| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-contact power-feeding device that reduces an overcurrent occurring in a secondary-side circuit when the secondary-side circuit independently having a resonant circuit from a secondary coil is moved relatively closer to a primary coil magnetically coupled to the secondary-side circuit.SOLUTION: A resonant capacitor 25a and a passive element 25 are connected in series to a resonant coil 13, and switching elements 19 are connected to both ends of the passive element 25. For opening and closing the switching elements 19, duty control is performed according to a load 17 of a secondary coil 14, and a current flowing through the resonant coil 13 is limited to a constant value or less. |
