Accurate determination of switching loss in class-D power amplifiers with random gaussian excitation using rice formula

M. Sarkeshi, R. Mahmoudi, A.H.M. Roermund, van

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Abstract

A well known technique to compute average zero crossing rate of statistical signals in Information Theory (Rice's Formula) is employed to accurately predict the switching loss of the limit cycle class-D power amplifier. A closed-form formula is derived which is not only faster than circuit simulation but also very insightful for a priori design as it relates the switching loss to input signal statistics. The results obtained from the derived formulas have been verified by a prototype design of a CMOS voltage-mode class-D power amplifier. The correspondence between the results is satisfactory.
Original languageEnglish
Title of host publicationProceedings of the IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications 2011 (PAWR 2011), 16-19 January 2011, Phoenix, AZ, USA
Pages73-76
DOIs
Publication statusPublished - 2011
Eventconference; IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications 2011 (PAWR 2011); 2011-01-16; 2011-01-19 -
Duration: 16 Jan 201119 Jan 2011

Conference

Conferenceconference; IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications 2011 (PAWR 2011); 2011-01-16; 2011-01-19
Period16/01/1119/01/11
OtherIEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications 2011 (PAWR 2011)

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