WIRELESS POWER TRANSMISSION DEVICE, POWER RECEPTION DEVICE AND POWER TRANSMISSION DEVICE OF WIRELESS POWER TRANSMISSION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a wireless power transmission device capable of suppressing harmonics by simple means and control.SOLUTION: A power reception device 2 of a wireless power transmission device for transmitting power by using a power transmission coil 12a and a power reception coil 20a arranged in non-contact has the power reception coil 20a arranged in non-contact with the power transmission coil 12a, and generating power by a magnetic field generated in the power transmission coil 12a, a filter 20c for cutting harmonics, a rectifier circuit 21 for rectifying power generated in the power reception coil 20a, and a battery 23 being charged with power rectified by the rectifier circuit 21. The filter 20c has such characteristics that the input impedance is inverted for the load impedance.SELECTED DRAWING: Figure 1