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Design and Test of a High-Power High-Efficiency Loosely Coupled Planar Wireless Power Transfer System
Abstract
In this paper, a high-power high-efficiency wireless-power-transfer system using the class-E operation for transmitter via inductive coupling has been designed and fabricated using the proposed design approach. The system requires no complex external control system but relies on its natural impedance response to achieve the desired power-delivery profile across a wide range of load resistances while maintaining high efficiency to prevent any heating issues. The proposed system consists of multichannels with independent gate drive to control power delivery. The fabricated system is compact and capable of 295 W of power delivery at 75.7% efficiency with forced air cooling and of 69 W of power delivery at 74.2% efficiency with convection cooling. This is the highest power and efficiency of a loosely coupled planar wireless-power-transfer system reported to date.
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Cited by
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Won, S. M., Cai, L., Gutruf, P., & Rogers, J. A. (2021) · Nature Biomedical Engineering · doi:10.1038/s41551-021-00683-3 · Cited by 360
Circuit Model Based Analysis of a Wireless Energy Transfer System via Coupled Magnetic Resonances
Cheon, S.-H., Kim, Y.-H., Lee, M.-L., & Kang, S.-Y. (2011) · The Transactions of the Korean Institute of Power Electronics · doi:10.6113/tkpe.2011.16.2.137 · Cited by 337
Wireless power transfer approaches for medical implants: a review
Haerinia, M., & Shadid, R. (2020) · Signals · doi:10.3390/signals1020012 · Cited by 174
“Although, in practice, the implanted coil is significantly smaller than the transmitting coil [70].”
BackgroundInductive coupling for wireless power transfer and near-field communication
Degen, C. (2021) · EURASIP Journal on Wireless Communications and Networking · doi:10.1186/s13638-021-01994-4 · Cited by 47
Metadata
- Authors
- Low, Z. N., Chinga, R. A., Tseng, R., & Lin, J.
- Venue
- IEEE Transactions on Industrial Electronics
- Published
- 2009-05
- Volume
- 56
- Issue
- 5
- Pages
- 1801-1812
- ISSN
- 0278-0046 (ISSN-L)
- OpenAlex
- W2156447533
- Cited by
- 528
- References
- 0
- FWCI
- 8.67
- Type
- journal article
- Language
- en
- Open access
- closed
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- Low, Z. N., Chinga, R. A., Tseng, R., & Lin, J. (2009). Design and Test of a High-Power High-Efficiency Loosely Coupled Planar Wireless Power Transfer System. IEEE Transactions on Industrial Electronics. https://doi.org/10.1109/tie.2008.2010110
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