Title:
Non-contact power transmission device
Document Type and Number:
Japanese Patent JP6220944
Kind Code:
B2
Abstract:
A contactless power feeding system includes a power transmitting device and a power receiving device. The power transmitting device includes a first AC power source configured to generate an AC power with a first frequency, a second AC power source configured to generate an AC power with a second frequency which is different from the first frequency, a first electromagnetic induction coil, and a first resonant coil. The power receiving device includes a second resonant coil, a second electromagnetic induction coil, and a power storage unit. Power is wirelessly supplied to the power storage unit at the second frequency by a magnetic resonance phenomenon which occurs between the first resonant coil and the second resonant coil.
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| JPS6195424 | PORTABLE INPUT/OUTPUT DEVICE |
| WO/1988/006814 | IMPROVEMENTS IN OR RELATING TO D.C. to A.C. INVERTERS |
Inventors:
Koichiro Kamata
Application Number:
JP2016188253A
Publication Date:
October 25, 2017
Filing Date:
September 27, 2016
Export Citation:
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
H02J7/00; H02J50/12; H02J50/50; H02J50/80
Domestic Patent References:
| JP2013046561A | ||||
| JP2011062008A | ||||
| JP2010193598A | ||||
| JP2011101575A | ||||
| JP2011244641A | ||||
| JP2011029799A |
Foreign References:
| WO2010147168A1 | ||||
| WO2011077493A1 | ||||
| WO2010030005A1 |