CONTACTLESS POWER TRANSMISSION DEVICE AND CONTACTLESS CHARGING SYSTEM

摘要

A contactless power transmission device (10), which charges a load (BA) via a contactless power receiving device (20) without contact, includes an output controller (14) that controls the AC power output to a first coil (L1) in such a manner that AC power is intermittently output to the first coil when in standy mode. When the contactless power receiving device (20) is detected by a detection unit (14), the output controller (14) transmits a confirmation signal to the contactless power receiving device (20) to confirm whether or not the load (BA) can be charged by outputting the same AC power as when charging to the first coil (L1), and modifying the waveform of said AC power. When a response signal indicating that charging is possible is received from the contactless power receiving device (20), the output controller (14) continues outputting AC power to the first coil (L1), thereby initiating charging.