System and method for power transfer
First Claim
1. A system for power transfer comprising:
- a wireless power transmitter having a plurality of transmitter coils and a controller coupled to the plurality of transmitter coils; and
a plurality of wireless power receivers,wherein the controller is configured to;
determine receiver characteristics of the plurality of wireless power receivers; and
energise one or more of the plurality of transmitter coils based on the determined receiver characteristics to provide wireless power to the plurality of wireless power receivers.
2 Assignments
0 Petitions
Accused Products
Abstract
A system for inductive power transfer that may selectively transmit power in a plurality of modes based on characteristics of a power receiver and determine which transmitter coils to drive based on received signal strength information. The inductive power transfer transmitter may detect characteristics of the power receiver in order to control the mode of the power transfer and selectively control which transmitter coils are driven based on signal strength information received from a power receiver. The power transmitter may have slugs formed of a magnetically permeable material within common coil winding openings and the transmitter coils may consists of a plurality of parallel windings.
-
Citations
22 Claims
-
1. A system for power transfer comprising:
-
a wireless power transmitter having a plurality of transmitter coils and a controller coupled to the plurality of transmitter coils; and a plurality of wireless power receivers, wherein the controller is configured to; determine receiver characteristics of the plurality of wireless power receivers; and energise one or more of the plurality of transmitter coils based on the determined receiver characteristics to provide wireless power to the plurality of wireless power receivers. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A wireless power transmitter comprising:
-
a plurality of transmitter coils; and a controller coupled to the plurality of transmitter coils, wherein the controller is configured to; determine receiver characteristics of a plurality of wireless power receivers placed on a surface of the wireless power transmitter, and energise one or more of the plurality of transmitter coils based on the determined receiver characteristics to provide wireless power to the plurality of wireless power receivers. - View Dependent Claims (7, 8, 9, 10, 15, 16, 17, 18, 19, 20, 21, 22)
-
-
11. A wireless power receiver comprising:
-
one or more receiver coils; and communication circuitry configured to, upon receiving a first wireless power signal using the one or more receiver coils from a wireless power transmitter, transmit a signal to the wireless power transmitter including one or more characteristics of the receiver, wherein the one or more receiver coils are configured to receive a second wireless power signal after the signal is transmitted to the wireless power transmitter, the second wireless power signal based on the transmitted one or more characteristics of the receiver. - View Dependent Claims (12, 13, 14)
-
Specification