Fu, Y.; Zhu, Y.; Jiang, D.; Ji, B.; Peng, Z. Improved Design of PCB Coil for Magnetically Coupled Wireless Power Transfer. Electronics2024, 13, 426.
Fu, Y.; Zhu, Y.; Jiang, D.; Ji, B.; Peng, Z. Improved Design of PCB Coil for Magnetically Coupled Wireless Power Transfer. Electronics 2024, 13, 426.
Fu, Y.; Zhu, Y.; Jiang, D.; Ji, B.; Peng, Z. Improved Design of PCB Coil for Magnetically Coupled Wireless Power Transfer. Electronics2024, 13, 426.
Fu, Y.; Zhu, Y.; Jiang, D.; Ji, B.; Peng, Z. Improved Design of PCB Coil for Magnetically Coupled Wireless Power Transfer. Electronics 2024, 13, 426.
Abstract
In recent years, wireless power transfer (WPT) has progressed rapidly in both theory and commercialization abroad. However, existing research into WPT coil design for low-power devices is limited. This paper investigates coil structure using printed circuit board (PCB) for magnetic resonant coupling WPT to address this gap. Specifically, the impacts of key geometric parameters on the coil quality factor and coupling coefficient are analysed through models and simulations. Equivalent PCB coils were formed for mutual inductance models, and four basic compensation circuits were analysed. The impacts of changes in coil thickness, line width, turn spacing, and number of turns on the quality factor of PCB coils were analysed with a fixed outer diameter of the coil. In this paper, to mitigate the coil offset while retaining PCB manufacturing simplicity for practical uses, a dual layer PCB coil structure is proposed. The structure optimizated PCB coil could offer remarkable improvements in the WPT system for low power electronic devices.
Engineering, Electrical and Electronic Engineering
Copyright:
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