Power amplifying unit using a power amplifying module

Details Power amplifying unit using a power amplifying module Power amplifying unit using a power amplifying module

1993-02-15

1994-12-06

Pascal, Robert J.

Amplifiers

With semiconductor amplifying device

Including gain control means

330279, 330207P, 330129, H03G 330

Patent

active

053714784

ABSTRACT:
A power amplifying unit implemented with a power amplifying module and connectable to a transmitter/receiver of a mobile radio telephone apparatus. A DC current amplifier is connected to a control voltage terminal included in the PA module. Different voltages generated by individual power source circuits are selectively applied to the DC current amplifier. The unit is operable with any of one of various PA modules, each requiring a particular voltage to be applied to a control voltage terminal thereof.

REFERENCES:
patent: 4320350 (1982-03-01), Drapac
patent: 4380089 (1983-04-01), Wei
patent: 4433304 (1984-02-01), Engle
patent: 4602218 (1986-07-01), Vilmur et al.
patent: 4636741 (1987-01-01), Mitzlaff
patent: 4709404 (1987-11-01), Tamura et al.
patent: 4994757 (1991-02-01), Bickley et al.
patent: 5038112 (1991-08-01), O'Neill
patent: 5043672 (1991-08-01), Youn
Patent Abstracts of Japan, vol. 5, No. 145 (Publication No. 56-78209A), Jun. 1981.
Patent Abstracts of Japan, vol. 10, No. 275 (Publication No. 61-98007A), May 1986.

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