dc.contributor.authorLam, Chun Kit
dc.contributor.authorTan, Meng Tong
dc.contributor.authorCox, Stephen Michael
dc.contributor.authorYeo, Kiat Seng
dc.identifier.citationLam, C. K., Tan, M. T., Cox, S. M., & Yeo, K. S. (2012). Class-D amplifier power stage with PWM feedback loop. IEEE transactions on power electronics, 28(8), 3870-3881.en_US
dc.description.abstractThis paper presents a second-order pulsewidth modulation (PWM) feedback loop to improve power supply rejection (PSR) of any open-loop PWM class-D amplifiers (CDAs). PSR of the audio amplifier has always been a key parameter in mobile phone applications. In contrast to class-AB amplifiers, the poor PSR performance has always been the major drawback for CDAs with a half-bridge connected power stage. The proposed PWM feedback loop is fabricated using GLOBALFOUNDRIES' 0.18-μm CMOS process technology. The measured PSR is more than 80 dB and the measured total harmonic distortion is less than 0.04% with a 1-kHz input sinusoidal test tone.en_US
dc.relation.ispartofseriesIEEE transactions on power electronicsen_US
dc.rights© 2012 IEEEen_US
dc.subjectDRNTU::Engineering::Electrical and electronic engineering::Power electronics
dc.titleClass-D amplifier power stage with PWM feedback loopen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US

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