Audio amplifier circuit and method of operation

Details Audio amplifier circuit and method of operation Audio amplifier circuit and method of operation

1992-07-10

1993-09-14

Mullins, James B.

Amplifiers

Signal feedback

Amplifier in signal feedback path

330102, 330105, 381 96, 381121, H03F 134

Patent

active

052452964

ABSTRACT:
An audio amplifier circuit which improves the efficiency, performance and power in a loudspeaker system. The circuit includes a discriminator differential amplifier which senses the motional voltage from the moving coil of a loudspeaker. The output signal from the differential amplifier is processed by the circuit into a correction voltage which is combined with the drive voltage and applied to the input of the loudspeaker.

REFERENCES:
patent: 3889060 (1975-06-01), Goto et al.
patent: 5031221 (1991-07-01), Yokoyama

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