WIRELESS POWER TRANSMISSION SYSTEM

WIPO Patent Application WO/2013/054800

A1

A power transmission device (101) has an active electrode (11), a passive electrode (13), and a reference potential electrode (12) that is connected to a reference potential, and a voltage generation circuit that applies voltage between the active electrode (11) and the passive electrode (13). A power receiving device (201) has an active electrode (21), a passive electrode (23), and a reference potential electrode (22) that is connected to a reference potential, and a rechargeable battery that is connected between the active electrode (21) and the passive electrode (23). The power transmission device (101) transmits power to the power receiving device (201) using capacitive coupling, wherein the active electrodes (11, 21) face each other with an insulator therebetween, and the passive electrodes (13, 23) face each other, and the reference potential electrodes (12, 22) face each other. Thus, a wireless power transmission system, which stabilizes the potential of the power transmission device and the power receiving device when power is transmitted from the power transmission device to the power receiving device, and which does not cause the power receiving device to malfunction, is provided.

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TAKAHASHI HIRONOBU (JP)
ICHIKAWA KEIICHI (JP)
IEKI TSUTOMU (JP)

PCT/JP2012/076162

April 18, 2013

October 10, 2012

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MURATA MANUFACTURING CO (JP)

H02J17/00

WO2010150317A1

2010-12-29

Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)

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