Distortion-free amplifiers

Details Distortion-free amplifiers Distortion-free amplifiers

1975-01-10

1976-07-20

Mullins, James B.

Amplifiers

Signal feedback

In cascade amplifiers

330 28, 330 84, 330103, 330105, 330124R, 330149, 330151, H03F 134

Patent

active

039709531

ABSTRACT:
A distortion-free amplifier for electric signals has a high-quality low-power amplifier-section. In addition there is a high-power amplifier-section which delivers the majority of the current to the load. A feedback signal is derived which is a measure of the output current of the high-power section and not the low-power section. The feedback signal is applied to the inputs of both amplifier-sections negatively in an amount such as to remove from the combined output currents in the load any distortion occurring in the contribution from the high-power section.

REFERENCES:
patent: 2751442 (1956-06-01), Ketchledge

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