High output power amplifier with adjustable voltage...

Details High output power amplifier with adjustable voltage... High output power amplifier with adjustable voltage...

2008-07-08

2008-07-08

Nguyen, Khanh V (Department: 2817)

Amplifiers

Wheatstone bridge with amplifier in at least one arm

C330S195000

Reexamination Certificate

active

07397305

ABSTRACT:
A high output power amplifier with change of voltage transformation ratio of a transformer is disclosed. The high output power amplifier using a transformer installed to output leads thereof, which can increase dynamic range and efficiency thereof as voltage transformation ratio of the transformer is adjusted and load resistance is adjusted so as not to generate signal distortion phenomenon and not to decrease its efficiency.

REFERENCES:
patent: 5003271 (1991-03-01), Swanson
patent: 6522201 (2003-02-01), Hsiao et al.
I. Aoki et al.; “A Fully-Integrated 1.8-V, 2.8-W, 1.9-GHz, CMOS Power Amplifier”;IEEE MTT-S Digest; 2003; pp. 199-202.

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