Wireless Charging of a Metal-Body Device
| Autor: | Francesco Carobolante, Nathan Seongheon Jeong |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Engineering
Radiation business.industry 020208 electrical & electronic engineering Transmitter Electrical engineering 020206 networking & telecommunications 02 engineering and technology Condensed Matter Physics Inductive charging Inductance Resonator Machining Hardware_GENERAL Heat generation 0202 electrical engineering electronic engineering information engineering Wireless Electrical and Electronic Engineering business Mobile device |
| Zdroj: | IEEE Transactions on Microwave Theory and Techniques. 65:1077-1086 |
| ISSN: | 1557-9670 0018-9480 |
| DOI: | 10.1109/tmtt.2017.2673820 |
| Popis: | Conventional tightly coupled inductive charging has been popular in the mobile device market for years. However, tightly coupled solutions have been unable to efficiently charge a metal encased device due to substantial heat generation. In this paper, we demonstrate that loosely coupled inductive charging technology is a viable solution to charge a metal encased device. Ample power can be delivered through the metal case with negligible case heating. Our prototype is built by machining a lump of aluminum which is attached to a commercial smart phone. Resonator coupling efficiency is measured to be 90% with a certified AirFuel Alliance transmitter. Measured power to a load is 8.2 W, which is suitable for mobile devices. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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