Method and apparatus for charging an electrically chargeable device utilizing resonating magnetic oscillations in the apparatus
First Claim
1. An apparatus for charging an electrically chargeable device, comprising:
- a core structure comprising;
a first portion common to each of a first magnetic flux circuit in the core structure and a second magnetic flux circuit in the core structure; and
a second portion included in the first magnetic flux circuit and not included in the second magnetic flux circuit;
a first coil wound on or around the first portion and configured to be driven by an alternating voltage; and
a second coil wound on or around the second portion and configured to be electrically coupled to the electrically chargeable device, wherein;
a first magnetic reluctance of the first magnetic flux circuit is less than a second magnetic reluctance of the second magnetic flux circuit when the first coil is driven with a first half-cycle of the alternating voltage;
the first magnetic reluctance of the first magnetic flux circuit is greater than the second magnetic reluctance of the second magnetic flux circuit when the first coil is driven with a second half-cycle of the alternating voltage; and
no coil is wound on or around any portion of the second magnetic flux circuit that is not included in the first portion.
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Accused Products
Abstract
An apparatus for charging an electrically chargeable device is provided. The apparatus comprises a core structure. The core structure comprises a first portion common to each of a first magnetic flux circuit in the core structure and a second magnetic flux circuit in the core structure. The core structure comprises a second portion included in the first magnetic flux circuit and not included in the second magnetic flux circuit. The apparatus comprises a first coil wound on or around the first portion and configured to be driven by an alternating voltage. The apparatus comprises a second coil wound on or around the second portion and configured to be electrically coupled to the electrically chargeable device.
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Citations
16 Claims
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1. An apparatus for charging an electrically chargeable device, comprising:
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a core structure comprising; a first portion common to each of a first magnetic flux circuit in the core structure and a second magnetic flux circuit in the core structure; and a second portion included in the first magnetic flux circuit and not included in the second magnetic flux circuit; a first coil wound on or around the first portion and configured to be driven by an alternating voltage; and a second coil wound on or around the second portion and configured to be electrically coupled to the electrically chargeable device, wherein; a first magnetic reluctance of the first magnetic flux circuit is less than a second magnetic reluctance of the second magnetic flux circuit when the first coil is driven with a first half-cycle of the alternating voltage; the first magnetic reluctance of the first magnetic flux circuit is greater than the second magnetic reluctance of the second magnetic flux circuit when the first coil is driven with a second half-cycle of the alternating voltage; and no coil is wound on or around any portion of the second magnetic flux circuit that is not included in the first portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14)
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9. A method for charging an electrically chargeable device, comprising:
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driving a first coil with an alternating voltage, the first coil wound on or around a first portion of a core structure common to each of a first magnetic flux circuit in the core structure and a second magnetic flux circuit in the core structure, wherein driving the first coil with the alternating voltage causes a second coil to generate a charging current for the electrically chargeable device, the second coil being wound on or around a second portion of the core structure that is included in the first magnetic flux circuit and not included in the second magnetic flux circuit, and wherein; a first magnetic reluctance of the first magnetic flux circuit is less than a second magnetic reluctance of the second magnetic flux circuit when the first coil is driven with a first half-cycle of the alternating voltage; the first magnetic reluctance of the first magnetic flux circuit is greater than the second magnetic reluctance of the second magnetic flux circuit when the first coil is driven with a second half-cycle of the alternating voltage; and no coil is wound on or around any portion of the second magnetic flux circuit that is not included in the first portion.
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15. A method for manufacturing an apparatus for charging an electrically chargeable device, comprising:
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providing a core structure comprising; a first portion common to each of a first magnetic flux circuit in the core structure and a second magnetic flux circuit in the core structure; and a second portion included in the first magnetic flux circuit and not included in the second magnetic flux circuit; winding a first coil on or around the first portion of a core structure; and winding a second coil on or around the second portion of the core structure, wherein; a first magnetic reluctance of the first magnetic flux circuit is less than a second magnetic reluctance of the second magnetic flux circuit when the first coil is driven with a first half-cycle of an alternating voltage; the first magnetic reluctance of the first magnetic flux circuit is greater than the second magnetic reluctance of the second magnetic flux circuit when the first coil is driven with a second half-cycle of the alternating voltage, the second portion included in the first magnetic flux circuit and not included in the second magnetic flux circuit; and no coil is wound on or around any portion of the second magnetic flux circuit that is not included in the first portion. - View Dependent Claims (16)
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Specification