Patent ID: 11909220
Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A wireless power device, comprising:
a rectifier circuit coupled to a coil;
a transmit driver coupled to the rectifier circuit, the transmit driver configured to provide power to the rectifier circuit during wireless power transmission through the coil;
a transmit detect circuit configured to detect receipt of transmitted wireless power from a second wireless power device at the coil, wherein the transmit detect circuit detects receipt of transmitted wireless power with a frequency counter coupled to detect incoming voltage or current at the coil to provide a signal; and
a controller coupled to the transmit driver and the transmit detect circuit, the controller receiving the signal from the transmit detect circuit and providing an alert of the presence of the transmitted wireless power, the controller activating the transmit driver to transmit wireless power in absence of the signal and a collision alert in the presence of the signal.