Title:
POWER FEEDING APPARATUS AND POWER FEEDING SYSTEM
Document Type and Number:
Japanese Patent JP2014204603
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a power feeding apparatus capable of facilitating acquisition of a coupling coefficient in performing power transmission using magnetic fields.SOLUTION: The power feeding apparatus includes a power transmission coil for performing power transmission using magnetic fields, and a coupling coefficient calculation section that calculates a coupling coefficient between the power transmission coil and a power reception coil in a power feeding target apparatus. The coupling coefficient calculation section measures a frequency characteristic of input impedance under an inoperative state of a rectifier circuit in the power feeding target apparatus and calculates a coupling coefficient using a measurement result of the frequency characteristic.
Inventors:
BUNZEN KEIGO
Application Number:
JP2013080429A
Publication Date:
October 27, 2014
Filing Date:
April 08, 2013
Export Citation:
Assignee:
SONY CORP
International Classes:
H02J7/00
Attorney, Agent or Firm:
Patent business corporation wings international patent firm