{
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  "coverImage": {
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  "description": "A power transmitter includes: a first coil that wirelessly transmits the electric power to a second coil of a power receiver; a converter including a DC/AC converter that converts DC electric power into AC electric power and supplies the AC electric power to the first coil; and a controller that…",
  "path": "/patents/1360437",
  "publishedAt": "2024-03-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J50/12",
    "IHI Corporation"
  ],
  "textContent": "A power transmitter includes: a first coil that wirelessly transmits the electric power to a second coil of a power receiver; a converter including a DC/AC converter that converts DC electric power into AC electric power and supplies the AC electric power to the first coil; and a controller that brings a power value of the DC electric power or the AC electric power close to a power command value by frequency control of changing a frequency of the AC electric power. The controller performs, when the frequency at which the power value reaches the power command value is included in a used frequency band used by another device, frequency change process of changing the frequency so that the frequency becomes a frequency different from the used frequency band while performing constant power control of maintaining a state in which the power value matches the power command value.",
  "title": "POWER TRANSMITTER"
}