Patent ID: 7728670

Claim:
An amplifier for amplifying an input signal from an input signal source, and the amplifier comprising: complementary push and pull components having control inputs coupled to the input signal source and channels serially coupled to one another between an electrical source and sink to generate an output signal at a common output terminal there between responsive to the input signal source; a bias component coupled between the input signal source and the control inputs of 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 at the output terminal; and a quiescent current balancer coupled to the complementary pull components exclusively at the common output terminal thereof and without any connection to the control inputs of the complementary push and pull components 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 common output terminal; thereby reducing distortion in output signal.