An Impedance Matching Method for Fast System Charging in Wireless Power Transfer 


Vol. 43,  No. 11, pp. 1771-1775, Nov.  2018
10.7840/kics.2018.43.11.1771


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  Abstract

In this paper, we mathematically formulate a wireless power transfer (WPT) system with N receivers using an equivalent circuit model and derive a system charging time. Based on the derived equations, we confirm that the system charging time increases exponentially as the number of receivers increases, and also propose an impedance matching method to solve this problem. In the proposed method, the receivers achieve the same efficiency and charging time regardless of their distances from a transmitter. Through circuit-level simulations with Advanced Design System, we demonstrate the accuracy of our analysis, and confirm that the proposed method reduces the system charging time remarkably compared to the conventional method.

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  Cite this article

[IEEE Style]

K. Lee and H. Choi, "An Impedance Matching Method for Fast System Charging in Wireless Power Transfer," The Journal of Korean Institute of Communications and Information Sciences, vol. 43, no. 11, pp. 1771-1775, 2018. DOI: 10.7840/kics.2018.43.11.1771.

[ACM Style]

Kisong Lee and Hyun-Ho Choi. 2018. An Impedance Matching Method for Fast System Charging in Wireless Power Transfer. The Journal of Korean Institute of Communications and Information Sciences, 43, 11, (2018), 1771-1775. DOI: 10.7840/kics.2018.43.11.1771.

[KICS Style]

Kisong Lee and Hyun-Ho Choi, "An Impedance Matching Method for Fast System Charging in Wireless Power Transfer," The Journal of Korean Institute of Communications and Information Sciences, vol. 43, no. 11, pp. 1771-1775, 11. 2018. (https://doi.org/10.7840/kics.2018.43.11.1771)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880