{
  "$type": "site.standard.document",
  "description": "A foreign object detector includes multiple detection coils located between a transmitter coil in a transmitter device and a receiver coil in a receiver device to be electromagnetically coupled to one another, multiple capacitors each forming a resonant circuit together with a corresponding…",
  "path": "/patents/1339530",
  "publishedAt": "2023-03-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J50/60",
    "OMRON Corporation"
  ],
  "textContent": "A foreign object detector includes multiple detection coils located between a transmitter coil in a transmitter device and a receiver coil in a receiver device to be electromagnetically coupled to one another, multiple capacitors each forming a resonant circuit together with a corresponding detection coil of the detection coils, a power supply circuit that supplies alternating current power having a predetermined frequency to each of the detection coils through a feeder coil located to be electromagnetically coupled to each of the detection coils, and a detection circuit that detects a voltage output from each of the detection coils and detects a foreign object between the transmitter coil and the receiver coil based on the detected voltage. The transmitter device transmits power to the receiver device contactlessly.",
  "title": "FOREIGN OBJECT DETECTOR"
}