Title:
CONTACTLESS POWER-FEEDING DEVICE AND CONTACTLESS POWER-FEEDING SYSTEM USING SAME
Document Type and Number:
WIPO Patent Application WO/2016/017142
Kind Code:
A1
Abstract:
This invention addresses the problem of determining which frequency region within resonance characteristics an operating frequency lies in. This contactless power-feeding device (2) is provided with an inverter circuit, a primary-side resonance unit, a magnetic-field detection unit (25), and a control unit. The inverter circuit converts DC power to AC power and outputs said AC power. The primary-side resonance unit comprises the following: a solenoid-type primary-side coil (L1) that receives the AC power outputted by the inverter circuit and produces a magnetic flux; and a primary-side capacitor that, together with the solenoid-type primary-side coil (L1), forms a primary-side resonant circuit. The magnetic-field detection unit (25) detects a magnetic field. On the basis of the results of the detection performed by the magnetic-field detection unit (25), the control unit executes a determination process that determines the correlation between the operating frequency of the inverter circuit and the resonance characteristics of the primary-side resonance unit.
Inventors:
NAKAZAWA KAZUSHI
TAMURA HIDEKI
INAKAGATA SATORU
TAMURA HIDEKI
INAKAGATA SATORU
Application Number:
PCT/JP2015/003757
Publication Date:
February 04, 2016
Filing Date:
July 27, 2015
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H02J17/00
Foreign References:
| JP2010239847A | 2010-10-21 | |||
| JP2013240263A | 2013-11-28 | |||
| JP2013153627A | 2013-08-08 | |||
| JP2009089465A | 2009-04-23 |
Attorney, Agent or Firm:
NISHIKAWA, Yoshikiyo et al. (JP)
Yoshikiyo Nishikawa (JP)
Yoshikiyo Nishikawa (JP)
Download PDF:
Previous Patent: ELECTRONIC DEVICE
Next Patent: CONTACTLESS POWER-FEEDING DEVICE AND CONTACTLESS POWER-FEEDING SYSTEM USING SAME
Next Patent: CONTACTLESS POWER-FEEDING DEVICE AND CONTACTLESS POWER-FEEDING SYSTEM USING SAME