Circuit and method for controlling the power used by a portable

Details Circuit and method for controlling the power used by a portable Circuit and method for controlling the power used by a portable

1997-10-31

1999-12-07

Cangialosi, Salvatore

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

455127, 455552, 455553, H04B 140

Patent

active

059998296

ABSTRACT:
A circuit and method for controlling the power associated with a power amplifier in a portable radiotelephone includes a power amplifier, a power supply, a power supply controller, connected between the power supply and the above power amplifier, for adjusting the voltage applied to the power amplifier, and a control unit, connected to the power supply controller, for controlling the adjusted voltage of the power supply controller according to the transmitting power required in a region of a strong or weak electric field, and/or required in a one of dual (FM/CDMA) modes.

REFERENCES:
patent: 3697886 (1972-10-01), Conn et al.
patent: 5203020 (1993-04-01), Sato et al.
patent: 5422931 (1995-06-01), Austin-Lazarus
patent: 5423078 (1995-06-01), Epperson et al.
patent: 5697096 (1997-12-01), Aoki
patent: 5732348 (1998-03-01), Norimatsu
patent: 5774797 (1998-06-01), Kawano et al.

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