Electro-Magnetic Analysis of Near Field Wireless Power Transfer Modules
| Autor: | Chia-Chu Wu, 吳家駒 |
|---|---|
| Rok vydání: | 2014 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 102 Since mobile phones, electric vehicles and related applications vigorously emerge, wireless charging become an attractive technology for more convenient usage.Therefore, wireless power transmission league and protocol also appeared to promote this technology. The two main league are known as Wireless Power Consortium (WLC) and Alliance for Wireless Power (A4WP). The research of this article used the wireless power transmission module which developed by the ferrite vendor. We designed for inductors for differentleagues, combo inductors for Near Field Communication (NFC) and Wireless Power Consortium (WLC) in order to compare thesimulated and measured results. At first, we confirmed the accuracy of the simulation by comparing simulated data with experimental data and then built a simulation design guide.Secondly, due to the restriction of inductor configuration and matching circuit of each league, the quality factor of inductors becomes the primary issue of this technique. To solve the problem, we added ferrite materials as the substrate of the inductor and changed the structure of the substrate. Reducing proximity effects of the inductor occur in high frequency could lead to the decrease of resistance and increase the inductance value as well as the quality factor. The charging efficiency could also be improved. The errors between measurement and the simulation were under 5%; in other words, the inductor design can be optimized in the simulation environment instead of the time-consuming methodology by trial-and-error; hence, the manufacturing costs decreased. In this study, A4WP inductor was simulated through one-to-one characteristics. Based on the results, we expected to develop one-to-many in the near future. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
| Externí odkaz: |
|