Ahmad Karimi, Abdalhossein Rezai, Mohammad Mahdi Hajhashemkhani, Javad Sadeghi Azizkhani
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A novel architecture for high-performance PWM class-D audio amplifier
Reducing power consumption and improving the output quality of the devices are the most critical challenges in electronic technologic. These concerns amplify when facing a widely used device such as amplifier. In this paper, a new structure is proposed for Pulse Width Modulation (PWM) class-D audio amplifier. The proposed structure utilizes a novel filter to improve the output quality. In addition, some modifications have been applied to enhance the power stage performances. The proposed architecture is simulated using MATLAB. The simulation results indicate that efficiency, Total Harmonic Distortion (THD), and output power are 97%, 0.001, and 80W, respectively. The comparison indicates that the proposed PWM class-D audio amplifier has advantages compared to other PWM class-D audio amplifiers.
期刊介绍：
Analog Integrated Circuits and Signal Processing is an archival peer reviewed journal dedicated to the design and application of analog, radio frequency (RF), and mixed signal integrated circuits (ICs) as well as signal processing circuits and systems. It features both new research results and tutorial views and reflects the large volume of cutting-edge research activity in the worldwide field today.
A partial list of topics includes analog and mixed signal interface circuits and systems; analog and RFIC design; data converters; active-RC, switched-capacitor, and continuous-time integrated filters; mixed analog/digital VLSI systems; wireless radio transceivers; clock and data recovery circuits; and high speed optoelectronic circuits and systems.
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