Wireless power source and method for simultaneous, non-radiative, inductive, wireless power transfer to two or more devices to be charged
First Claim
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1. A wireless power source for simultaneous, non-radiative, inductive, wireless power transfer to two or more devices to be powered, the wireless power source comprising:
- a set of transmitter coils for generating an electromagnetic field in a three-dimensional charging space, wherein the set of transmitter coils includes a first transmitter coil and a second transmitter coil arranged such that a first axis of the first transmitter coil is not parallel to a second axis of the second transmitter coil; and
a controller connected to the set of transmitter coils for controlling the set of transmitter coils, including the first and second transmitter coils, to rotate the electromagnetic field in the charging space around a rotational axis wherein the electromagnetic field in the charging space around the rotational axis is generated by superimposing a first electromagnetic field generated by the first transmitter coil parallel to the first axis with a second electromagnetic field generated by the second transmitter coil parallel to the second axis.
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Abstract
A wireless power source 1 for simultaneous, non-radiative, inductive, wireless power transfer to two or more devices to be charged. The wireless power source 1 comprises a set of transmitter coils for generating an electromagnetic field 3 in a three-dimensional charging space 2 and a controller connected to the set of transmitter coils for controlling the set of transmitter coils to rotate the electromagnetic field 3 in the charging space around a rotational axis.
6 Citations
20 Claims
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1. A wireless power source for simultaneous, non-radiative, inductive, wireless power transfer to two or more devices to be powered, the wireless power source comprising:
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a set of transmitter coils for generating an electromagnetic field in a three-dimensional charging space, wherein the set of transmitter coils includes a first transmitter coil and a second transmitter coil arranged such that a first axis of the first transmitter coil is not parallel to a second axis of the second transmitter coil; and a controller connected to the set of transmitter coils for controlling the set of transmitter coils, including the first and second transmitter coils, to rotate the electromagnetic field in the charging space around a rotational axis wherein the electromagnetic field in the charging space around the rotational axis is generated by superimposing a first electromagnetic field generated by the first transmitter coil parallel to the first axis with a second electromagnetic field generated by the second transmitter coil parallel to the second axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A wireless power transfer system, comprising:
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a three dimensional charging space in which two or more devices to be powered can be provided; and a wireless power source including; a set of transmitter coils for generating an electromagnetic field in a three-dimensional charging space, wherein the set of transmitter coils includes a first transmitter coil and a second transmitter coil arranged such that a first axis of the first transmitter coil is not parallel to a second axis of the second transmitter coil; and a controller connected to the set of transmitter coils, including the first and second transmitter coils, for controlling the set of transmitter coils to rotate the electromagnetic field in the charging space around a rotational axis wherein the electromagnetic field in the charging space around the rotational axis is generated by superimposing a first electromagnetic field generated by the first transmitter coil parallel to the first axis with a second electromagnetic field generated by the second transmitter coil parallel to the second axis. - View Dependent Claims (16, 17, 18, 19)
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20. A method comprising:
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arranging a first transmitter coil and a second transmitter coil of a set of transmitter coils along at two non-parallel axes in a three-dimensional charging space; connecting a controller to the set of transmitter coils; and controlling, by the controller, the set of transmitter coils, including the first and second transmitter coils, to rotate an electromagnetic field in the charging space around a rotational axis, wherein the electromagnetic field in the charging space around the rotational axis is generated by superimposing a first electromagnetic field generated by the first transmitter coil parallel to an axis of the first transmitter coil with a second electromagnetic field generated by the second transmitter coil parallel to an axis of the second transmitter coil.
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Specification