Dynamic bias amplifier

Details Dynamic bias amplifier Dynamic bias amplifier

1992-06-26

1993-06-01

Mullins, James B.

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

330136, 330267, 330279, 330297, H03G 330

Patent

active

052163792

ABSTRACT:
The bias level of an amplifier is controlled by an active bias circuit. The active bias circuit establishes a predetermined amplifier bias level (such as class A mode) as a function of input signal level and load impedance. The load impedance value may be manually entered or determined automatically by a disclosed impedance measuring system. Power supply circuitry is responsive to the value of load impedance to vary the bias voltage applied to the amplifier's output devices.

REFERENCES:
patent: 4077013 (1978-02-01), Morez et al.
patent: 4358739 (1982-11-01), Nelson
patent: 4439743 (1984-03-01), Schwarz et al.
patent: 4498057 (1985-02-01), Noro
patent: 4502020 (1985-02-01), Nelson et al.
patent: 4549147 (1985-10-01), Kondo
patent: 4638260 (1987-01-01), Hamley
patent: 4752745 (1988-06-01), Pass
Stereo Review, "Digital Pure-A--New possibilities for class-A," Dec. 1989.

Affiliated with

Also associated with

Rating

Dynamic bias 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 Dynamic bias amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic bias amplifier will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1817646