Power transmission device and wireless power transmission system using the power transmission device

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United States of America Patent

PATENT NO 9466987
APP PUB NO 20140167523A1
SERIAL NO

14105678

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A power transmission device includes a power conversion circuit that outputs an alternating voltage in order to generate an alternating magnetic field and a control circuit used to control a frequency of the alternating voltage. The control circuit sets, in a predetermined frequency range, the frequency of the alternating voltage to a higher one of a first frequency at which transmission efficiency is highest and a second frequency at which a voltage generated in the power receiving device is highest, and performs power transmission.

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Patent Owner(s)

  • TDK CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kurata, Hitoyoshi Tokyo, JP 12 207
Tamaki, Kazutaka Tokyo, JP 14 90

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