Class-D amplifier design and performance for driving a Piezo Actuator Drive servomotor.

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Abstract

This paper investigates the behavior of piezoelectric stacks in a Piezoelectric Actuator Drive (PAD) motor, which shows non-linear equivalent impedance and has a dramatic impact on the overall system performance. Therefore, in this paper, the piezo stackt’s model is discussed and an improved large signal model is proposed and verified by measurement. Finally, a Class-D amplifier as a power driver and its associated closed-loop control are implemented and tested to control PAD drive effectively.
Original languageEnglish
Title of host publicationProceedings of 2016 IEEE International Conference on Industrial Technology
PublisherIEEE
Publication date2016
Pages1068-1072
ISBN (Print)978-1-4673-8074-4
DOIs
Publication statusPublished - 2016
Event2016 IEEE International Conference on Industrial Technology - Howard Plaza Hotel, Taipei, Taiwan, Province of China
Duration: 14 Mar 201617 Mar 2016

Conference

Conference2016 IEEE International Conference on Industrial Technology
LocationHoward Plaza Hotel
CountryTaiwan, Province of China
CityTaipei
Period14/03/201617/03/2016

Keywords

  • Piezoelectricity
  • Motor
  • Control

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