Title:
WIRELESS POWER SUPPLY SYSTEM, POWER TRANSMISSION DEVICE, AND POWER TRANSMISSION METHOD
Document Type and Number:
Japanese Patent JP2015084608
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To identify the state of a load in a power reception device by a power transmission device without acquiring information from the power reception device.SOLUTION: A wireless power supply system 100 comprises a power transmission device 110 and a power reception device 130 for receiving supply of power from the power transmission device 110 by a magnetic field resonance method. The power transmission device 110 comprises a power supply 111 for generating power, a power transmission unit 113 for transmitting the power generated by the power supply 111 to the power reception device 130, a reflected power detection unit 112 for detecting a value of reflected power obtained in the power transmission unit 113, and a control unit 115 for determining the state of a load in the power reception device 130 from the value of the reflected power detected by the reflected power detection unit 112.
Inventors:
OKAWA KATSUTAKA
Application Number:
JP2012025912A
Publication Date:
April 30, 2015
Filing Date:
February 09, 2012
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H02J17/00
Attorney, Agent or Firm:
Minoru Maeda
Youichi Yamagata
Masahiko Shinohara
Youichi Yamagata
Masahiko Shinohara
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