Title :
A novel contact-less battery charger for electric vehicles
Author :
Sugimori, K. ; Nishimura, Hideki
Author_Institution :
Nippon Electr. Ind. Co. Ltd., Ibaraki
Abstract :
A simple and reliable contactless battery charger for electric vehicle applications is proposed. The principle of the charger is based on the so-called one converter circuit for power factor correction. The converter also works as a high-frequency inverter. Charging conditions are effectively controlled by the frequency of a new type of magnetic multivibrator composed of two MOSFETs and two saturable reactors. As a result of experiments on a 1.7 kW output prototype charger, the authors achieved a charging efficiency of 87.4% at total one cycle charging, an overall efficiency of 90% and over 98% input power factor
Keywords :
AC-DC power convertors; DC-AC power convertors; battery chargers; electric vehicles; invertors; magnetic devices; multivibrators; power MOSFET; power convertors; power factor correction; power transformers; saturable core reactors; secondary cells; 1.7 kW; 87.4 percent; 90 percent; MOSFETs; applications; charging conditions; charging efficiency; contactless battery charger; electric vehicles; high-frequency inverter; input power factor; magnetic multivibrator; one converter circuit; power factor correction; saturable reactors; Batteries; Circuits; Electric vehicles; Frequency; Inductors; Inverters; MOSFETs; Power factor correction; Prototypes; Reactive power;
Conference_Titel :
Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE
Conference_Location :
Fukuoka
Print_ISBN :
0-7803-4489-8
DOI :
10.1109/PESC.1998.701953
