Title :
A magnetic coupled charger with no-load protection
Author :
Sakamoto, Hiroo ; Harada, Koosuke ; Abe, Hideaki ; Tokuomi, Saeko
Author_Institution :
Dept. of Electron., Kumamoto Inst. of Technol., Japan
fDate :
7/1/1998 12:00:00 AM
Abstract :
A novel magnetic coupled charger is proposed, that is suitable for small electric devices. In this charger, standby power is reduced for energy saving. Eddy current heating in metal placed near it, is reduced by using a feedback transformer. In this circuit, a power factor correction is also realized to be 99%
Keywords :
battery chargers; power factor correction; power transformers; protection; eddy current heating; energy saving; feedback transformer; magnetic coupled charger; no-load protection; power factor correction; small electric device; standby power; Coupling circuits; Eddy currents; MOSFET circuits; Magnetic devices; Power MOSFET; Power factor correction; Protection; Threshold voltage; Voltage control; Voltage-controlled oscillators;
Journal_Title :
Magnetics, IEEE Transactions on
