A closed loop transcutaneous power transfer system for implantable devices with enhanced stability

Guoxing Wang, Wentai Liu, Rizwan Bashirullah, Mohanasankar Sivaprakasam, Gurhan A. Kendir, Ying Ji, Mark S. Humayun, James D. Weiland

研究成果: Conference article同行評審

34 引文 斯高帕斯(Scopus)

摘要

This paper describes a closed-loop wireless inductive power transfer system for an implantable retinal prosthetic device. The proposed system is designed to ensure optimal power transfer to the implanted unit despite coil displacements and changes in load current while minimizing the sensitivity to component and process variation. Based on the system modeling, stability constraints are identified and applied to the feedback control system. The model is crucial in determining components values, circuit topology and number of transmitted bits per sampling period required to ensure system stability. In addition, the model significantly reduces design iterations compounded by lengthy circuit simulation. The model is verified by Matlab and SPICE level simulations. Critical analog circuits of the control system have been designed and fabricated through AMI 1.6um process.

原文English
頁(從 - 到)IV-17-IV-20
期刊Proceedings - IEEE International Symposium on Circuits and Systems
4
出版狀態Published - 2004
事件2004 IEEE International Symposium on Cirquits and Systems - Proceedings - Vancouver, BC, Canada
持續時間: 2004 5月 232004 5月 26

All Science Journal Classification (ASJC) codes

  • 電氣與電子工程

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