Common mode bias control loop for output stages

Details Common mode bias control loop for output stages Common mode bias control loop for output stages

2005-08-23

2005-08-23

Choe, Henry (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including push-pull amplifier

C330S290000

Reexamination Certificate

active

06933785

ABSTRACT:
An output circuit is described, which includes a gain stage, n and p drives, coupled to the gain stage, a mean current generator, coupled to the drives, a reference current generator, coupled to the mean current generator, and feedback circuitry, coupled between the gain stage and the mean current generator. In this circuitry the feedback, provided by the feedback circuitry to the mean current generator, is a current mode feedback. The mean current generator generates the harmonic mean of currents, provided through current nodes. The described output circuit can be operated by providing currents at the current nodes of the mean current generator, generating a mean of provided currents with the mean current generator, and providing a current mode feedback by the feedback circuitry to the mean current generator. The feedback circuitry computes the difference between the generated mean current and a reference current.

REFERENCES:
patent: 4145666 (1979-03-01), Seki
patent: 4335358 (1982-06-01), Hoeft
patent: 5162751 (1992-11-01), Blanken et al.
patent: 5440273 (1995-08-01), Gusinov et al.
patent: 5521553 (1996-05-01), Butler
patent: 5734296 (1998-03-01), Dotson et al.
patent: 5786731 (1998-07-01), Bales
patent: 6104244 (2000-08-01), Gilbert
patent: 6262633 (2001-07-01), Close
patent: 6535064 (2003-03-01), Harvey
patent: 6566958 (2003-05-01), Smith
patent: 6741133 (2004-05-01), Kinsho et al.

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