Power amplifier module with distortion compensation

Details Power amplifier module with distortion compensation Power amplifier module with distortion compensation

2006-06-27

2006-06-27

Mottola, Steven J. (Department: 2817)

Amplifiers

Signal feedback

Plural amplifier channels

Reexamination Certificate

active

07068099

ABSTRACT:
The invention relates to a power amplifier module comprising a first amplifier2having a first front-end4and a first backend amplifier stage5and a second amplifier3having a second front-end6and a second backend amplifier stage7, the first amplifier and the second amplifier being arranged in a Bridge Tied Load (BTL) configuration with feedback over the load,characterized in thatthe first and the second backend amplifier stages having point symmetrical transfer functions with respect to the origin,the input current i1of the first backend amplifier stage being substantially equal to the input current i2of the second backend amplifier stage.

REFERENCES:
patent: 4414514 (1983-11-01), Seki et al.
patent: 4433306 (1984-02-01), Honda et al.

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