Title:
NON-CONTACT POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/131261
Kind Code:
A1
Abstract:
A power reception device 3 of a non-contact power supply device 1 has: a first resonant circuit 20 that resonates at a first frequency; a voltage detection circuit 27, which measures an output voltage outputted from the first resonant circuit 20, and obtains the measurement value of the output voltage; and a transmitter 28 that transmits, to a power transmission device 2, signals including information indicating the measurement value of the output voltage. The power transmission device 2 of the non-contact power supply device 1 has: a second resonant circuit 13 that resonates at a second frequency that is lower than the first frequency; a power supply circuit 10 that supplies the second resonant circuit 13 with alternating current power having an adjustable switching frequency; a receiver 16 that receives signals including information indicating the measurement value of the output voltage; and a control circuit 18 that controls, corresponding to the measurement value of the output voltage, the switching frequency so that the second resonant circuit 13 and the power supply circuit 10 continue soft switching operations.
Inventors:
NAKAO GORO (JP)
ZAITSU TOSHIYUKI (JP)
ZAITSU TOSHIYUKI (JP)
Application Number:
PCT/JP2017/038994
Publication Date:
July 19, 2018
Filing Date:
October 27, 2017
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO (JP)
International Classes:
H02J50/10; H02J50/80
Domestic Patent References:
| WO2011064879A1 | 2011-06-03 | |||
| WO2012101907A1 | 2012-08-02 | |||
| WO2016157853A1 | 2016-10-06 | |||
| WO2016016930A1 | 2016-02-04 | |||
| WO2017104450A1 | 2017-06-22 | |||
| WO2017094387A1 | 2017-06-08 |
Foreign References:
| JP2016036225A | 2016-03-17 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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