{
  "$type": "site.standard.document",
  "description": "Embodiments of this application disclose an interface circuit, a string, and a system that are applied to power line communication, to lower device specifications, for example, a safety specification and a capacitance value, and reduce design difficulty. The system includes: an inverter, an…",
  "path": "/patents/1391425",
  "publishedAt": "2026-03-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02S40/30",
    "HUAWEI DIGITAL POWER TECH CO LTD [CN]"
  ],
  "textContent": "Embodiments of this application disclose an interface circuit, a string, and a system that are applied to power line communication, to lower device specifications, for example, a safety specification and a capacitance value, and reduce design difficulty. The system includes: an inverter, an optimizer group, a capacitor, a magnetic ring, power lines, and a signal line. An optimizer in the optimizer group is configured to adjust a size of a direct current output by a photovoltaic module connected to the optimizer. Two ends of the signal line passing through the magnetic ring are connected to the inverter. Two ends of a power line passing through the magnetic ring are respectively connected to the capacitor and the optimizer group. An interface circuit including the signal line, the magnetic ring, the power lines, and the capacitor is configured to transmit a power line communication PLC signal. By using the foregoing interface circuit, a high voltage of a direct current output by the optimizer group is prevented from being introduced into the inverter, thereby reducing a specification requirement and design difficulty of a device such as a capacitor.",
  "title": "INTERFACE CIRCUIT, STRING, AND SYSTEM APPLIED TO POWER LINE COMMUNICATION"
}