A Study of the driving circuit for array transducer considering its impedance properties

Hayato Jimbo, Kota Goto, Shin Yoshizawa, Shin Ichiro Umemura

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

A multi-channel array transducer can enlarge the treatment volume of HIFU (High-Intensity Focused Ultrasound), which is a noninvasive method for cancer therapy, by generating and scanning multiple foci. In our previous study, we developed a compact and highly efficient driving circuit using staircase wave voltage for typical single HIFU transducer that the impedance is almost real at the resonance frequency. However, an array transducer element can have too capacitive impedance that affects the output voltage waveform designed for reducing the harmonics components. To solve this problem, we propose a new circuit to drive an array transducer considering its imaginary impedance. The proposed circuit was able to reduce not only the odd harmonics but also electrical power consumption. Simulation of the relationship between the number of staircase wave steps and the power consumption proved that the total power consumption due to intentional turn-on decreased in proportion to the number of steps.

本文言語English
ホスト出版物のタイトル2015 IEEE International Ultrasonics Symposium, IUS 2015
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781479981823
DOI
出版ステータスPublished - 2015 11 13
イベントIEEE International Ultrasonics Symposium, IUS 2015 - Taipei, Taiwan, Province of China
継続期間: 2015 10 212015 10 24

出版物シリーズ

名前2015 IEEE International Ultrasonics Symposium, IUS 2015

Other

OtherIEEE International Ultrasonics Symposium, IUS 2015
国/地域Taiwan, Province of China
CityTaipei
Period15/10/2115/10/24

ASJC Scopus subject areas

  • 音響学および超音波学

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