Title:
NON-CONTACT POWER SUPPLY DEVICE
Document Type and Number:
Japanese Patent JP2019176565
Kind Code:
A
Abstract:
To provide a non-contact power supply device that can prevent energy loss, while preventing an excessive increase in output voltage from a device on a power reception side.SOLUTION: When a measured value of an output voltage becomes equal to or more than an upper threshold, the output voltage being obtained by rectifying a power received via a resonance circuit 20 having a receiving coil 21 that receives a power from a transmitting coil 14 of a power transmission device 2, and a resonance capacitor 22 that is connected to the receiving coil 21, a power receiving device 3 of a non-contact power supply device 1 short-circuits a resonance prevention coil 30 that is provided such that it can establish electromagnetic coupling with the receiving coil 21, and notifies the power transmission device 2 of an abnormality in output voltage. When notified of the abnormality in output voltage, the power transmission device 2 changes at least one of the voltage and switching frequency of an AC power applied to the transmitting coil 14.SELECTED DRAWING: Figure 1
Inventors:
NAKAO GORO
KAWAI YUSUKE
NOMURA TOKUJI
ZAITSU TOSHIYUKI
KAWAI YUSUKE
NOMURA TOKUJI
ZAITSU TOSHIYUKI
Application Number:
JP2018060060A
Publication Date:
October 10, 2019
Filing Date:
March 27, 2018
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO
International Classes:
H02J50/12; H02J50/80
Domestic Patent References:
| JP2017225232A | 2017-12-21 | |||
| JP2017511101A | 2017-04-13 | |||
| JP2013536664A | 2013-09-19 | |||
| JP2014023328A | 2014-02-03 |
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mitsuhashi
Tomohiro Minamiyama
Koichi Itsubo
Tsutomu Kono
Shinji Mitsuhashi
Tomohiro Minamiyama
Koichi Itsubo
Tsutomu Kono