In a digital class D power amplifier, the distortion is introduced into the input signal being amplified in power stage, due to the effect of power supply noise. A method used to eliminate the distortion is presented in the paper. This method is adding correction factors to all integrators of Delta-Sigma modulator, and introducing power supply noise to the input of the class D power amplifier a...

The distortion produced by a typical solid-state Class-B power amplifier is shown to consist of eight mechanisms, all of which may coexist and whose distortion products overlap to give a complex result. Methods for isolating each mechanism for study, and minimising its contribution, are given. If the avoidable distortions are designed out, Class-B amplifiers of unusually low distortion (Below 0...

We present an optimization of the voltage scaling algorithm in low power audio class G amplifier for headphones application to allow longer playback time. The optimization approach minimizes the voltage difference between the internal audio amplifier power supply and its output signal over a large range of operating conditions. The modeling is based on a behavioral model enabling accurate and r...

This paper presented a modified efficient inductive powering link based on ASK modulator and proposed efficient classE power amplifier. The design presents the external part which is located outside the body to transfer power and data to the implanted devices such as implanted Microsystems to stimulate and monitoring the nerves and muscles. The system operated with low band frequency 10MHZ acco...