SYSTEM AND METHOD FOR IMPROVED CONTROL IN WIRELESS POWER SUPPLY SYSTEMS
First Claim
1. A wireless power supply for transferring power to a remote device, said wireless power supply comprising:
- a wireless power transmitter for transferring power to the remote device according to at least one operating parameter, said wireless power transmitter configured to form an inductive power link between said wireless power supply and the remote device;
an adaptive control system coupled to said wireless power transmitter, said adaptive control system configured to adjust said at least one operating parameter to control power transfer from said wireless power transmitter to the remote device, wherein said adaptive control system is configured to avoid operating at adverse operating parameters that adversely affect communication between said wireless power supply and the remote device or that adversely affect operation of the remote device.
2 Assignments
0 Petitions
Accused Products
Abstract
A wireless power supply with an adaptive control system that is capable of adjusting various operating characteristics and that avoids operating at those operating characteristics that present adverse affects, such as impaired communications or interference with operation of the remote device. In one embodiment, the control system is capable of adjusting two or more of the operating frequency, duty cycle, rail voltage and switching circuit phase. In one embodiment, the wireless power supply control system is configured to detect operating characteristics that present adverse affects, maintain a record of those operating characteristics and avoid those operating characteristics once detected. In another embodiment, the remote device may be configured to advise the wireless power supply control system of certain “keep-out” ranges that adversely affect operation of the remote device.
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Citations
45 Claims
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1. A wireless power supply for transferring power to a remote device, said wireless power supply comprising:
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a wireless power transmitter for transferring power to the remote device according to at least one operating parameter, said wireless power transmitter configured to form an inductive power link between said wireless power supply and the remote device; an adaptive control system coupled to said wireless power transmitter, said adaptive control system configured to adjust said at least one operating parameter to control power transfer from said wireless power transmitter to the remote device, wherein said adaptive control system is configured to avoid operating at adverse operating parameters that adversely affect communication between said wireless power supply and the remote device or that adversely affect operation of the remote device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of operating a wireless power supply to transfer power to a remote device, said method comprising:
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placing a remote device in sufficient proximity to the wireless power supply to form an inductive power link between the wireless power supply and the remote device; operating the wireless power supply according to at least one operating parameter to transfer power to the remote device via the inductive power link; receiving, in the wireless power supply, a communication packet from the remote device; based on the communication packet, controlling the at least one operating parameter to control an amount of power transferred to the remote device, wherein the at least one operating parameter is controlled to avoid adversely affecting communication with the remote device or operation of the remote device. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A wireless power supply system comprising:
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an inductive power supply including; a wireless power transmitter for transferring power according to at least one operating parameter, said wireless power transmitter configured to generate an electromagnetic field for power transfer; and an adaptive control system coupled to said wireless power transmitter, said adaptive control system configured to adjust said at least one operating parameter to control power transfer via said electromagnetic field; a remote device separable from said inductive power supply, said remote device for receiving inductive power via said electromagnetic field, said remote device including; a secondary for generating electrical power in response to said electromagnetic field generated by said inductive power supply; communication circuitry for communicating with said inductive power supply; and a load coupled to said secondary, said load for receiving electrical power generated in said secondary in response to said electromagnetic field; wherein said adaptive control system is configured to adjust said at least one operating parameter to avoid adversely affecting communication with said inductive power supply or adversely affecting operation of said remote device. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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Specification