COIL UNIT AND CONTACTLESS ELECTRIC POWER TRANSMISSION DEVICE

A coil unit configured to transmit or receive electric power by electromagnetic induction in a noncontact manner, including: a coil into or from both terminals of which a high-frequency voltage is input or output; a metal conductor placed near the coil; and a first capacitor and a second capacitor c...

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Bibliographic Details
Main Authors MIYASHITA, NORIHIRO, OMORI, YOSHIHARU, SADAKATA, HIDEKI, FUJITA, ATSUSHI
Format Patent
LanguageEnglish
French
German
Published 17.02.2016
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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Summary:A coil unit configured to transmit or receive electric power by electromagnetic induction in a noncontact manner, including: a coil into or from both terminals of which a high-frequency voltage is input or output; a metal conductor placed near the coil; and a first capacitor and a second capacitor connected to the terminals of the coil, wherein the ratio of the capacitance between the first capacitor and the second capacitor is set to a value at which a current induced into the metal conductor due to capacitance coupling when a high-frequency voltage is input into or output from the coil is reduced.
Bibliography:Application Number: EP20120846021