Small size power amplifier with amplifiers switched

Details Small size power amplifier with amplifiers switched Small size power amplifier with amplifiers switched

2007-10-04

2009-11-03

Nguyen, Khanh V (Department: 2817)

Amplifiers

With plural amplifier channels

Redundant amplifier circuits

C330S051000, C330S302000, C330S310000

Reexamination Certificate

active

07612607

ABSTRACT:
A small size power amplifier includes a first amplifier provided for a first signal path; a second amplifier provided for said first signal path; and a third amplifier provided for a second signal path parallel to said first signal path. A voltage control circuit configured to bias one of a first set of said first amplifier and said second amplifier, and a second set of said third amplifier, based on an output power.

REFERENCES:
patent: 6674323 (2004-01-01), Kagaya et al.
patent: 6781455 (2004-08-01), Kim
patent: 2004/0113698 (2004-06-01), Kim et al.
patent: 2008/0231358 (2008-09-01), Maemura
patent: 2005-244862 (2005-09-01), None

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