{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
      "$link": "bafkreidgjogbeffgoueh4mu627w56wkkf3nmt5liynbyvua6xj2gd2sw7e"
    },
    "mimeType": "image/png",
    "size": 105675
  },
  "description": "This application provides a wireless charging receiving apparatus, a method, a terminal, and a system. The receiving apparatus includes a receiver coil, a rectifier, and a controller. The receiver coil is configured to receive electromagnetic energy transmitted by a transmitter coil and output an…",
  "path": "/patents/1419048",
  "publishedAt": "2024-04-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L53/12",
    "HUAWEI TECH CO LTD [CN]"
  ],
  "textContent": "This application provides a wireless charging receiving apparatus, a method, a terminal, and a system. The receiving apparatus includes a receiver coil, a rectifier, and a controller. The receiver coil is configured to receive electromagnetic energy transmitted by a transmitter coil and output an alternating current. The rectifier includes at least two controllable switches, and is configured to rectify the alternating current from the receiver coil to a direct current by using the at least two controllable switches. The controller is configured to perform phase-locking on a phase of a current fundamental component of the alternating current received by the rectifier, to obtain a periodic signal having a same frequency as the current fundamental component; and the controller is further configured to: generate a synchronization reference signal having the same frequency as the periodic signal, generate drive signals of the controllable switches in the rectifier based on the synchronization reference signal, and control, based on the drive signals, the controllable switches in the rectifier to convert the alternating current into the direct current, where the drive signals and the current fundamental component have the same frequency. After the phase-locking, a period of the synchronization reference signal does not change due to a sudden change of load, and frequencies of the drive signals do not jump, so that the entire wireless charging system works in a steady state.",
  "title": "WIRELESS CHARGING RECEIVING APPARATUS, METHOD, TERMINAL, AND SYSTEM"
}