Integration of positioning antennas in wireless inductive charging power applications
First Claim
1. An apparatus for determining a position between a wireless power transmitter and a wireless power receiver, comprising:
- a first ferrite block having respective portions configured to be disposed in physical contact with each of adjacent second and third ferrite blocks separated by a first gap and with each of adjacent fourth and fifth ferrite blocks separated by a second gap; and
a plurality of detection loops wrapped around the first ferrite block such that none of the plurality of detection loops physically contact the second, third, fourth or fifth ferrite blocks when the respective portions of the first ferrite block are in physical contact with the second, third, fourth or fifth ferrite blocks.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for determining a position between a wireless power transmitter and a wireless power receiver is provided. The apparatus comprises a first ferrite block having respective portions configured to be disposed in physical contact with each of adjacent second and third ferrite blocks separated by a first gap and with each of adjacent fourth and fifth ferrite blocks separated by a second gap. The apparatus further comprises a plurality of detection loops wrapped around the first ferrite block such that none of the plurality of detection loops physically contact the second, third, fourth or fifth ferrite blocks when the respective portions of the first ferrite block are in physical contact with the second, third, fourth or fifth ferrite blocks. Each of the plurality of detection loops are wrapped around the first ferrite block in mutually perpendicular planes from one another.
21 Citations
30 Claims
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1. An apparatus for determining a position between a wireless power transmitter and a wireless power receiver, comprising:
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a first ferrite block having respective portions configured to be disposed in physical contact with each of adjacent second and third ferrite blocks separated by a first gap and with each of adjacent fourth and fifth ferrite blocks separated by a second gap; and a plurality of detection loops wrapped around the first ferrite block such that none of the plurality of detection loops physically contact the second, third, fourth or fifth ferrite blocks when the respective portions of the first ferrite block are in physical contact with the second, third, fourth or fifth ferrite blocks. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for determining a position between a wireless power transmitter and a wireless power receiver, comprising:
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sensing, utilizing each of a plurality of detection loops wrapped around a first ferrite block, amounts of magnetic flux in the first ferrite block flowing in respective directions normal to planes in which the plurality of detection loops are wound, and determining the position between the wireless power transmitter and the wireless power receiver based at least in part on the sensed amounts of magnetic flux, wherein the first ferrite block comprises respective portions configured to be disposed in physical contact with each of adjacent second and third ferrite blocks separated by a first gap and with each of adjacent fourth and fifth ferrite blocks separated by a second gap; and wherein the plurality of detection loops are wrapped around the first ferrite block such that none of the plurality of detection loops physically contact the second, third, fourth or fifth ferrite blocks when the respective portions of the first ferrite block are in physical contact with the second, third, fourth or fifth ferrite blocks. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method for fabricating an apparatus for determining a position between a wireless power transmitter and a wireless power receiver, the method comprising:
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wrapping each of a plurality of detection loops around a first ferrite block; and disposing the first ferrite block such that respective portions of the first ferrite block are in physical contact with each of adjacent second and third ferrite blocks separated by a first gap and with each of adjacent fourth and fifth ferrite blocks separated by a second gap, wherein the plurality of detection loops are wrapped around the first ferrite block such that none of the plurality of detection loops physically contact the second, third, fourth or fifth ferrite blocks. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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25. An apparatus for determining a position between a wireless power transmitter and a wireless power receiver, comprising:
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first means for channeling magnetic flux having respective portions configured to be disposed in physical contact with each of adjacent second and third means for channeling magnetic flux separated by a first gap and with each of adjacent fourth and fifth means for channeling magnetic flux separated by a second gap; and a plurality of means for detecting magnetic flux wrapped around the first means for channeling magnetic flux such that none of the plurality of means for detecting magnetic flux physically contact the second, third, fourth or fifth means for channeling magnetic flux when the respective portions of the first means for channeling magnetic flux are in physical contact with the second, third, fourth or fifth means for channeling magnetic flux. - View Dependent Claims (26, 27, 28, 29, 30)
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Specification