ACTIVE RECTIFIER FOR EFFICIENT WIRELESS POWER TRANSFER
First Claim
Patent Images
1. A device for receiving a wireless power transfer, the device comprising:
- an active rectifier;
rectifier input nodes;
a load circuit connected to the active rectifier, the load circuit comprising a voltage regulator; and
a controller operatively coupled to the active rectifier and the voltage regulator, the controller configured to control the active rectifier and the voltage regulator to modify an impedance at the rectifier input nodes.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods, devices, and integrated circuits are disclosed for efficiently receiving a wireless power transfer. In one example, a device configured for receiving a wireless power transfer includes an active rectifier, rectifier input nodes, and a controller. The controller is operatively coupled to the active rectifier and configured to control the active rectifier to modify the impedance at the rectifier input nodes.
-
Citations
24 Claims
-
1. A device for receiving a wireless power transfer, the device comprising:
-
an active rectifier; rectifier input nodes; a load circuit connected to the active rectifier, the load circuit comprising a voltage regulator; and a controller operatively coupled to the active rectifier and the voltage regulator, the controller configured to control the active rectifier and the voltage regulator to modify an impedance at the rectifier input nodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A method for receiving a wireless power transfer, the method comprising:
-
determining, by one or more processors, based on one or both of circuit parameters or circuit measurements, a modification of an impedance at input nodes of an active rectifier, comprising a modification of one or more of a phase angle, an output voltage, or a duty cycle, to result in one or both of a higher value of an efficiency of the wireless power transfer or a higher value of extracted power of the wireless power transfer; and applying, by the one or more processors, a control signal to at least one of the active rectifier or a voltage regulator connected to an output of the active rectifier, wherein the control signal is based on the determined modification of the impedance. - View Dependent Claims (20, 21)
-
-
22. An integrated circuit for controlling a wireless power transfer, the integrated circuit being configured to:
-
determine, based on one or both of circuit parameters or circuit measurements, a modification of an impedance at input nodes of an active rectifier, comprising a modification of one or more of a phase angle, an output voltage, or a duty cycle, to result in one or both of a higher value of an efficiency of the wireless power transfer or a higher value of extracted power of the wireless power transfer; and apply a control signal to at least one of the active rectifier or a voltage regulator connected to an output of the active rectifier, wherein the control signal is based on the determined modification of the impedance. - View Dependent Claims (23, 24)
-
Specification