{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "A wireless power supply system (100) includes a power transmitter (101) and a power receiver (103). The power transmitter includes a power-transmitting coil (113) to which AC power of a frequency is input from a power source (111). The power receiver includes a power-receiving coil (121)…",
  "path": "/patents/931671",
  "publishedAt": "2017-01-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L53/12",
    "IHI CORP [JP]"
  ],
  "textContent": "A wireless power supply system (100) includes a power transmitter (101) and a power receiver (103). The power transmitter includes a power-transmitting coil (113) to which AC power of a frequency is input from a power source (111). The power receiver includes a power-receiving coil (121) magnetically coupled to the power-transmitting coil at a coupling coefficient, and a first power-receiving-side series element (123) coupled in series to the power-receiving coil and having imaginary impedance jZ S2i . In this wireless power supply system, the frequency and the imaginary impedance are determined so that impedance of a power-receiving side seen from the power source is independent of the coupling coefficient when the coupling coefficient changes.",
  "title": "CONTACTLESS POWER SUPPLY SYSTEM AND POWER RECEIVING DEVICE"
}