High efficiency power audio amplifiers comprising two amplifier

Details High efficiency power audio amplifiers comprising two amplifier High efficiency power audio amplifiers comprising two amplifier

1991-11-18

1993-03-16

Mottola, Steven

Amplifiers

Combined with automatic amplifier disabling switch means

381120, H03F 114

Patent

active

051948214

ABSTRACT:
The amplifier comprises a first and a second amplifier block of opposite phase driven by a single input signal and having its outputs connected to the two terminals of a load. It also comprises circuit means to disable one of the said amplifier blocks when the absolute value of the input signal is less than a predetermined threshold level. A passive feedback system capable of maintaining the amplifier gain constant is located between the aforesaid terminals of the load and the inputs to the two amplifier blocks.

REFERENCES:
patent: 3881058 (1975-04-01), Klauck
patent: 4330756 (1982-05-01), Moreau
patent: 4433306 (1984-02-01), Honda et al.
patent: 4517528 (1985-05-01), Tanaka et al.

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