Wireless power receiver
First Claim
Patent Images
1. A method for conveying energy from a wireless power receiver to a load, the method comprising:
- during a charging phase for storing energy, actuating a first switching element to couple a first terminal of a receive antenna receiving wireless power to a reference voltage and actuating a second switching element to couple a second terminal of the receive antenna to the reference voltage, the receive antenna located in a coupling-mode region of a transmit antenna and receiving the wireless power from the transmit antenna while operatively coupled with the transmit antenna; and
during an output phase for transferring the energy from the receive antenna to an output coupled to the load, actuating only one of the first switching element or the second switching element to decouple only one of the first terminal or the second terminal from the reference voltage.
1 Assignment
0 Petitions
Accused Products
Abstract
Exemplary embodiments are directed to conveying wireless power received at a receive antenna to a load. A method may include coupling each terminal of the antenna to a ground voltage during a charging phase for storing energy within the antenna. The method may further include coupling at least one terminal of the antenna to an output during an output phase for transferring energy from the antenna to the output.
7 Citations
33 Claims
-
1. A method for conveying energy from a wireless power receiver to a load, the method comprising:
-
during a charging phase for storing energy, actuating a first switching element to couple a first terminal of a receive antenna receiving wireless power to a reference voltage and actuating a second switching element to couple a second terminal of the receive antenna to the reference voltage, the receive antenna located in a coupling-mode region of a transmit antenna and receiving the wireless power from the transmit antenna while operatively coupled with the transmit antenna; and during an output phase for transferring the energy from the receive antenna to an output coupled to the load, actuating only one of the first switching element or the second switching element to decouple only one of the first terminal or the second terminal from the reference voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method for conveying energy from a wireless power receiver to a load, the method comprising:
-
coupling each of a first terminal and a second terminal of a receive antenna to a reference voltage while the receive antenna is wirelessly receiving energy from a transmit antenna for storing; decoupling one of the first terminal or the second terminal of the receive antenna from the reference voltage and coupling the one of the first terminal or the second terminal of the receive antenna to an output while the other of the first terminal or the second terminal of the receive antenna is coupled to the reference voltage during an output phase for transferring stored energy from the receive antenna to the output; and decoupling the other of the first terminal or the second terminal of the receive antenna from the reference voltage and coupling the other of the first terminal or the second terminal of the receive antenna to the output while the one of the first terminal or the second terminal of the receive antenna is coupled to the reference voltage during another output phase for transferring stored energy from the receive antenna to the output. - View Dependent Claims (11, 12, 13, 14, 15, 16)
-
-
17. A receiver for conveying energy from a transmitter to a load, the receiver located in a coupling-mode region of a transmit antenna of the transmitter, the receiver comprising:
-
a receive antenna; and a plurality of switching elements comprising; at least one switching element configured to selectively couple or decouple a first terminal of the receive antenna to or from an output and to or from a reference voltage; and at least one other switching element configured to selectively couple or decouple a second terminal of the receive antenna to or from the output and to or from the reference voltage, the at least one switching element and the at least one other switching element operable independently of one another. - View Dependent Claims (18, 19, 20, 21, 22)
-
-
23. A device for conveying energy from a transmitter to a load, the device located in a coupling-mode region of a transmit antenna of the transmitter, the device comprising:
-
a receive antenna including first and second terminals, wherein each of the first and second terminals of the receive antenna is coupled to a reference voltage during a charging phase for storing energy; a first current sense comparator configured to compare a current through the first terminal of the receive antenna with a threshold current; and a plurality of switching elements, wherein at least one switching element is configured to selectively couple the second terminal of the receive antenna to an output when the current through the first terminal of the receive antenna is greater than the threshold current. - View Dependent Claims (24, 25, 26, 27)
-
-
28. A device for conveying energy from a transmitter to a load, the device located in a coupling-mode region of a transmit antenna of the transmitter, the device comprising:
-
means for receiving wireless power including first and second terminals; means for coupling each of the first and second terminals of the means for receiving wireless power to a reference voltage during a charging phase for storing energy; and means for decoupling the first terminal of the means for receiving wireless power from the reference voltage and coupling the first terminal to an output during an output phase for transferring energy from the means for receiving wireless power to the output while the second terminal of the means for receiving wireless power is coupled to the reference voltage; and means for decoupling the second terminal from the reference voltage and coupling the second terminal to the output during another output phase for transferring energy from the means for receiving wireless power to the output while the first terminal is coupled to the reference voltage. - View Dependent Claims (29, 30)
-
-
31. A device for conveying energy from a transmitter to a load, the device located in a coupling-mode region of a transmit antenna of the transmitter, the device comprising:
-
means for receiving wireless power including first and second terminals; means for coupling each of the first and second terminals of the means for receiving wireless power to a reference voltage while receiving energy therewith for storing energy; first means for coupling one of the first terminal or the second terminal of the means for receiving wireless power to an output during an output phase for transferring energy from the means for receiving wireless power to the output; and second means for coupling the other of the first terminal or the second terminal of the means for receiving wireless power to the output during another output phase for transferring energy from the means for receiving wireless power to the output, the first means and the second means operable independently from one another. - View Dependent Claims (32, 33)
-
Specification