Systems and methods for extending the power capability of a wireless charger
First Claim
1. A wireless power receiver apparatus for charging a chargeable device, comprising:
- a receive antenna configured to wirelessly receive power at a level sufficient for charging the chargeable device; and
converter circuitry coupled to the receive antenna, the converter circuitry configured to;
receive an input voltage, at an input of the converter circuitry, derived from the wirelessly received power;
operate in a first mode to produce a first output voltage, at an output of the converter circuitry, that is substantially equal to the input voltage based on a first relationship between the input voltage and a first voltage level threshold; and
operate in a second mode to produce a second output voltage, at the output of the converter circuitry, that is scaled to a value relative to the input voltage based on a second relationship between the input voltage and the first voltage level threshold.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems and methods for converting voltages between different voltage levels in a receiver are disclosed. In an aspect, a wireless power receiver apparatus for charging a chargeable device is provided. The wireless power receiver apparatus for charging a chargeable device can include a receive antenna configured to wirelessly receive power at a level sufficient for charging the chargeable device. The wireless power receiver apparatus can also include converter circuitry. The converter circuitry can be coupled to the receive antenna. The converter circuitry can be configured to receive an input voltage derived from the wirelessly received power. The converter circuitry can also be configured to produce an output voltage that is scaled to a value relative to the input voltage based on a relationship between the input voltage and a first voltage level threshold.
36 Citations
30 Claims
-
1. A wireless power receiver apparatus for charging a chargeable device, comprising:
-
a receive antenna configured to wirelessly receive power at a level sufficient for charging the chargeable device; and converter circuitry coupled to the receive antenna, the converter circuitry configured to; receive an input voltage, at an input of the converter circuitry, derived from the wirelessly received power; operate in a first mode to produce a first output voltage, at an output of the converter circuitry, that is substantially equal to the input voltage based on a first relationship between the input voltage and a first voltage level threshold; and operate in a second mode to produce a second output voltage, at the output of the converter circuitry, that is scaled to a value relative to the input voltage based on a second relationship between the input voltage and the first voltage level threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A wireless power receiver apparatus for charging a chargeable device, comprising:
-
means for wirelessly receiving power at a level sufficient for charging the chargeable device; means for receiving an input voltage derived from the wirelessly received power coupled to the means for wirelessly receiving power; means for producing a first output voltage from the means for receiving an input voltage that is substantially equal to the input voltage based on a first relationship between the input voltage and a first voltage level threshold; and means for producing a second output voltage from the means for receiving an input voltage that is scaled to a value relative to the input voltage based on a second relationship between the input voltage and the first voltage level threshold. - View Dependent Claims (17, 18)
-
-
19. A method for charging a chargeable device, comprising:
-
wirelessly receiving power at a level sufficient for charging the chargeable device at a receive antenna; receiving an input voltage derived from the wirelessly received power at converter circuitry coupled to the receive antenna; producing a first output voltage from the converter circuitry that is substantially equal to the input voltage based on a first relationship between the input voltage and a first voltage level threshold; and producing a second output voltage from the converter circuitry that is scaled to a value relative to the input voltage based on a second relationship between the input voltage and the first voltage level threshold. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
-
Specification