Bias controller for decreasing bias current supplied to amplifie

Details Bias controller for decreasing bias current supplied to amplifie Bias controller for decreasing bias current supplied to amplifie

1996-10-24

1998-08-25

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

327 62, 327362, 327538, H03K 508

Patent

active

057986657

ABSTRACT:
A bias current controlling circuit minimizes the power consumption of a high-frequency power amplifier incorporated in a battery powered portable telephone by controlling a bias current supplied to the high-frequency power amplifier in such a manner that an output signal of the high-frequency power amplifier increases the distortion as large in an allowable range as possible, because the bias current is inversely proportional to the magnitude of the distortion.

REFERENCES:
patent: 3641414 (1972-02-01), Thompson
patent: 4532477 (1985-07-01), Green, Jr. et al.
patent: 4987384 (1991-01-01), Yamanouchi et al.
patent: 5412692 (1995-05-01), Uchida
patent: 5477185 (1995-12-01), Jouen
patent: 5483191 (1996-01-01), Blodgett

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