Method and apparatus for high efficiency power amplification

Details Method and apparatus for high efficiency power amplification Method and apparatus for high efficiency power amplification

1997-12-29

1999-08-24

Pascal, Robert

Amplifiers

Modulator-demodulator-type amplifier

330207A, H03F 338

Patent

active

059429380

ABSTRACT:
A method and apparatus for efficient power amplification of a modulated signal includes an envelope detector (220), an multi-output class S modulator (270), a driver amplifier (250), and a power amplifier (260). The multi-output class S modulator (270) amplifies the envelope of the input signal and generates a primary amplified envelope signal and at least one offset amplified envelope signal. The offset amplified envelope signal is used to modulate the driver amplifier (250), and the primary amplified envelope signal is used to modulate the power amplifier (260).

REFERENCES:
patent: 3777275 (1973-12-01), Cox
patent: 4831334 (1989-05-01), Hudspeth et al.
patent: 5251330 (1993-10-01), Chiba et al.
patent: 5831475 (1998-11-01), Myers et al.
patent: 5847602 (1998-12-01), Su
patent: 5861777 (1999-01-01), Sigmon et al.

Affiliated with

Also associated with

Rating

Method and apparatus for high efficiency power amplification does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for high efficiency power amplification, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for high efficiency power amplification will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-470205