{
  "$type": "site.standard.document",
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  "description": "Provided is a power receiver and a power transmitting system that can improve a supply balance of electric power. a power receiver includes a first secondary-side resonant coil, including a resonant coil part, a first terminal and a second terminal, that receives electric power from a primary-side…",
  "path": "/patents/921643",
  "publishedAt": "2017-09-06T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J50/12",
    "FUJITSU LTD [JP]"
  ],
  "textContent": "Provided is a power receiver and a power transmitting system that can improve a supply balance of electric power. a power receiver includes a first secondary-side resonant coil, including a resonant coil part, a first terminal and a second terminal, that receives electric power from a primary-side resonant coil through magnetic field resonance generated between the primary-side resonant coil and the first secondary-side resonant coil, the first terminal and the second terminal being respectively provided on both ends of the resonant coil part; a capacitor inserted in series with the resonant coil part of the first secondary-side resonant coil; a rectifier circuit, coupled to the first terminal and the second terminal, that rectifies alternating-current power input from the first secondary-side resonant coil; a smoothing circuit coupled to an output side of the rectifier circuit; a pair of output terminals coupled to an output side of the smoothing circuit; a switch coupled in parallel to the capacitor or coupled in series between the rectifier circuit and one of the first terminal and the second terminal of the first secondary-side resonant coil; and a drive controller that drives the switch through a first PWM drive pattern determined by a first duty cycle and by a first frequency that is less than or equal to a frequency of the magnetic field resonance, the first duty cycle being set based on a first efficiency of electric power reception of the first secondary-side resonant coil, a first rated output of a first load coupled to the pair of output terminals, a second efficiency of electric power reception of a second secondary-side resonant coil of another power receiver that receives electric power from the primary-side resonant coil through magnetic field resonance generated between the primary-side resonant coil and the second secondary-side resonant coil, and a second rated output of a second load to which the electric power is supplied from the other power receiver.",
  "title": "POWER RECEIVER AND POWER TRANSMISSION SYSTEM"
}