ELECTROMAGNETIC ENERGY TRANSFER USING TUNABLE INDUCTORS
First Claim
1. A receiving coil apparatus for use in an electromagnetic energy transfer system, the receiving coil apparatus comprising:
- a plurality of conductive loops;
a switching circuit connected with the plurality of conductive loops, the switching circuit being configured to control an electrical center of the receiving coil apparatus as a function of at least one control signal; and
a controller coupled with the switching circuit, the controller being configured to generate the at least one control signal for controlling an alignment of the electrical center of the receiving coil apparatus with an electromagnetic field so as to enhance an amount of energy transferred to the receiving coil apparatus from the electromagnetic field.
2 Assignments
0 Petitions
Accused Products
Abstract
A receiving coil apparatus for use in an electromagnetic energy transfer system includes multiple conductive loops and a switching circuit connected with the conductive loops. The switching circuit is configured to control an electrical center of the receiving coil apparatus as a function of at least one control signal. A controller connected with the switching circuit is configured to generate the control signal for controlling an alignment of the electrical center of the receiving coil apparatus with an electromagnetic field so as to enhance an amount of energy transferred to the receiving coil apparatus from the electromagnetic field.
5 Citations
23 Claims
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1. A receiving coil apparatus for use in an electromagnetic energy transfer system, the receiving coil apparatus comprising:
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a plurality of conductive loops; a switching circuit connected with the plurality of conductive loops, the switching circuit being configured to control an electrical center of the receiving coil apparatus as a function of at least one control signal; and a controller coupled with the switching circuit, the controller being configured to generate the at least one control signal for controlling an alignment of the electrical center of the receiving coil apparatus with an electromagnetic field so as to enhance an amount of energy transferred to the receiving coil apparatus from the electromagnetic field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An inductive charging system, comprising:
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a primary device, the primary device including a first controller coupled with an alternating current power source and a transmitting coil coupled with the first controller, the transmitting coil generating an electromagnetic field which is controlled by the first controller; and a secondary device, the secondary device including; a receiving coil apparatus comprising; a plurality of conductive loops; a switching circuit connected with the plurality of conductive loops, the switching circuit being configured to control an electrical center of the receiving coil apparatus as a function of at least one control signal; and a second controller coupled with the switching circuit, the second controller being configured to generate the at least one control signal for controlling an alignment of the electrical center of the receiving coil apparatus with the electromagnetic field so as to enhance an amount of energy transferred to the receiving coil apparatus from the electromagnetic field; and a rectifier circuit connected with the receiving coil apparatus, the rectifier circuit being configured to receive an alternating current signal from the receiving coil apparatus and to convert the alternating current signal to a rectified output voltage. - View Dependent Claims (18, 19, 20)
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21. A method for enhancing energy transfer performance in an electromagnetic energy transfer system, the method comprising:
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providing a receiving coil configured having an electrical center that is controllable as a function of at least one control signal; determining an amount of energy induced in the receiving coil for each of a plurality of configurations of the electrical center of the receiving coil; and generating the at least one control signal for controlling an alignment of the electrical center of the receiving coil relative to an electromagnetic field so as to enhance an amount of energy transferred to the receiving coil from the electromagnetic field. - View Dependent Claims (22, 23)
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Specification