Topology Selection and Efficiency Improvement of Inductive Power Links

Jegadeesan, R.; Guo, Yong‐Xin

doi:10.1109/tap.2012.2207325

Cited by 101 publications

(55 citation statements)

References 16 publications

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“…We have developed the theory behind optimal design of power transfer links that can operate at maximum power transfer efficiency [21][22] across various topologies, loads and frequencies of operation. We propose to solve practical problems in wireless power delivery to implants namely coil misalignment and motion artifacts, which are solved by using intermediate coils [23] and we also present the complete theoretical modeling of coil misalignment in [24].…”

Section: A Near-field Inductive Power Transfermentioning

confidence: 99%

Modeling and design of wireless data telemetry and power transfer for biomedical implants

Agarwal

Jegadeesan²,

Guo

et al. 2015

2015 IEEE International Conference on Computational Electromagnetics

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This paper briefly discusses the modeling and design processes of various implantable miniaturized antennas and coils proposed by our research group for wireless data telemetry and power transfer for implants. Methods to overcome practical design issues in implants are proposed whilst adhering to the standard safety regulations.Index Terms -biomedical implant, compact antenna, implantable antenna, data telemetry, power transfer, wireless.

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Section: A Near-field Inductive Power Transfermentioning

confidence: 99%

Modeling and design of wireless data telemetry and power transfer for biomedical implants

Agarwal

Jegadeesan²,

Guo

et al. 2015

2015 IEEE International Conference on Computational Electromagnetics

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“…Hence the series resonant topology is the optimal topology for this application [3]. The implant coil dimension is chosen as 15.8 mm square planar inductor which will utilize the maximum area allowable for the implant.…”

Section: Power Link Optimizationmentioning

confidence: 99%

“…Based on the models for square planar inductors [4], the frequency which maximizes the quality factor of the 15.8 mm square planar implant coil is around 10 MHz. The frequency corresponding to maximum quality factor of the implant is the near-optimal frequency of power transfer based on our earlier work [3]. Hence we fix the frequency of operation for this link as 10 MHz and the coil parameters of the implant coil are chosen to be the values which maximize the quality factor.…”

Section: Power Link Optimizationmentioning

confidence: 99%

An efficient wireless power link for neural implant

Jegadeesan

Guo

Xue

et al. 2012

2012 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)

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An efficient resonant tuned wireless power transfer (WPT) link using inductive coupling has been proposed for the neural implant application in this work. The power link is optimized for an operating frequency of 10 MHz using coil, load and frequency optimization. The lossy tissue model was used to mimic the power loss in tissue and the simulated (HFSS) peak SAR values were within the allowed limit for 20 mW power received at implant. The power transfer efficiency for implant coil sizes of 250 mm 2 for a power transmit range of 10 mm was simulated using HFSS to be around 82%.Index Terms -resonant tuning, inductive coupling, neural implant, wireless power transfer.

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“…Researcher intensively studied on WET system at several operating frequency, from high frequency like 912MHz [1] to low frequency such as 13.56MHz and 115.6 kHz [2][3]. A variety of methods in WET have been investigated, namely inductive coupling [4], resonant coupling [5], capacitive coupling [6] and electromagnetic coupling [7]. For near field WET system, interest in inductive coupling has increase compare to capacitive coupling because of its safety.…”

Section: Introductionmentioning

confidence: 99%