Title :
Analytical design procedure for resonant inductively coupled wireless power transfer system with class-E2 DC-DC converter
Author :
Nagashima, Tomoharu ; Inoue, Ken ; Xiuqin Wei ; Bou, Elisenda ; Alarcon, Eduard ; Kazimierczuk, Marian K. ; Sekiya, Hiroo
Author_Institution :
Grad. Sch. of Adv. Integration Sci., Chiba Univ., Chiba, Japan
Abstract :
This paper presents a resonant inductive coupling wireless power transfer (RIC-WPT) system with a class-E2 dc-dc converter along with its analytical design procedure. By using the class-E inverter as a transmitter and the class-E rectifier as a receiver, the designed WPT system can achieve a high power-conversion efficiency because of the class-E ZVS/ZDS conditions satisfied in both the inverter and the rectifier. In the simulation results, the system achieved 65.9 % overall efficiency at 5 W (50 Ω) output power, coil distance 30 cm, and 5 MHz operating frequency. Additionally, the simulation results showed good agreement with the design specifications, which indicates the validity of the design procedure.
Keywords :
DC-DC power convertors; inductive power transmission; invertors; rectifiers; zero voltage switching; class-E ZVS/ZDS; class-E inverter; class-E rectifier; class-E2 DC-DC converter; distance 30 cm; frequency 5 MHz; power 5 W; receiver; resistance 50 ohm; resonant inductive coupling wireless power transfer system; transmitter; zero voltage switching; Coils; Couplings; Impedance; Inverters; Switches; Wireless communication; Zero voltage switching; class-E ZVS/ZDS conditions; class-E2 dc-dc converter; high overall efficiency; resonant inductive coupling; wireless power transfer;
Conference_Titel :
Circuits and Systems (ISCAS), 2014 IEEE International Symposium on
Conference_Location :
Melbourne VIC
Print_ISBN :
978-1-4799-3431-7
DOI :
10.1109/ISCAS.2014.6865078
