Amplifier having a virtual ground and method thereof

Details Amplifier having a virtual ground and method thereof Amplifier having a virtual ground and method thereof

2008-01-11

2009-06-30

Choe, Henry K (Department: 2817)

Amplifiers

Modulator-demodulator-type amplifier

C330S126000

Reexamination Certificate

active

07554391

ABSTRACT:
An amplifier comprises first, second, and third modulators. The first modulator includes an input for receiving a first input signal, and an output for providing a first modulated output signal corresponding to the first input signal. The second modulator includes an input for receiving a second input signal, and an output for providing a second modulated output signal corresponding to the second input signal. The third modulator has an input for receiving a third input signal, and an output for providing a third modulated output signal corresponding to the third input signal and for providing a virtual ground. A first amplifier circuit is coupled to the outputs of the first and third modulators for driving a first load. A second amplifier circuit is coupled to the outputs of the second and third modulators for driving a second load.

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