Staircase-wave drive circuit to drive therapeutic array transducer

Kosuke Moro, Jumpei Okada, Keisuke Takada, Shin Yoshizawa, Shinichiro Umemura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An important component of all ultrasound system is a high voltage driver toexcite the transducer for transmission. A new type of MOSFET switching drivercircuit is proposed based on staircase wave drive concept for such applications.The staircase-wave drive can significantly decrease the harmonics in comparisonwith the conventional square-wave drive. Using a diode in series to the drainof each MOSFET, a staircase-wave driver was created with a relatively simpleconfiguration. Since it does not require a resonant circuit to reduce theharmonics, the drive frequency can be freely changed and the total size of thedrive circuit can be compact. Experiments with a prototype driver as well ascircuit simulation show the efficacy of the proposed driver circuit.

Original languageEnglish
Title of host publication2010 IEEE International Ultrasonics Symposium, IUS 2010
Pages1799-1802
Number of pages4
DOIs
Publication statusPublished - 2010 Dec 1
Event2010 IEEE International Ultrasonics Symposium, IUS 2010 - San Diego, CA, United States
Duration: 2010 Oct 112010 Oct 14

Publication series

NameProceedings - IEEE Ultrasonics Symposium
ISSN (Print)1051-0117

Other

Other2010 IEEE International Ultrasonics Symposium, IUS 2010
Country/TerritoryUnited States
CitySan Diego, CA
Period10/10/1110/10/14

Keywords

  • MOSFET
  • driver ciucuit
  • staircase wave

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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