{
  "$type": "site.standard.document",
  "description": "Provided is a power transmission system that can determine an optimal frequency for power transmission, and transmit power efficiently. The power transmission system of the present invention includes: an inverter unit 130 that converts a DC voltage into an AC voltage of a predetermined frequency to…",
  "path": "/patents/978841",
  "publishedAt": "2014-02-05T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L3/0046",
    "EQUOS RES CO LTD [JP]"
  ],
  "textContent": "Provided is a power transmission system that can determine an optimal frequency for power transmission, and transmit power efficiently. The power transmission system of the present invention includes: an inverter unit 130 that converts a DC voltage into an AC voltage of a predetermined frequency to output; a power-transmission antenna 140 into which the AC voltage is input from the inverter unit 130; and a power-transmission control unit 150 that controls a frequency of an AC voltage output by the inverter unit 130, with electric energy being transmitted via an electromagnetic field from the power-transmission antenna 140 to a power-reception antenna that faces the power-transmission antenna 140, wherein the power-transmission control unit 150 controls in such a way as to select a frequency at which an antenna unit works as a constant voltage source when seen from a load side, to transmit power.",
  "title": "POWER TRANSMISSION SYSTEM"
}