Linearized bias circuit with adaptation

Details Linearized bias circuit with adaptation Linearized bias circuit with adaptation

2008-04-15

2008-04-15

Choe, Henry (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including particular biasing arrangement

C330S289000, C330S285000

Reexamination Certificate

active

11397620

ABSTRACT:
A linearized bias circuit with adaptation resolves the problem happening to the power amplifier with conventional bias circuit that the DC and AC characteristics of the power amplifier shift or even deteriorate due to a temperature variation. The linearized bias circuit with adaptation has a reference voltage source, a first voltage source, a first resistor, a second resistor, a first NPN transistor, a second NPN transistor, and a third NPN transistor. The present invention has the characteristics of bias current temperature compensation, gain and phase compensations to achieve high linearity for the conventional power amplifier and reducing the DC consumption power. At the same time, the quantity of the required elements and layout area in the present invention are small so that the design complexity can be reduced for improving yield, reducing IC layout area, and reducing cost.

REFERENCES:
patent: 6333677 (2001-12-01), Dening
patent: 6492874 (2002-12-01), Shih
patent: 6744321 (2004-06-01), Noh et al.
patent: 6842075 (2005-01-01), Johnson et al.
patent: 7245182 (2007-07-01), Koizumi

Affiliated with

Also associated with

Rating

Linearized bias circuit with adaptation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Linearized bias circuit with adaptation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linearized bias circuit with adaptation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3933427