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wireless power transfer systems and methods of: detecting if a receive coil is near a transmit coil, finding an operating frequency for a drive coil drive signal, and identifying a waveform of a signal drive a drive coil
wireless power transfer systems and methods of: detecting if a receive coil is near a transmit coil, finding an operating frequency for a drive coil drive signal, and identifying a waveform of a signal drive a drive coil
A method of detecting whether a receiver coil is near a transmit coil in a wireless power transfer system (WPTS), the method involving: applying a pseudo-random signal to the transmit coil; while the pseudo-random signal is being applied to the transmit coil, recording one or more signals produced within the WPTS in response to the applied pseudo-random signal; by using the one or more recorded signals, generating a dynamic system model for some aspect of the WPTS; and using the generated dynamic system model in combination with stored training data to determine whether an object having characteristics distinguishing the object as a receiver coil is near the transmit coil.
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