Title :
A noncontact charger using a resonant converter with parallel capacitor of the secondary coil
Author :
Abe, Hideaki ; Sakamoto, Hiroshi ; Harada, Koosuke
Author_Institution :
Home Appliances R&D Centre, Matsushita Electr. Works Ltd., Osaka, Japan
Abstract :
A noncontact charging system using a resonant converter is presented in this paper, where the power transfer ability of a detachable transformer is improved by using a parallel capacitor connected to the secondary coil. A method to get the optimum value of the capacitance which would maximize the charging current is described. A method of application to the practical circuit such as a voltage resonant converter is also described
Keywords :
battery chargers; capacitance; capacitors; resonant power convertors; switching circuits; transformers; ZVS; capacitance; charging current maximisation; detachable transformer; noncontact charger; parallel capacitor; power transfer ability; rectification circuit; resonant converter; secondary coil; voltage resonant converter; zero voltage switching; Capacitance; Capacitors; Coils; Contacts; Coupling circuits; Home appliances; Magnetic circuits; Magnetic resonance; RLC circuits; Switching converters;
Journal_Title :
Industry Applications, IEEE Transactions on
