應用重疊式線圈於Qi無線充電器之研製

Implementation of the Qi’s Wireless Charger Using Overlapping-coils

詹國平(Guo-Ping Jhan)

指導教授 ： 陳宗成

國立虎尾科技大學/電機資訊學院/電機工程研究所在職專班/碩士(2014年)

https://doi.org/10.6827/NFU.2014.00186

摘要

本論文旨在研製一非定位式重疊式四線圈Qi無線充電器，目的為改善一次側充電墊的感應區，使感應區由原來一小圓形區域擴增為一長橢圓形區域，而讓消費者便利地使用該無線充電器。該充電器是應用重疊式四個線圈取代原本線圈，如此可以讓一次側充電墊感應區大幅增加，並且可維持原來無線充電之全部功能。所提出的Qi無線充電器使用兩組串聯線圈再並聯的四線圈組來取代原本單一線圈，是要讓Qi無線充電器的線圈電感值固定不變，該四線圈組的每個線圈都會產生感應區，然後將線圈組以重疊方式排列成一適當長條形，並在實驗後確定此方式排列之線圈組可以將感應區擴增為4.2倍，使原充電器轉成一方便且實用非定位式Qi無線充電器。

關鍵字

無線充電聯盟(WPC) ； 電磁感應 ； 半橋式換流器 ； 非定位式Qi無線充電器

並列摘要

This thesis develops a Qi’s non-positioning wireless charger with overlapping four coils. The purpose is to expand the sensing area of charger-pad from a small circle to a bigger oblong area. Consumers can operate the wireless charger conveniently. This charger is using overlapping coils to replace the original coil. So it can greatly increase the sensing area of the charger-pad. In addition, this charger also maintains all the functions of wireless charger. The proposed Qi’s wireless charger uses a four-coil group which uses two parallel circuits with two groups of series-coil in them to replace the original single coil. The purpose is to maintain the inductance of the coil. Every coil of the four-coil group produces a sensing area. Then this four coils will be overlapped to become a feasible long strip. After the experiment, the sensing area of the charger can increase to about 4.2 times than before by using this suitable four-coil group. Make the original charger become a convenient and practical Qi’s non-positioningwireless charger.

並列關鍵字

Wireless Power Consortium(WPC) ； Electromagnetic Induction ； Half-bridge Inverter ； Non-positioning Wireless Charger of Qi

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