A shunt-series mixed resonant coupled structure for the wireless power transfer (WPT) applications is proposed. If the coils are designed to have proper inductance values, the power transfer efficiency depending on distance has proportional relation only to the shunt capacitors. It enables that the proposed structure facilitates tracking the maximum WPT efficiency according to distance. In the experiment, two pairs of resonant square coils on PCB with different turn ratio (5/10 turn) are compared for 6.78 MHz operation. Both coils have almost same maximum WPT efficiency by optimizing the series and shunt capacitors. But the 10-turn coil only demonstrates aforementioned relation. The proposed structure with 10-turn coil shows that the efficiency of 77.7 % is achieved at a distance of 30 mm.
|Title of host publication
|2016 IEEE International Conference on Consumer Electronics, ICCE 2016
|Institute of Electrical and Electronics Engineers Inc.
|Number of pages
|Published - 2016 Mar 10
|IEEE International Conference on Consumer Electronics, ICCE 2016 - Las Vegas, United States
Duration: 2016 Jan 7 → 2016 Jan 11
|IEEE International Conference on Consumer Electronics, ICCE 2016
|16/1/7 → 16/1/11
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering