WIRELESS POWER TRANSMISSION SYSTEM
First Claim
1. A wireless power transmission system for feeding power by wireless from a feeding coil to a receiving coil, comprising:
- the feeding coil;
a transmission control circuit that supplies AC power to the feeding coil at a drive frequency so as to make the feeding coil feed the AC power to the receiving coil;
the receiving coil;
a loading circuit that receives power from the receiving coil; and
a magnetic body that is disposed between the feeding coil and receiving coil,the magnetic body being disposed inside a space between coil surfaces of the feeding coil and receiving coil.
1 Assignment
0 Petitions
Accused Products
Abstract
To improve power transmission efficiency in wireless power feeding by using a magnetic body. A wireless power transmission system 100 feeds power by wireless from a feeding coil L2 to a receiving coil L3 based on a magnetic-field resonance phenomenon between the feeding coil L2 and receiving coil L3. A transmission control circuit 200 supplies AC power to the feeding coil L2 at a drive frequency so as to make the feeding coil L2 feed the AC power to the receiving coil L3. A magnetic body F is disposed between the feeding coil L2 and receiving coil L3. The magnetic body F is disposed in a space between coil surfaces of the feeding coil L2 and receiving coil L3.
22 Citations
9 Claims
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1. A wireless power transmission system for feeding power by wireless from a feeding coil to a receiving coil, comprising:
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the feeding coil; a transmission control circuit that supplies AC power to the feeding coil at a drive frequency so as to make the feeding coil feed the AC power to the receiving coil; the receiving coil; a loading circuit that receives power from the receiving coil; and a magnetic body that is disposed between the feeding coil and receiving coil, the magnetic body being disposed inside a space between coil surfaces of the feeding coil and receiving coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification