Power transmitting coil and wireless power transmitting apparatus
First Claim
1. A wireless power transmitting coil comprising;
- at least one first coil wound in a first direction in which, when the wireless power transmitting coil transmits a first power, a current of the first coil flows in the first direction; and
at least one second coil wound in a second direction, opposite to the first direction, and concentrically around the first coil on the same plane and configured to contact an outer side of the first coil so that when the wireless power transmitting coil transmits a second power, a current of the second coil flows in the second direction,wherein the first coil and the second coil are planar spiral coils,wherein the first power and the second power are selectively supplied to the first coil and the second coil according to a position of a power receiving coil of a power receiving apparatus,wherein the first power and the second power are supplied to the first coil and the second coil when the power receiving coil is detected both on the first coil and the second coil,wherein the first power is supplied to the first coil only when the power receiving coil is detected on the first coil only, andwherein the second power is supplied to the second coil only when the power receiving coil is detected on the second coil only.
2 Assignments
0 Petitions
Accused Products
Abstract
Disclosed herein are a power transmitting coil used to wirelessly transmit a power and a wireless power transmitting apparatus wirelessly transmitting a power using the power transmitting coil. The power transmitting coil includes at least one first coil mounted on a central portion of a core in which, when the power transmitting coil transmits a power, a current flows in a first direction; and at least one second coil disposed at an outer side of the first coil in which, when the power transmitting coil transmits a power, a current flows in a second direction opposite to the first direction. The wireless power transmitting apparatus wirelessly transmits the power using the power transmitting coil including the first coil and the second coil.
25 Citations
10 Claims
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1. A wireless power transmitting coil comprising;
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at least one first coil wound in a first direction in which, when the wireless power transmitting coil transmits a first power, a current of the first coil flows in the first direction; and at least one second coil wound in a second direction, opposite to the first direction, and concentrically around the first coil on the same plane and configured to contact an outer side of the first coil so that when the wireless power transmitting coil transmits a second power, a current of the second coil flows in the second direction, wherein the first coil and the second coil are planar spiral coils, wherein the first power and the second power are selectively supplied to the first coil and the second coil according to a position of a power receiving coil of a power receiving apparatus, wherein the first power and the second power are supplied to the first coil and the second coil when the power receiving coil is detected both on the first coil and the second coil, wherein the first power is supplied to the first coil only when the power receiving coil is detected on the first coil only, and wherein the second power is supplied to the second coil only when the power receiving coil is detected on the second coil only. - View Dependent Claims (2, 3)
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4. A wireless power transmitting apparatus comprising:
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a power transmitting unit which switches a direct current (DC) power to generate an alternate current (AC) power; and a core assembly which wirelessly transmits the AC power generated by the power transmitting unit, wherein the core assembly comprises; a power transmitting coil having the AC power supplied thereto; and a core upon which the power transmitting coil is seated, the power transmitting coil comprising; at least one first coil wound in a first direction in which, when the power transmitting coil transmits a first power, a current of the first coil flows in the first direction; and at least one second coil wound in a second direction, opposite to the first direction, and concentrically around the first coil on the same plane and configured to contact an outer side of the first coil so that when the power transmitting coil transmits a second power, a current of the second coil flows in the second direction, wherein the first coil and the second coil are planar spiral coils, wherein the first power and the second power are selectively supplied to the first coil and the second coil according to a position of a power receiving coil of a power receiving apparatus, wherein the first power and the second power are supplied to the first coil and the second coil when the power receiving coil is detected both on the first coil and the second coil, wherein the first power is supplied to the first coil only when the power receiving coil is detected on the first coil only, and wherein the second power is supplied to the second coil only when the power receiving coil is detected on the second coil only. - View Dependent Claims (5, 6)
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7. A wireless power transmitting apparatus comprising:
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a power transmitting unit which switches a DC power to generate an AC power; a core assembly comprising a power transmitting coil which wirelessly transmits the AC power generated by the power transmitting unit, and a core upon which the power transmitting coil is seated; and at least one switching unit which links the power transmitting unit and the power transmitting coil of the core assembly and which switches the AC power, wherein the power transmitting coil comprises; at least one first coil wound in a first direction in which, when the power transmitting coil transmits a first power, a current of the first coil flows in the first direction; and at least one second coil wound in a second direction, opposite to the first direction, and concentrically around the first coil on the same plane and configured to contact an outer side of the first coil so that when the power transmitting coil transmits a second power, a current of the second coil flows in the second direction, wherein the first coil and the second coil are planar spiral coils, wherein the switching unit switches the AC power under a control of the power transmitting unit to selectively supply the first power and the second power to the first coil and the second coil according to a position of a power receiving coil of a power receiving apparatus by the switching unit, wherein the first power and the second power are supplied to the first coil and the second coil when the power receiving coil is detected both on the first coil and the second coil, wherein the first power is supplied to the first coil only when the power receiving coil is detected on the first coil only, and wherein the second power is supplied to the second coil only when the power receiving coil is detected on the second coil only. - View Dependent Claims (8, 9, 10)
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Specification