POWER TRANSMISSION SYSTEM - MURATA MANUFACTURING CO

Title:

POWER TRANSMISSION SYSTEM

Document Type and Number:

WIPO Patent Application WO/2013/073508

Kind Code:

A1

Abstract:

Capacitance (Cp) is the capacitance to be generated between a passive electrode at a power transmission apparatus side and a passive electrode at a power reception apparatus side, and capacitance (Ca) is the capacitance to be generated between an active electrode at the power transmission apparatus side and an active electrode at the power reception apparatus side. When the impedance of a first element (16x) is indicated as Z1, the impedance of a second element (16y) is indicated as Z2, the impedance of a series circuit consisting of the capacitance (Ca) and a load (RL) is indicated as Z3, and the impedance of the capacitance (Cp) is indicated as Z4, then a bridge circuit consisting of Z1 to Z4 is connected to the secondary side of a step-up transformer (13T). The potential of a power reception apparatus side reference potential point (RG) is made to be equivalent to the ground potential by prescribing the plurality of impedance (Z1 to Z4) such that this bridge circuit is balanced. In such a way, fluctuations in the power reception apparatus side reference potential is reduced, reducing noise, and the behavior of a load circuit at the power reception apparatus side is stabilized.

Inventors:

ICHIKAWA KEIICHI (JP)
GOMA SHINJI (JP)
SUESADA TSUYOSHI (JP)
BONDAR HENRI (JP)

Application Number:

PCT/JP2012/079323

Publication Date:

May 23, 2013

Filing Date:

November 13, 2012

Export Citation:

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Assignee:

MURATA MANUFACTURING CO (JP)

International Classes:

H02J17/00

Domestic Patent References:

WO2010150317A1	2010-12-29
WO2012086411A1	2012-06-28

Foreign References:

JP2007252027A	2007-09-27
JP2012050314A	2012-03-08
JP2009531009A	2009-08-27

Other References: