Journal of South China University of Technology (Natural Science Edition) ›› 2018, Vol. 46 ›› Issue (3): 72-77.doi: 10.3969/j.issn.1000-565X.2018.03.011

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Modeling of Ultrasonic Wireless Electrical Energy Transfer System
 

 LI Zhijian ZHUANG Ganlin WU Zhaohui LI Bin ZHANG Xiulai    

  1.  School of Electronic and Information Engineering，South China University of Technology，Guangzhou 510640，Guangdong，China
  • Received:2017-09-25 Revised:2017-11-20 Online:2018-03-25 Published:2018-03-01
  • Contact: 吴朝晖(1971-)，男，博士，副教授，主要从事集成电路研究． E-mail:phzhwu@scut.edu.cn
  • About author:李志坚(1981-)，男，博士，讲师，主要从事电路系统、无线能量收集技术研究
  • Supported by:
     Supported by the General Program of National Natural Science Foundation of China(61571196) and the Science and Technology Planning Project of Guangdong Province(2013B010402001， 2015B090912002) 

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Abstract: Ultrasonic power transfer using piezoelectric devices is a promising wireless power transfer technology for biomedical implants． The depth of implantation is the key parameter of ultrasonic power transmission system． To explore the effect of depth of implantation on the power transmission efficiency，an ultrasonic power transfer system is designed underwater． The depth of implantation is simulated by the distance between the transmitter and the receiver． The output voltage of the receiver is acquired at different distances firstly and then analyzed by SPSS and Matlab software with statistics method． The linear regression model is established on the basis of analysis． The model is verified by means of the ultrasonic power transfer system． The experimental results show that the ultrasonic power transmission efficiency is related to the distance between a transmitter and a receiver． The output voltage of receiver decreases with the increase of distance． The proposed model has good prediction effect with the fitting degree greater than 95 percent and the prediction error less than 10 percent． 

Key words: wireless power transfer, ultrasonic power transmission, power transmission efficiency

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