Patent ID: 11949244
Assignee: SIGMASENSE, LLC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 18:
19. A device that is operative to transfer power wirelessly, the device comprising:
a drive-sense circuit (DSC) operably coupled to generate a drive signal based on a reference signal, wherein, when enabled, the DSC operably coupled and configured to:
provide the drive signal to a first coil via a single line and via a resonating capacitor and simultaneously to sense the drive signal including to sense one or more electrical characteristics of the drive signal via the single line, wherein the drive signal being provided to the first coil is operative to transfer power wirelessly from the first coil to a second coil of another device; and
generate a digital signal that is representative of the one or more electrical characteristics of the drive signal based on an error signal corresponding to a difference between the drive signal and the reference signal, wherein the reference signal includes a frequency that is based on a resonant frequency associated with an inductance of the first coil and a capacitance of the resonating capacitor;

memory that stores operational instructions;
one or more processing modules operably coupled to the DSC and the memory; and
a temperature sensor operably coupled to the one or more processing modules and implemented within another proximity to the first coil that facilitates detection of temperature of the another device, wherein, when enabled, the one or more processing modules further configured to execute the operational instructions to:
receive a temperature measurement of the another device from the temperature sensor;
determine whether the temperature measurement of the another device is within an acceptable range or change of temperature to facilitate wireless power transfer from the first coil to the second coil of the another device;
based on determination that the temperature measurement of the another device is outside of the acceptable range or change of temperature to facilitate wireless power transfer from the first coil to the second coil of the another device, adjust an amplitude of the reference signal to zero to stop the DSC from providing the drive signal to the first coil via the single line and via the resonating capacitor, wherein the one or more electrical characteristics of the drive signal includes at least one of:

an impedance of the another device associated with the second coil of the another device;
a change of impedance of the another device associated with the second coil of the another device;
a range of change of the impedance of the another device associated with the second coil of the another device;
an impedance profile of the another device associated with the second coil of the another device;
a current flowing through the first coil;
a change of current flowing through the first coil; or
a current profile of the current flowing through the first coil.