Resonance-type non-contact power supply system, and adjustment method for matching unit during charging of resonance-type non-contact power supply system

Abstract

Power supply equipment () is provided with an AC power supply () and a primary-side resonance coil (). Movable body equipment () is provided with a secondary-side resonance coil (), which receives power from the primary-side coil, a rectifier (), which rectifies the received power, a charger () to which the rectified power is supplied, and a secondary battery (), which is connected to the charger. A primary matching unit () is provided between the AC power supply () and the primary-side resonance coil (). A secondary matching unit () is provided between the secondary-side resonance coil () and the rectifier (). A control unit is provided to either the power supply equipment () or the movable body equipment (). The control unit controls a primary matching unit adjustment unit () and a secondary matching unit adjustment unit (). In order to efficiently transfer power from the primary side to the secondary side when charging the secondary battery, the control unit initially adjusts the secondary matching unit (). After adjusting the secondary matching unit (), the control unit adjusts the first matching unit ().