JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Design and Implementation of a 100 W Receiver for Wireless Power Transfer Using Coupled Magnetic Resonance
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Design and Implementation of a 100 W Receiver for Wireless Power Transfer Using Coupled Magnetic Resonance
Kim, Seong-Min; Cho, In-Kui; Choi, Hyun-Chul;
  PDF(new window)
 Abstract
In this paper, a receiver for wireless power transfer is proposed. The receiver consists of a 100 W rectifier in 1.8 MHz frequency band, and a constant current charger. In particular, two kinds of protection circuits are installed in the rectifier. They are a over-voltage protection circuit which block the input voltages greater than 30 V and a active-dummy load which maintains the receiver input impedance by automatically consuming the remaining input power. The constant current charger is designed to charge the battery with a charging current of up to 1 A. A wireless charging system is fabricated using the proposed receiver. The system is composed of a 130 W transmitter, two magnetic resonator, and proposed receiver for charging a 48 V Li-Ion battery using the coupled magnetic resonance method. By the measurement result, the system efficiency is about 54 %.
 Keywords
Wireless Charging;Magnetic Resonance;Full-Bridge Receiver;Constant Current Charger;
 Language
Korean
 Cited by
 References
1.
A. Kurs et al., "Wireless power transfer via strongly coupled magnetic resonances", Science, vol. 317, pp. 83-86, Jul. 2007. crossref(new window)

2.
Dukju Ahn, Songcheol Hong, "Wireless power transfer resonance coupling amplification by load-modulation switching controller", IEEE Trans. Industrial Electronics, vol. 62, no. 2, pp. 898-909, Feb. 2015. crossref(new window)

3.
Andrew H. Bushnell, "Interfacing pulsed power systems to switching power supplies", IEEE International Power Modulator Conference, Jul. 2002.

4.
IRC Corp., "Resistors for power supply applications", http://www.newark.com/pdfs/techarticles/irc/irc_powerSupplyStudy.pdf

5.
S. Kim et al., "System level power control algorithm in wireless power transmission for reducing EMF", Proc. IEEE WPTC 2014, pp. 193-196, May 2014.