WIRELESS POWER TRANSMISSION DEVICE, AND MANUFACTURING METHOD FOR THE SAME

Japanese Patent JP2015133834

A

PROBLEM TO BE SOLVED: To provide: a wireless power transmission device capable of varying a value of an input impedance of the whole wireless power transmission device including a power supplied apparatus depending on a variation tendency of a load of the supplied apparatus, when the load of the power supplied apparatus varies; and a manufacturing method for the wireless power transmission device.SOLUTION: A wireless power transmission device includes a power supply resonator and a power reception resonator in which the value of a power transmission characteristic "S21" with respect to a power supply frequency has two peak bands. A power supply frequency of a power supplied to a power supply module is set to be within a power supply frequency band corresponding to either one of the two peak bands of the transmission characteristic "S21". At least the value of an input impedance with respect to the power supply frequency of the power supplied to the power supply module, of the wireless power transmission device including a power supplied apparatus is set so as to have two peak bands when the power supplied apparatus's load takes the maximum and the minimum values in its load variation range.

JP4803503	Electric motor Power supply method and equipment for vehicle engine
WO/2014/111972	NON-CONTACT POWER SUPPLY DEVICE
JPH10136587	POWER WAVE RECEIVER

TSUDA NAO
HATANAKA TAKEZO

JP2014004268A

July 23, 2015

January 14, 2014

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NITTO DENKO CORP

H02J17/00

JP2013017254A	2013-01-24
JP2012039800A	2012-02-23
JP2011147213A	2011-07-28
JP2013188016A	2013-09-19
JP2010239838A	2010-10-21
JP2010183810A	2010-08-19
JP2013240260A	2013-11-28
JP2013062895A	2013-04-04

Kaji/Suhara Patent Office

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