Power controller

Details Power controller Power controller

2005-12-27

2005-12-27

Le, Lana (Department: 2685)

Telecommunications

Transmitter

Power control, power supply, or bias voltage supply

C455S127300, C455S343100, C455S115100, C330S051000

Reexamination Certificate

active

06980780

ABSTRACT:
An apparatus for power controlling in a transmitter for detecting the output power without using a power coupler includes a plurality of stage amplifiers, a plurality of matching circuits, at least one power detector, and a bias control circuit. The stage amplifiers receive an emission signal and amplify the power thereof. The matching circuits are connected between the stage amplifiers for matching with the stage amplifiers, respectively. The power detector detects the power of the stage amplifiers and generates detection signals, respectively. The bias control circuit receives the detection signals of the power detector, thereby generating a bias of each of the stage amplifiers in order to optimize the efficiency of each of the stage amplifiers according to the magnitude of the power of each of the stage amplifiers.

REFERENCES:
patent: 5023569 (1991-06-01), Raven
patent: 5303395 (1994-04-01), Dayani
patent: 5574993 (1996-11-01), Kobayashi et al.
patent: 5757235 (1998-05-01), Fujiwara et al.
patent: 5831479 (1998-11-01), Leffel et al.
patent: 5903854 (1999-05-01), Abe et al.
patent: 6121841 (2000-09-01), Sakuno
patent: 6127886 (2000-10-01), Khabbaz et al.
patent: 6134424 (2000-10-01), Nishihori et al.
patent: 6148220 (2000-11-01), Sharp et al.
patent: 6154664 (2000-11-01), Chorey et al.
patent: 6215987 (2001-04-01), Fujita
patent: 6240279 (2001-05-01), Nitta et al.
patent: 6366788 (2002-04-01), Fujioka et al.
patent: 6369649 (2002-04-01), Nakajima
patent: 6396879 (2002-05-01), Yoshimura et al.
patent: 6532357 (2003-03-01), Ichikawa
patent: 6678507 (2004-01-01), Kurokawa et al.
patent: 6816714 (2004-11-01), Toncich
patent: 2001/0023177 (2001-09-01), Tanaka
patent: 2003/0054780 (2003-03-01), Nunogawa et al.
patent: 0 977 354 (2000-02-01), None
patent: 05291842 (1993-11-01), None
patent: WO 99/30426 (1999-06-01), None

Affiliated with

Also associated with

Rating

Power controller does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3495715