{
  "$type": "site.standard.document",
  "description": "A wireless power transfer system comprises a power transmitter () wirelessly providing power to a power receiver () via an electromagnetic power transfer signal. The power transmitter () comprises a transmitter coil () generating the power transfer signal and a driver () generating a drive signal…",
  "path": "/patents/1306240",
  "publishedAt": "2021-12-09T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J50/12",
    "KONINKLIJKE PHILIPS N.V."
  ],
  "textContent": "A wireless power transfer system comprises a power transmitter () wirelessly providing power to a power receiver () via an electromagnetic power transfer signal. The power transmitter () comprises a transmitter coil () generating the power transfer signal and a driver () generating a drive signal for the transmitter coil () to generate the power transfer signal. A foreign object detector () executes a foreign object detection operation arranged to detect a presence of a foreign object in response to a property of the drive signal. A communicator () receives a power operating point indication from the power receiver () which represents a load power for a load of the power receiver (). An adapter () adapts the foreign object detection operation in response to the operating point indication being indicative of a change in the load power meeting a criterion.",
  "title": "WIRELESS POWER TRANSFER"
}