A figure-of-merit for design of high performance inductive power transmission links for implantable microelectronic devices

Mehdi Kiani, Maysam Ghovanloo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

Wireless power transfer through inductive coupling is used in many applications such as high performance implantable microelectronic devices (IMDs). Power transfer efficiency (PTE) and power delivered to the load (PDL) are two conventional inductive link design merits that determine the energy source and driver specifications, heat dissipation, power transmission range, and risk of interference with other devices. Unfortunately designing the inductive link to achieve a high PTE will drastically reduce the PDL and vice versa. Therefore, we are proposing a new figure-of-merit (FoM), which includes both PTE and PDL with proper weights, to help designers of inductive power transfer links to strike a balance between high PTE and PDL at the same time. Three design examples based on the PTE, PDL, and the new FoM have been presented for IMDs to demonstrate the usage and efficacy of the FoM. Our measurement results show that the inductive link optimized based on the FoM can achieved 1.65 times higher PTE than the one optimized for the PDL (72.5% vs. 44%) and at the same time provide 20.8 times larger PDL compared to the one optimized for the PTE (177 mW vs. 8.5 mW for 1 V driving voltage). The inductive links optimized for the PTE and PDL provide 24% higher PTE and PDL compared to the one optimized based on the FoM, respectively.

Original languageEnglish (US)
Title of host publication2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2012
Pages847-850
Number of pages4
DOIs
StatePublished - Dec 14 2012
Event34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2012 - San Diego, CA, United States
Duration: Aug 28 2012Sep 1 2012

Publication series

NameProceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
ISSN (Print)1557-170X

Other

Other34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2012
CountryUnited States
CitySan Diego, CA
Period8/28/129/1/12

Fingerprint

Microelectronics
Telecommunication links
Equipment and Supplies
Hot Temperature
Weights and Measures
Inductive power transmission
Power transmission
Heat losses
Specifications
Electric potential

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

Cite this

Kiani, M., & Ghovanloo, M. (2012). A figure-of-merit for design of high performance inductive power transmission links for implantable microelectronic devices. In 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2012 (pp. 847-850). [6346064] (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS). https://doi.org/10.1109/EMBC.2012.6346064
Kiani, Mehdi ; Ghovanloo, Maysam. / A figure-of-merit for design of high performance inductive power transmission links for implantable microelectronic devices. 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2012. 2012. pp. 847-850 (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS).
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abstract = "Wireless power transfer through inductive coupling is used in many applications such as high performance implantable microelectronic devices (IMDs). Power transfer efficiency (PTE) and power delivered to the load (PDL) are two conventional inductive link design merits that determine the energy source and driver specifications, heat dissipation, power transmission range, and risk of interference with other devices. Unfortunately designing the inductive link to achieve a high PTE will drastically reduce the PDL and vice versa. Therefore, we are proposing a new figure-of-merit (FoM), which includes both PTE and PDL with proper weights, to help designers of inductive power transfer links to strike a balance between high PTE and PDL at the same time. Three design examples based on the PTE, PDL, and the new FoM have been presented for IMDs to demonstrate the usage and efficacy of the FoM. Our measurement results show that the inductive link optimized based on the FoM can achieved 1.65 times higher PTE than the one optimized for the PDL (72.5{\%} vs. 44{\%}) and at the same time provide 20.8 times larger PDL compared to the one optimized for the PTE (177 mW vs. 8.5 mW for 1 V driving voltage). The inductive links optimized for the PTE and PDL provide 24{\%} higher PTE and PDL compared to the one optimized based on the FoM, respectively.",
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Kiani, M & Ghovanloo, M 2012, A figure-of-merit for design of high performance inductive power transmission links for implantable microelectronic devices. in 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2012., 6346064, Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS, pp. 847-850, 34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2012, San Diego, CA, United States, 8/28/12. https://doi.org/10.1109/EMBC.2012.6346064

A figure-of-merit for design of high performance inductive power transmission links for implantable microelectronic devices. / Kiani, Mehdi; Ghovanloo, Maysam.

2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2012. 2012. p. 847-850 6346064 (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Kiani M, Ghovanloo M. A figure-of-merit for design of high performance inductive power transmission links for implantable microelectronic devices. In 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2012. 2012. p. 847-850. 6346064. (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS). https://doi.org/10.1109/EMBC.2012.6346064