{
  "$type": "site.standard.document",
  "description": "A wireless power transmission apparatus according to the present invention includes a coil which generates a high-frequency magnetic field upon reception of a high-frequency current, a support which supports the power receiving device within the high-frequency magnetic field, an inverter circuit…",
  "path": "/patents/1232944",
  "publishedAt": "2019-05-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J50/12",
    "Mitsubishi Electric Corporation"
  ],
  "textContent": "A wireless power transmission apparatus according to the present invention includes a coil which generates a high-frequency magnetic field upon reception of a high-frequency current, a support which supports the power receiving device within the high-frequency magnetic field, an inverter circuit which supplies the high-frequency current to the coil, and a controller which controls the driving of the inverter circuit. The controller performs a power transmission operation to transmit power to the power receiving device, if the impedance on the output side of the inverter circuit exhibits a resonant characteristic as the driving frequency of the inverter circuit is changed.",
  "title": "WIRELESS POWER TRANSMISSION SYSTEM AND INDUCTION HEATING COOKER"
}