Control scheme evaluation for class-D amplifiers in a power-ultrasonic system

Y. Wang, M.J. Draper, S.M. Denley, F.V.P. Robinson, P.R. Shepherd

Research output: Chapter in Book/Report/Conference proceedingOther chapter contribution

2 Citations (Scopus)
115 Downloads (Pure)

Abstract

Power-converters or amplifiers are required to drive high power piezoelectric transducers and attached processing equipment, at the optimum resonance mode for best processing efficacy, while under varying loading conditions. The driving power converter must synthesize relatively low-distortion sinusoidal output current to prevent harmonic-current excitation of neighbouring, less-productive or desirable resonant modes. Continuously-variable output-voltage capability is required to maintain output power at a level which optimises processing. Three output synthesis methods have been reviewed in this paper for the Class-D amplifier constituting the transducer driver. Typical output-waveform quality is assessed, and PSPICE simulation and laboratory results are presented to illustrate performance.
Original languageEnglish
Title of host publication6th IET International Conference on Power Electronics, Machines and Drives (PEMD 2012)
PublisherIET
Pages1 - 6
Number of pages6
ISBN (Electronic)978-1-84919-616-1
DOIs
Publication statusPublished - 2012
Event6th IET International Conference on Power Electronics, Machines and Drives (PEMD 2012) - Bristol, UK United Kingdom
Duration: 26 Mar 201228 Mar 2012

Publication series

NameIET Conference Publications
PublisherIET
NumberCP592
Volume2012

Conference

Conference6th IET International Conference on Power Electronics, Machines and Drives (PEMD 2012)
CountryUK United Kingdom
CityBristol
Period26/03/1228/03/12

Fingerprint Dive into the research topics of 'Control scheme evaluation for class-D amplifiers in a power-ultrasonic system'. Together they form a unique fingerprint.

Cite this