Coil topologies for inductive power transfer
First Claim
1. A magnetic flux device configured to transmit or receive magnetic flux to or from a space beyond the magnetic flux device, the magnetic flux device comprising:
- at least a first electrically conductive coil and a second electrically conductive coil, the first coil having a first layer and second layer, the second coil having a third layer and fourth layer, the first layer substantially coplanar with the third layer; and
a magnetically permeable material having;
a substantially planar first surface,a second surface adjoined to the first surface at a first edge, anda third surface adjoined to the first surface at a second edge, the first coil extending over the first edge and intersecting a plane of the first surface, the second coil extending over the second edge and intersecting the plane of the first surface, wherein a first geometric plane defined by at least one turn of each of the first and second coils in the first and third layers, respectively, is parallel to the substantially planar first surface.
2 Assignments
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Accused Products
Abstract
This disclosure provides systems, methods and apparatus including a magnetic flux device configured to transmit or receive magnetic flux. In certain configurations, the magnetic flux device can include a first coil with a first layer and second layer, a second coil with a third layer and fourth layer, and a magnetically permeable material with the first coil extending over a first edge of the magnetically permeable material and the second coil extending over a second edge of the magnetically permeable material. In certain other configurations, the magnetic flux device can include a first conductive structure including a first coil and a second coil enclosing a first area and a second area, respectively. The magnetic flux device can further include a second conductive structure with at least a first planar portion of the first conductive structure being substantially coplanar with a second planar portion of the second conductive structure.
16 Citations
17 Claims
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1. A magnetic flux device configured to transmit or receive magnetic flux to or from a space beyond the magnetic flux device, the magnetic flux device comprising:
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at least a first electrically conductive coil and a second electrically conductive coil, the first coil having a first layer and second layer, the second coil having a third layer and fourth layer, the first layer substantially coplanar with the third layer; and a magnetically permeable material having; a substantially planar first surface, a second surface adjoined to the first surface at a first edge, and a third surface adjoined to the first surface at a second edge, the first coil extending over the first edge and intersecting a plane of the first surface, the second coil extending over the second edge and intersecting the plane of the first surface, wherein a first geometric plane defined by at least one turn of each of the first and second coils in the first and third layers, respectively, is parallel to the substantially planar first surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A magnetic flux device configured to transmit or receive magnetic flux to or from a space beyond the magnetic flux device, the magnetic flux device comprising:
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means for flowing at least one electric current, the flowing means comprising at least a first electrically conductive coil and a second electrically conductive coil, the first coil having a first layer and second layer, the second coil having a third layer and fourth layer, the first layer substantially coplanar with the third layer; means for modifying magnetic flux generated by the at least one electric current or which generates the at least one electric current, wherein the modifying means comprises a magnetically permeable material having a substantially planar first surface, a second surface adjoined to the first surface at a first edge, and a third surface adjoined to the first surface at a second edge, wherein the first coil extends over the first edge and intersects a plane of the first surface, and the second coil extends over the second edge and intersects the plane of the first surface, and wherein a first geometric plane defined by at least one turn of each of the first and second coils in the first and third layers, respectively, is parallel to the substantially planar first surface.
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Specification