Bias circuit for smart power amplifier

Details Bias circuit for smart power amplifier Bias circuit for smart power amplifier

2006-10-31

2006-10-31

Pascal, Robert (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including particular power supply circuitry

C330S285000, C330S296000

Reexamination Certificate

active

07129786

ABSTRACT:
A bias circuit for a smart power amplifier includes a high power mode bias circuit and a low power mode bias circuit, and operates only one of the bias circuits selectively using a switching circuit according to an input signal. Therefore, the bias circuit of high power mode and the bias circuit of the low power mode are divided and can be optimized according to characteristics of the power. Accordingly, a gain difference with respect to each power can be minimized and the low power mode can be controlled with a small amount of current in a state of initial current with a low power and in a middle power, such that an efficiency of the power amplifier can be improved at low power.

REFERENCES:
patent: 5060294 (1991-10-01), Schwent et al.
patent: 6297694 (2001-10-01), Yamamoto
patent: 6753734 (2004-06-01), Arell et al.
patent: 6784743 (2004-08-01), Taniguchi et al.

Affiliated with

Also associated with

Rating

Bias circuit for smart power amplifier does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bias circuit for smart power amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bias circuit for smart power amplifier will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3619394