Title :
30 W capacitive wireless power transfer system with 5.8 pF coupling capacitance
Author :
Chieh-Kai Chang ; Da Silva, Guilherme Goularte ; Kumar, Ashish ; Pervaiz, Saad ; Afridi, Khurram K.
Author_Institution :
Univ. of Colorado, Boulder, CO, USA
Abstract :
This paper presents a new capacitive wireless power transfer (WPT) system that achieves effective power transfer even with very low values of coupling capacitance between two metal plates separated by an air-gap. A prototype of the proposed capacitive WPT system has been built and shown to transfer 30 W across two 5-cm by 5-cm metal plates separated by an air-gap of 0.5 cm. The power transfer per unit capacitance of 5.5 W/pF achieved by this system is 20 times greater than the highest value previously reported in literature.
Keywords :
inductive power transmission; capacitance 5.8 pF; capacitive WPT; capacitive wireless power transfer system; coupling capacitance; power 30 W; size 5 cm; Air gaps; Capacitance; Couplings; Inductors; Inverters; Prototypes; Wireless communication; Capacitive Power Transfer; Wireless Power Transfer;
Conference_Titel :
Wireless Power Transfer Conference (WPTC), 2015 IEEE
Conference_Location :
Boulder, CO
DOI :
10.1109/WPT.2015.7140184
