{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "Provided are a power supply circuit, a power supply device and a control method. The power supply circuit includes a primary rectifier unit, a modulation unit, a transformer, a secondary rectifier and filtering unit, a current feedback unit and a current sampling control unit. The power supply…",
  "path": "/patents/1241490",
  "publishedAt": "2019-08-15T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02M3/24",
    "GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD."
  ],
  "textContent": "Provided are a power supply circuit, a power supply device and a control method. The power supply circuit includes a primary rectifier unit, a modulation unit, a transformer, a secondary rectifier and filtering unit, a current feedback unit and a current sampling control unit. The power supply circuit removes a liquid electrolytic capacitor at a primary side, and an output current of the power supply circuit has a periodically changing current value. The power supply circuit may determine when the output current is at a peak value based on a feedback voltage outputted by the current feedback unit, such that the power supply circuit may manage and control a size of the peak value of the output current.",
  "title": "POWER SUPPLY CIRCUIT, POWER SUPPLY DEVICE AND CONTROL METHOD"
}