Integration of a piezoelectric transformer and an ultrasonic motor

Suwan Manuspiya, Pitak Laoratanakul, Kenji Uchino

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Ultrasonic motors are usually operated at an AC voltage higher than a regular battery. This implies the need of a voltage step-up transformer. In this paper, we report the integration of a piezoelectric transformer (PT) with an ultrasonic motor and a simple drive circuit. The stator of the ultrasonic motor and the PT were operated in the same radial vibration mode. Their dimensions were very close to each other yielding nearly matching resonance frequencies. Consequently, they could be combined together without inductor. The drive circuit was designed by using a 555 timer as an astable multivibrator, and high-speed dual MOSFET drivers as a class D half-bridge switching amplifier. This integrated PT-ultrasonic motor performed reasonably without the use of electromagnetic transformer or inductor.

Original languageEnglish (US)
Pages (from-to)83-87
Number of pages5
JournalUltrasonics
Volume41
Issue number2
DOIs
StatePublished - Mar 1 2003

Fingerprint

transformers
ultrasonics
Ultrasonics
inductors
Multivibrators
multivibrators
Networks (circuits)
Electric potential
timing devices
Stators
stators
electric batteries
high voltages
vibration mode
alternating current
field effect transistors
amplifiers
high speed
electromagnetism
electric potential

All Science Journal Classification (ASJC) codes

  • Safety, Risk, Reliability and Quality
  • Acoustics and Ultrasonics

Cite this

Manuspiya, Suwan ; Laoratanakul, Pitak ; Uchino, Kenji. / Integration of a piezoelectric transformer and an ultrasonic motor. In: Ultrasonics. 2003 ; Vol. 41, No. 2. pp. 83-87.
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Integration of a piezoelectric transformer and an ultrasonic motor. / Manuspiya, Suwan; Laoratanakul, Pitak; Uchino, Kenji.

In: Ultrasonics, Vol. 41, No. 2, 01.03.2003, p. 83-87.

Research output: Contribution to journalArticle

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