RESONANCE-TYPE NON-CONTACT POWER SUPPLY SYSTEM, AND ADJUSTMENT METHOD FOR MATCHING UNIT DURING CHARGING OF RESONANCE-TYPE NON-CONTACT POWER SUPPLY SYSTEM

摘要

Power supply equipment (10) is provided with an AC power supply (11) and a primary side resonance coil (13b). Portable equipment (20) is provided with: a secondary side resonance coil (21b) which receives power from the primary side coil; a rectifier (23) which rectifies the received power; a charger (24) to which the rectified power is supplied; and a secondary battery (25) which is connected to the charger. A primary matching unit (12) is provided between the AC power supply (11) and the primary side resonance coil (13b). A secondary matching unit (22) is provided between the secondary side resonance coil (21b) and the rectifier (23). In order to efficiently transfer power from the primary side to the secondary side when charging the secondary battery, a control unit, which controls a primary matching unit adjustment unit (14) and a secondary matching unit adjustment unit (26) so as to initially adjust the secondary matching unit (22), and after adjusting the secondary matching unit (22) to adjust the first matching unit (12), is provided to either the power supply equipment (10) or the portable equipment (20).