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

Claim 16:
17. 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;
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; and
a signal generator operably coupled and configured to generate the reference signal that includes the frequency that is based on the resonant frequency associated with the inductance of the first coil and the capacitance of 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.