Battery life extending technique for mobile wireless application

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail

Patent

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Details

455126, 330285, H04B 700

Patent

active

06148220&

ABSTRACT:
An operating voltage applied to a transmitter's power amplifier in a mobile wireless transceiver is dynamically controlled so as to improve the efficiency of the transmitter at all output power levels. In one embodiment, the bias current levels within the transmitter are also varied to optimize the efficiency of the transmitter at all output power levels. In a preferred embodiment, a highly efficient switching regulator is controlled by a control circuit to adjust the operating voltage and/or bias current for the power amplifier in the transmitter. The control circuit has as its input any of a variety of signals which reflect the actual output power of the transmitter, the desired output power, or the output voltage swing of the transmitter.

REFERENCES:
patent: 4760347 (1988-07-01), Li et al.
patent: 4994757 (1991-02-01), Bickley et al.
patent: 5081713 (1992-01-01), Miyazaki
patent: 5129098 (1992-07-01), McGirr et al.
patent: 5182527 (1993-01-01), Nakanishi et al.
patent: 5192919 (1993-03-01), Wieczorek
patent: 5251330 (1993-10-01), Chiba et al.
patent: 5337006 (1994-08-01), Miyazaki
patent: 5404586 (1995-04-01), Ishiguro
patent: 5422598 (1995-06-01), Maeda et al.
patent: 5446756 (1995-08-01), Mallinckrodt
patent: 5640691 (1997-06-01), Davis et al.
patent: 5659893 (1997-08-01), Enoki et al.
patent: 5678209 (1997-10-01), Srakovsky
patent: 5689815 (1997-11-01), Yamazaki et al.
patent: 5774797 (1998-06-01), Kawano et al.

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