MULTIPLE-AXIS WIRELESS POWER RECEIVER
First Claim
Patent Images
1. An electronic device comprising:
- a plurality of power receiving elements, each power receiving element configured to electromagnetically couple to an externally generated magnetic field to receive power wirelessly;
a plurality of switches connected to the plurality of power receiving elements; and
an output circuit configured to provide wirelessly received power to the electronic device,the plurality of switches configured to selectively short circuit at least one of the plurality of power receiving elements.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed is an electronic device comprising a plurality of power receiving elements. Each power receiving element may be configured to electromagnetically couple to an externally generated magnetic field to receive power wirelessly. A plurality of switches may be connected to the plurality of power receiving elements. An output circuit may provide wirelessly received power to the electronic device. The plurality of switches may be configured to selectively short circuit at least one of the plurality of power receiving elements.
8 Citations
29 Claims
-
1. An electronic device comprising:
-
a plurality of power receiving elements, each power receiving element configured to electromagnetically couple to an externally generated magnetic field to receive power wirelessly; a plurality of switches connected to the plurality of power receiving elements; and an output circuit configured to provide wirelessly received power to the electronic device, the plurality of switches configured to selectively short circuit at least one of the plurality of power receiving elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A method for receiving power wirelessly in an electronic device comprising:
-
selecting one or more first power receiving elements from a plurality of series-connected power receiving elements disposed in the electronic device; selecting one or more second power receiving elements from the plurality of series-connected power receiving elements; electromagnetically coupling the one or more first power receiving elements to an externally generated magnetic field to receive power wirelessly including inducing a flow of current in the one or more first power receiving elements with the externally generated magnetic field and bypassing the flow of current around the one or more second power receiving elements; and providing wirelessly received power received by the one or more first power receiving elements to the electronic device. - View Dependent Claims (15, 16, 17, 18)
-
-
19. An electronic device comprising:
-
a first power receiving element configured to electromagnetically couple to a first type of externally generated magnetic field having a first orientation to receive power wirelessly; a second power receiving element configured to electromagnetically couple to the first type of externally generated magnetic field to receive power wirelessly; a third power receiving element configured to electromagnetically couple to a second type of externally generated magnetic field having a second orientation to receive power wirelessly, the third power receiving element connected in series with the first and second power receiving elements; and a plurality of switches configured to selectively ground one end of the first power receiving element or the second power receiving element to reduce re-radiation of a magnetic field by the third power receiving element when in the presence of the first type of externally generated magnetic field. - View Dependent Claims (20, 21, 22, 23, 24)
-
-
25. A method for receiving power wirelessly in an electronic device comprising:
-
electromagnetically coupling a first power receiving element and a second power receiving element to an externally generated magnetic field to receive power wirelessly; electromagnetically coupling a third power receiving element to the externally generated magnetic field, the first and second power receiving elements electromagnetically coupling more strongly to the externally generated magnetic field than does the third power receiving element; and preventing a current induced in the first power receiving element from producing a flow of current in the third power receiving element to reduce re-radiation of a magnetic field by the third power receiving element. - View Dependent Claims (26, 27, 28, 29)
-
Specification