{
  "$type": "site.standard.document",
  "description": "The present invention relates to a wireless power transmission device, a wireless power reception device, and a wireless charging system in a wireless power transmission field. The wireless power transmission device according to the present invention comprises: a power conversion unit having a…",
  "path": "/patents/1196421",
  "publishedAt": "2017-12-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J50/12",
    "LG ELECTRONICS INC."
  ],
  "textContent": "The present invention relates to a wireless power transmission device, a wireless power reception device, and a wireless charging system in a wireless power transmission field. The wireless power transmission device according to the present invention comprises: a power conversion unit having a plurality of transmission coils formed to transmit wireless power; a first communication module for sensing a wireless power reception device located in any one of power transmission areas respectively corresponding to the plurality of transmission coils; a second communication module for transmitting/receiving, through the first communication module, a power control message to/from the wireless power reception device, by corresponding to the sensing of the wireless power reception device located in any one power transmission area; and a control unit for transmitting, on the basis of the power control message, wireless power to the wireless power reception device located in any one power transmission area through a transmission coil arranged to correspond to any one power transmission area.",
  "title": "WIRELESS POWER TRANSMISSION DEVICE, WIRELESS POWER RECEPTION DEVICE, AND WIRELESS CHARGING SYSTEM"
}