Title:
POWER TRANSMISSION DEVICE AND NON-CONTACT POWER SUPPLY SYSTEM
Document Type and Number:
Japanese Patent JP2019004691
Kind Code:
A
Abstract:
To achieve highly efficient non-contact power supply.SOLUTION: In a non-contact power supply system which can transmit power from a power transmission device to a power reception device by a magnetic field resonance method, the power transmission device has a plurality of power transmission side coils having mutually different shapes. Before actual power transmission, the power transmission device successively generates an alternating magnetic field onto a plurality of power transmission side coils on a trial basis. On the power reception device side, reception power at that time is successively detected, so that power related information based on the detection result is transferred to the power transmission device. Based on the power related information, the power transmission device selects, from among the plurality of power transmission side coils, a power transmission side coil to be used for the actual power transmission.SELECTED DRAWING: Figure 17
Inventors:
IKUTO YOSHIHIRO
Application Number:
JP2018106612A
Publication Date:
January 10, 2019
Filing Date:
June 04, 2018
Export Citation:
Assignee:
ROHM CO LTD
International Classes:
H02J50/40; H02J50/12; H02J50/80
Domestic Patent References:
| JP2017011954A | 2017-01-12 | |||
| JP2012191721A | 2012-10-04 |
Foreign References:
| WO2013114576A1 | 2013-08-08 | |||
| WO2016063507A1 | 2016-04-28 |
Attorney, Agent or Firm:
Sano patent office