TEMPERATURE COMPENSATION IN A WIRELESS TRANSFER SYSTEM
Described herein are improved configurations for a resonator for wireless power transfer that includes a conductor forming one or more loops and having an inductance L, a network of capacitors, having a capacitance, C, and a desired electrical parameter, coupled to the conductor, the network having at least one capacitor of a first type with a first temperature profile of the electrical parameter, and the network having at least one capacitor of a second type with a second temperature profile of the electrical parameter.
1 - 26 . (canceled)
27 . A tunable source for wireless power transfer comprising:
a high-Q magnetic resonator;
a temperature sensor;
a driving circuit; and
a processor to control at least one adjustable parameter of a driving signal;
wherein the processor adjusts the at least one adjustable parameter of the driving signal in response to temperature data received from the temperature sensor.
28 . The tunable source of claim 27 , further comprising an amplifier of any of class A, B, C, D, DE, E, or F.
29 . The tunable source of claim 27 , wherein the at least one adjustable parameter is the frequency of the driving signal.
30 . The tunable source of claim 27 , wherein the at least one adjustable parameter is the phase of the driving signal.
31 . The tunable source of claim 27 , wherein the at least one adjustable parameter is the amplitude of the driving signal.
32 . The tunable source of claim 27 , wherein the at least one adjustable parameter is the duty cycle of the driving signal.
33 . The tunable source of claim 27 , wherein the processor operates as part of a feedback loop.
34 . The tunable source of claim 27 , wherein the processor further comprises wireless communications capabilities.
35 . The tunable source of claim 34 , wherein temperature data from the temperature sensor is processed and communicated to a component of a wireless power transfer system.
36 . The tunable source of claim 27 , wherein the processor detunes the magnetic resonator when a threshold temperature is reached.
37 . The tunable source of claim 27 , wherein the processor uses wireless communication to signal that a threshold temperature has been reached.
38 . A tunable device for wireless power transfer comprising:
a high-Q magnetic resonator;
a temperature sensor;
a driving circuit; and
a processor to control at least one adjustable parameter of a driving signal;
wherein the processor adjusts the at least one adjustable parameter of the driving signal in response to temperature data received from the temperature sensor.
39 . The tunable device of claim 38 , further comprising a rectifier of any of class A, B, C, D, DE, E, or F.
40 . The tunable device of claim 38 , wherein the at least one adjustable parameter is the frequency of the driving signal.
41 . The tunable device of claim 38 , wherein the at least one adjustable parameter is the phase of the driving signal.
42 . The tunable device of claim 38 , wherein the at least one adjustable parameter is the amplitude of the driving signal.
43 . The tunable device of claim 38 , wherein the at least one adjustable parameter is the duty cycle of the driving signal.
44 . The tunable device of claim 38 , wherein the processor operates as part of a feedback loop.
45 . The tunable device of claim 38 , wherein the processor further comprises wireless communications capabilities.
46 . The tunable device of claim 45 , wherein temperature data from the temperature sensor is processed and communicated to a component of a wireless power transfer system.
47 . The tunable device of claim 38 , wherein the processor detunes the magnetic resonator when a threshold temperature is reached.
48 . The tunable device of claim 38 , wherein the processor uses wireless communication to signal that a threshold temperature has been reached.