CONTACTLESS POWER SUPPLY SYSTEM AND POWER TRANSMISSION COIL FOR CONTACTLESS POWER SUPPLY SYSTEM
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United States of America Patent
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Issued Date -
Nov 21, 2013
app pub date -
Mar 8, 2013
filing date -
May 15, 2012
priority date (Note) -
Abandoned
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Abstract
A contactless power supply system includes a power transmission coil, a power receiving coil, and a center tap that is provided at the power transmission coil. Specifically, the power transmission coil has a first coil and a second coil. The first coil is configured with a first conducting wire that circularly extends from the center tap by winding in a first direction from a first internal circumference side to a first external circumference side. The second coil is configured with a second conducting wire that circularly extends from the center tap by winding in a second direction, which is opposite to the first direction, from a second internal circumference side to a second external circumference side. A first number of windings of the first coil is approximately the same as a second number of windings of the second coil.
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