Mobile radio communication apparatus adaptable to power supply v

Details Mobile radio communication apparatus adaptable to power supply v Mobile radio communication apparatus adaptable to power supply v

1997-05-22

1998-10-27

Vo, Nguyen

Telecommunications

Transmitter

Power control, power supply, or bias voltage supply

455115, H01Q 1112, H04B 104

Patent

active

058289534

ABSTRACT:
A mobile radio communication apparatus powered by a limited-capacity power supply includes a transmission amplifier producing a transmission output in accordance with command data from a base station. The driving voltage for the amplifier from the power supply may change due to the lapse of time. A memory stores control data for maintaining a desired operation of the amplifier with the dissipation current thereof minimized when the power supply voltage changes. The driving range of the amplifier is controlled in accordance with the stored control data.

REFERENCES:
patent: 4636741 (1987-01-01), Mitzlaff
patent: 4709404 (1987-11-01), Tamura et al.
patent: 4989260 (1991-01-01), Meade
patent: 5029298 (1991-07-01), Chiba et al.
patent: 5101507 (1992-03-01), Jung
patent: 5192919 (1993-03-01), Wieczorek
patent: 5239694 (1993-08-01), Toyoshima
patent: 5423077 (1995-06-01), Ueda

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