Title :
Bi-directional wireless charging between portable devices
Author :
Miura, Shun ; Nishijima, K. ; Nabeshima, T.
Author_Institution :
Dept. of Electr. & Electron. Eng., Oita Univ., Oita, Japan
Abstract :
In order to support for empty battery of portable devices with very important and urgent situations, a bi-directional wireless charging between portable devices is tested under WPC Qi specifications. The bi-directional charging is simply achieved by adding the switching elements across the rectifier diodes. As an experimental result of a prototype, system efficiencies of about 70% are obtained at an output power of 2.5W with 2mm air gap and 0~8mm lateral transition conditions.
Keywords :
air gaps; battery chargers; diodes; secondary cells; WPC Qi specification; air gap; bidirectional wireless charging; lateral transition condition; portable devices; power 2.5 W; rectifier diode; size 2 mm; switching element; Batteries; Bidirectional control; Prototypes; RLC circuits; Receivers; Transmitters; Wireless communication; bi-directional; efficiency; portable devices; wireless charging;
Conference_Titel :
Renewable Energy Research and Applications (ICRERA), 2013 International Conference on
Conference_Location :
Madrid
DOI :
10.1109/ICRERA.2013.6749857
