Patent Number: 8,717,096

Title: Switching amplifier system and method for suppressing signal distortion thereof

Abstract: The invention further provides a switching amplifier system. In one embodiment, the switching amplifier system comprises a noise shaper, a corrector, and a pulse width logic. The noise shaper receives a first signal, performs a noise shaping process to process the first signal according to a feedback signal to generate a second signal sliced into a plurality of frames. The corrector adds a plurality of correction pulses respectively to the frames of the second signal to obtain a third signal in such a way that the correction pulse added to the second signal in a target frame selected from the frames has a polarity inverse to that of an original waveform of the second signal in the target frame. The pulse width logic then converts the third signal to a pulse width modulation (PWM) signal.

Inventors: Wu; Li-Te (Hsinchu County, TW)

Assignee: NeoEnergy Microelectronics, Inc.

International Classification: H03F 3/38 (20060101)

Expiration Date: 5/06/12018