A hybrid optimal design strategy of wireless magnetic-resonant charger for deep brain stimulation devices

Xiu Zhang, Siu Lau Ho, Weinong Fu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

13 Citations (Scopus)


A hybrid optimal design strategy for wireless magnetic-resonant charger of deep brain stimulation devices is presented. It is proposed that a differential evolution algorithm with discrete variables (turn numbers of coils) and constrains (induced current and voltage in the load loop) is used to design the wireless power transfer system. The variables which normally include the sizes of the load coil, receiver coil, transmitter coil, source coil and capacitances are analyzed in the optimization study. Analytical formulas are embedded in the numerical optimization to speed up the convergence of the searching process. The designed receiver can receive enough power to recharge a 3.7 V circular button-type nickel-metal hydride rechargeable battery which can be implanted into the patients' skull. The performance of the designed system has been verified experimentally.
Original languageEnglish
Article number6514610
Pages (from-to)2145-2148
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number5
Publication statusPublished - 22 May 2013


  • Biomedical implantable
  • deep brain simulation
  • optimal design
  • wireless power transfer

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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