6.78MHz Capacitive Coupling Wireless Power Transfer System

Kang Hyun Yi

6.78MHz Capacitive Coupling Wireless Power Transfer System

Kang Hyun Yi

Vol. 15, No. 4, pp. 987-993, Jul. 2015

10.6113/JPE.2015.15.4.987

6.78Mz

Capacitive Coupling Power Transfer

Class D inverter

wireless power transfer

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Abstract

Wireless power transfer technologies typically include inductive coupling, magnetic resonance, and capacitive coupling methods. Among these methods, capacitive coupling wireless power transfer (CCWPT) has been studied to overcome the drawbacks of other approaches. CCWPT has many advantages such as having a simple structure, low standing power loss, reduced electromagnetic interference (EMI) and the ability to transfer power through metal barriers. In this paper, the CCWPT system with 6.78MHz class D inverter is proposed and analyzed. The proposed system consists of a 6.78MHz class D inverter with a LC low pass filter, capacitor between a transmitter and a receiver, and impedance transformers. The system is verified with a prototype for charging mobile devices.

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Cite this article

[IEEE Style]

K. H. Yi, "6.78MHz Capacitive Coupling Wireless Power Transfer System," Journal of Power Electronics, vol. 15, no. 4, pp. 987-993, 2015. DOI: 10.6113/JPE.2015.15.4.987.

[ACM Style]

Kang Hyun Yi. 2015. 6.78MHz Capacitive Coupling Wireless Power Transfer System. Journal of Power Electronics, 15, 4, (2015), 987-993. DOI: 10.6113/JPE.2015.15.4.987.