Title:
WIRELESS POWER TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2014/148369
Kind Code:
A1
Abstract:
A power transmission apparatus (101) has capacitors (31, 32) that are connected in series between an active electrode (11) and a passive electrode (12). A power receiving apparatus (201) has capacitors (33, 34) that are connected in series between an active electrode (21) and a passive electrode (22). When a capacitance between the active electrodes (11, 21) is represented by Caa, a capacitance between the passive electrodes (12, 22) is represented by Cpp, and reactance values of the capacitors (31, 32, 33, 34) are represented by X1, X2, X3 and X4, respectively, the active electrodes (11, 21), the passive electrodes (12, 22), and the capacitors (31, 32, 33, 34) are set to satisfy the following formulae: Cpp/Caa=X1/X2=X3/X4 and Cpp≥Caa. Consequently, a wireless power transmission system capable of stabilizing operations of a load circuit on the power receiving apparatus side is provided.
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Inventors:
ICHIKAWA KEIICHI (JP)
SUESADA TSUYOSHI (JP)
SAKAI HIRONORI (JP)
SUESADA TSUYOSHI (JP)
SAKAI HIRONORI (JP)
Application Number:
PCT/JP2014/056837
Publication Date:
September 25, 2014
Filing Date:
March 14, 2014
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H02J17/00
Domestic Patent References:
| WO2013073508A1 | 2013-05-23 | |||
| WO2013001569A1 | 2013-01-03 | |||
| WO2012157011A1 | 2012-11-22 |
Attorney, Agent or Firm:
Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
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