Systems, apparatus, and method for a dual mode wireless power receiver
First Claim
1. An apparatus for receiving wireless power, the apparatus comprising:
- a first coil configured to wirelessly receive power from a first transmitter configured to generate a first alternating magnetic field having a first frequency;
a second coil configured to wirelessly receive power from a second transmitter configured to generate a second alternating magnetic field having a second frequency higher than the first frequency, the second coil positioned to enclose the first coil;
a receive circuit electrically connected to the first coil;
a filter circuit electrically connected to the receive circuit and configured to reduce energy received by the first coil at the second frequency; and
a detection circuit electrically connected to the first coil and configured to;
detect power being received at the second frequency, and upon detection of power received at the second frequency, reduce an amount of power received by the first coil via the second alternating magnetic field at the second frequency by altering a characteristic of circuitry including the first coil.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems, methods and apparatus are disclosed for a dual mode wireless power receiver. In accordance with on aspect, an apparatus for receiving wireless power is provided. The apparatus includes a first coil configured to wirelessly receive power from a first transmitter configured to generate a first alternating magnetic field having a first frequency. The apparatus further includes a second coil configured to wirelessly receive power from a second transmitter configured to generate a second alternating magnetic field having a second frequency higher than the first frequency. The second coil is positioned to enclose the first coil. A first coupling factor between the first coil and a coil of the first transmitter is higher than a second coupling factor between the second coil and a coil of the second transmitter when the first and second coils are positioned within respective charging regions of the first and second transmitters.
-
Citations
30 Claims
-
1. An apparatus for receiving wireless power, the apparatus comprising:
-
a first coil configured to wirelessly receive power from a first transmitter configured to generate a first alternating magnetic field having a first frequency; a second coil configured to wirelessly receive power from a second transmitter configured to generate a second alternating magnetic field having a second frequency higher than the first frequency, the second coil positioned to enclose the first coil; a receive circuit electrically connected to the first coil; a filter circuit electrically connected to the receive circuit and configured to reduce energy received by the first coil at the second frequency; and a detection circuit electrically connected to the first coil and configured to; detect power being received at the second frequency, and upon detection of power received at the second frequency, reduce an amount of power received by the first coil via the second alternating magnetic field at the second frequency by altering a characteristic of circuitry including the first coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A method of receiving wireless power, the method comprising:
-
wirelessly receiving power via a first coil from a first transmitter configured to generate a first alternating magnetic field having a first frequency; wirelessly receiving power via a second coil from a second transmitter configured to generate a second alternating magnetic field having a second frequency higher than the first frequency, the second coil positioned to enclose the first coil; reducing energy received by the first coil at the second frequency utilizing a filter circuit electrically connected to a receive circuit that is electrically connected to the first coil; detecting power being received at the second frequency, and reducing an amount of power received by the first coil via the second alternating magnetic field at the second frequency by altering a characteristic of circuitry including the first coil in response to detecting the power received at the second frequency. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
-
21. A non-transitory computer-readable medium comprising code that, when executed, causes an apparatus to:
-
wirelessly receive power via a first coil from a first transmitter configured to generate a first alternating magnetic field having a first frequency; wirelessly receive power via a second coil from a second transmitter configured to generate a second alternating magnetic field having a second frequency higher than the first frequency, the second coil positioned to enclose the first coil; reduce energy received by the first coil at the second frequency utilizing a filter circuit electrically connected to a receive circuit that is electrically connected to the first coil; detect power being received at the second frequency, and reduce an amount of power received by the first coil via the second alternating magnetic field at the second frequency by altering a characteristic of circuitry including the first coil in response to detecting the power received at the second frequency. - View Dependent Claims (22, 23, 24)
-
-
25. An apparatus for receiving wireless power, the apparatus comprising:
-
first means for wirelessly receiving power from a first transmitter configured to generate a first alternating magnetic field having a first frequency; and second means for wirelessly receiving power from a second transmitter configured to generate a second alternating magnetic field having a second frequency higher than the first frequency, the second means for wirelessly receiving power positioned to enclose the first means for wirelessly receiving power; means for blocking energy at the second frequency received by the first means for wirelessly receiving power; means for detecting power being received at the second frequency; and means for reducing an amount of power received via the second alternating magnetic field at the second frequency by the first means for wirelessly receiving power by altering a characteristic of circuitry including the first means for wirelessly receiving power in response to detecting the power received at the second frequency. - View Dependent Claims (26, 27)
-
-
28. An apparatus for receiving wireless power, the apparatus comprising:
-
a first coil configured to wirelessly receive power from a first transmitter configured to generate a first alternating magnetic field having a first frequency; a second coil configured to wirelessly receive power from a second transmitter configured to generate a second alternating magnetic field having a second frequency higher than the first frequency, the second coil positioned to enclose the first coil; a receive circuit electrically connected to the first coil; a filter circuit electrically connected to the receive circuit and configured to reduce energy received by the first coil at the second frequency; and a detection circuit electrically connected to the second coil and configured to; detect power being received at the first frequency, and upon detection of power received at the first frequency, reduce an amount of power received by the second coil via the second alternating magnetic field at the first frequency by altering a characteristic of circuitry including the second coil. - View Dependent Claims (29, 30)
-
Specification