Method and system for improving amplifier efficiency

Details Method and system for improving amplifier efficiency Method and system for improving amplifier efficiency

2005-08-16

2005-08-16

Nguyen, Patricia (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including class d amplifier

C330S075000, C330S100000

Reexamination Certificate

active

06930548

ABSTRACT:
One aspect of the invention is an amplifier (10), comprising an input stage amplifier (20) coupled to an output node (81). The amplifier (10) further comprises a class D output stage (50), which comprises at least two switching elements (P1, N1) and coupled to the output node (81). The amplifier (10) also comprises a control circuit (40) coupled to the output stage (50). The control circuit (40) is operable to produce a tri-state output of the output stage (50) in response to a sensed value proportional to an amount of current that flows to the output node (81).

REFERENCES:
patent: 5077539 (1991-12-01), Howatt
patent: 5617058 (1997-04-01), Adrian et al.
patent: 5805020 (1998-09-01), Danz et al.
patent: 5973368 (1999-10-01), Pearce et al.
patent: 5973569 (1999-10-01), Nguyen
patent: 6005316 (1999-12-01), Harris
patent: 6229389 (2001-05-01), Pullen et al.
patent: 6229390 (2001-05-01), Delano et al.

Affiliated with

Also associated with

Rating

Method and system for improving amplifier efficiency 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 system for improving amplifier efficiency, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for improving amplifier efficiency will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3502486