WIRELESS POWER FEEDER, WIRELESS POWER RECEIVER, AND WIRELESS POWER TRANSMISSION SYSTEM, AND COIL
First Claim
1. A wireless power feeder that feeds power from a feeding coil to a receiving coil by wireless using a magnetic field coupling between the feeding coil and the receiving coil, the feeder comprising:
- the feeding coil formed so as to be rotated; and
a power transmission control circuit that supplies AC power to the feeding coil to make the feeding coil feed the AC power to the receiving coil,the power transmission control circuit rotating the feeding coil along the winding direction thereof to change the opposing area between the feeding coil and the receiving coil to thereby adjust the AC power to be supplied from the feeding coil to the receiving coil.
2 Assignments
0 Petitions
Accused Products
Abstract
A wireless power feeder feeds power from a feeding coil L2 to a receiving coil L3 by wireless using a magnetic field coupling between the feeding coil L2 and the receiving coil L3. The feeding coil L2 is formed so as to be rotated. A power transmission control circuit supplies AC power to the feeding coil L2 to make the feeding coil L2 feed the AC power to the receiving coil L3. The power transmission control circuit rotates the feeding coil L2 to change the opposing area between the feeding coil L2 and the receiving coil L3 as viewed in the axis direction of the feeding coil L2 to thereby adjust the AC power to be supplied from the feeding coil L2 to the receiving coil L3.
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Citations
13 Claims
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1. A wireless power feeder that feeds power from a feeding coil to a receiving coil by wireless using a magnetic field coupling between the feeding coil and the receiving coil, the feeder comprising:
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the feeding coil formed so as to be rotated; and a power transmission control circuit that supplies AC power to the feeding coil to make the feeding coil feed the AC power to the receiving coil, the power transmission control circuit rotating the feeding coil along the winding direction thereof to change the opposing area between the feeding coil and the receiving coil to thereby adjust the AC power to be supplied from the feeding coil to the receiving coil. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wireless power receiver that receives, at a receiving coil, AC power fed from a feeding coil by wireless using a magnetic field coupling between the feeding coil and the receiving coil, the receiver comprising:
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the receiving coil formed so as to be rotated; and a power receiving control circuit that outputs the AC power received by the receiving coil, the power receiving control circuit rotating the receiving coil along the winding direction thereof to change the opposing area between the feeding coil and the receiving coil to thereby adjust the AC power received by the receiving coil. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A wireless power transmission system for feeding power by wireless from a feeding coil to a receiving coil using a magnetic field coupling between the feeding coil and the receiving coil, comprising:
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a wireless power feeder and a wireless power receiver, the wireless power feeder including; the feeding coil; and a power transmission control circuit that supplies AC power to the feeding coil to make the feeding coil feed the AC power to the receiving coil, the wireless power receiver including; the receiving coil; and a power receiving control circuit that outputs the AC power received by the receiving coil, both or one of the feeding coil and receiving coil being formed so as to be rotated, both or one of the power transmission control circuit and power receiving control circuit rotating both or one of the feeding coil and receiving coil along the winding direction thereof to change the opposing area between the feeding coil and the receiving coil to thereby adjust the AC power received by the receiving coil.
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Specification