{
  "$type": "site.standard.document",
  "description": "A system of a power device and a portable device for wireless charging a battery of the portable device are provided. The power device includes a power transmitter stage and a power receiver stage connected with a power antenna. The portable device includes a portable transmitter stage and a…",
  "path": "/patents/1435434",
  "publishedAt": "2026-07-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J50/20",
    "Renesas Design Austria GmbH"
  ],
  "textContent": "A system of a power device and a portable device for wireless charging a battery of the portable device are provided. The power device includes a power transmitter stage and a power receiver stage connected with a power antenna. The portable device includes a portable transmitter stage and a portable receiver stage connected to a portable antenna. The power transmitter stage generates a magnetic field in the RFID frequency range, and modulates it with transmitter data and transmits the modulated magnetic field with the power antenna. The portable receiver stage receives an antenna signal from the receiver antenna exposed to the modulated magnetic field, and demodulates the transmitter data and rectifies the antenna signal to charge the battery in charging cycles.",
  "title": "HIGH EFFICIENCY WIRELESS CHARGING"
}