Patent ID: 11949229
Assignee: RENESAS ELECTRONICS AMERICA INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. The wireless power transmitter of claim 1, wherein the transmit circuit comprises a memory, and is configured to engage in a calibration process with a wireless power receiver, the calibration process being performed when the wireless power receiver does not transfer power to a load, the calibration process comprising the transmitter transmitting wireless power to the receiver at a plurality of settings each of which defines the WPT output signal voltage amplitude, the frequency, and one or more transitions of the WPT output signal voltage amplitude and/or frequency, and the transmitter receiving, from the receiver, information on how each said setting affects a receiver voltage obtained in the receiver, and storing the settings and the corresponding information in the memory;
wherein during the WPT, when the receiver transfers power to the load, the transmitter receives the receiver's commands specifying desired values for the receiver voltage, and the transmitter executes the commands based on the information stored in the memory for the settings.