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


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
Number of pages4
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


Other2010 IEEE International Ultrasonics Symposium, IUS 2010
Country/TerritoryUnited States
CitySan Diego, CA


  • driver ciucuit
  • staircase wave

ASJC Scopus subject areas

  • Acoustics and Ultrasonics


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