for feeding back the output signal of the second amplifier to the input of the first amplifier.

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