WIRELESS POWER TRANSMITTING APPARATUS AND WIRELESS POWER RECEIVING APPARATUS
First Claim
1. A wireless power transmitting apparatus for wirelessly transmitting power to a wireless power receiving apparatus, the wireless power transmitting apparatus comprising:
- a transmitting coil for transmitting the power;
a hall sensor for sensing a change width of flux density caused by the wireless power receiving apparatus; and
a controller for comparing the sensed change width of the flux density with a predetermined critical value determine whether to transmit the power, whereinmagnets provided in the wireless power transmitting apparatus and the wireless power receiving apparatus are disposed such that polarities of the magnets are different from each other at opposite faces thereof.
3 Assignments
0 Petitions
Accused Products
Abstract
A wireless power transfer system is disclosed. A wireless power transmitting apparatus for wirelessly transmitting power to a wireless power receiving apparatus includes a transmitting coil for transmitting the power, a hall sensor for sensing a change width of flux density caused y the wireless power receiving apparatus, and a controller for comparing the sensed change width of the flux density with a predetermined critical value to determine whether to transmit the power, wherein magnets provided in the wireless power transmitting apparatus and the wireless power receiving apparatus are disposed such that polarities of the magnets are different from each other at opposite faces thereof. In the wireless power transfer system, the magnets having polarities are disposed in the wireless power transmitting apparatus and the wireless power receiving apparatus. Consequently, the wireless power transmitting apparatus more effectively senses the change width of the flux density to wirelessly transfer power to the wireless power receiving apparatus.
21 Citations
14 Claims
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1. A wireless power transmitting apparatus for wirelessly transmitting power to a wireless power receiving apparatus, the wireless power transmitting apparatus comprising:
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a transmitting coil for transmitting the power; a hall sensor for sensing a change width of flux density caused by the wireless power receiving apparatus; and a controller for comparing the sensed change width of the flux density with a predetermined critical value determine whether to transmit the power, wherein magnets provided in the wireless power transmitting apparatus and the wireless power receiving apparatus are disposed such that polarities of the magnets are different from each other at opposite faces thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A wireless power receiving apparatus for wirelessly receiving power from a wireless power transmitting apparatus, the wireless power receiving apparatus comprising:
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a receiving coil for receiving the power; and a second magnet for generating flux density having a predetermined intensity at one side of a face thereof opposite to the wireless power transmitting apparatus, wherein a first magnet provided in the wireless power transmitting apparatus and the second magnet are disposed such that polarities of the magnets are different from each other at opposite faces thereof. - View Dependent Claims (11, 12, 13, 14)
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Specification