Choosing the Optimal Power Coils Using Open-Source k-Oriented Design Automation
| Autor: | Brian N. Kim, Chaebin Kim, Edward Daniel Nichols |
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| Rok vydání: | 2021 |
| Předmět: |
Capacitive coupling
Optimal design Computer science Biomedical Engineering Equipment Design Prostheses and Implants Automation Electric Power Supplies Electromagnetic coil Electronic engineering Maximum power transfer theorem Design process Equivalent circuit Electronic design automation Wireless power transfer Electrical and Electronic Engineering Wireless Technology Software |
| Zdroj: | IEEE Transactions on Biomedical Circuits and Systems. 15:159-170 |
| ISSN: | 1940-9990 1932-4545 |
| DOI: | 10.1109/tbcas.2021.3059934 |
| Popis: | Wireless power coils have found important use in implantable medical devices for safe and reliable wireless power transfer. Designing coils for each specific application is a complex process with many interdependent design variables; determining the most optimal design parameters for each pair is challenging and time-consuming. In this paper, we develop an automated design method for planar square-spiral coils that generates the idealized design parameters for maximum power transfer efficiency according to the input design requirements. Computational complexity is first reduced by isolating the inductive coupling coefficient, k, from other design parameters. A simplified but accurate equivalent circuit model is then developed, where skin effect, proximity effect, and parasitic capacitive coupling are iteratively considered. The proposed method is implemented in an open-source software which accounts for the input fabrication limitations and application specific requirements. The accuracy of the estimated power transfer efficiency is validated via finite element method simulation. Using the presented approach, the coil design process is fully automated and can be done in few minutes. |
| Databáze: | OpenAIRE |
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