Design and implementation of a contact-less power charger for robot applications. - Shih-Jen Cheng; Huang-Jen Chiu; Yu-Kang Lo; Shu-Wei Kuo; Kuo-Kuang Jen; Kuo-Sheng Fu; Gwo-Huei You; Kun-Feng Chen; Chien-Min Kao (Int. J. Circuit Theory Appl., 2014)