Method and apparatus for an amplifier

Details Method and apparatus for an amplifier Method and apparatus for an amplifier

2007-12-31

2010-06-01

Pascal, Robert (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including push-pull amplifier

C330S267000

Reexamination Certificate

active

07728670

ABSTRACT:
An amplifier including complementary push and pull components, a bias component and a quiescent current balancer. The complementary push and pull components are serially coupled to one another between an electrical source and sink to generate an output signal at a common output terminal responsive to the input signal source. The bias component is coupled between the input signal source and the complementary push-pull components to bias the input signal to the push component and the input signal to the pull component by discrete amounts which reduce cross-over clipping exhibited in the output signal. The quiescent current balancer is coupled to the output terminal to balance quiescent currents in the push and the pull component at discrete levels which equilibrate amplification levels of the input signal generated by the push component and the pull component in the output signal at the output terminal.

REFERENCES:
patent: 6166603 (2000-12-01), Smith
patent: 6657496 (2003-12-01), Chen et al.
patent: 7088182 (2006-08-01), Ivanov
patent: 7253685 (2007-08-01), Chung
patent: 7298211 (2007-11-01), Akama

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