{
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  "description": "A single-phase and three-phase compatible conversion circuit includes an EMC module, a PFC module, a switch K and a control module. The EMC module is connected between lines A, B, C and N of a power grid and the PFC module. Three lines A, B and C are led out from the EMC module and are connected…",
  "path": "/patents/1300225",
  "publishedAt": "2021-09-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02M1/4233",
    "Shenzhen Vmax New Energy Co.,Ltd."
  ],
  "textContent": "A single-phase and three-phase compatible conversion circuit includes an EMC module, a PFC module, a switch K and a control module. The EMC module is connected between lines A, B, C and N of a power grid and the PFC module. Three lines A, B and C are led out from the EMC module and are connected with the PFC module, and are respectively connected to a set virtual midpoint through capacitors CX, CX, and CX. The virtual midpoint is connected to a bus midpoint of the PFC module through the switch K. The control module is used for detecting a power grid input signal and controlling the state of the switch K according to the type of the power grid input signal. The common-mode noise of the three-phase conversion mode can be reduced, and the three-phase conversion mode can be controlled within a larger bus voltage regulation range.",
  "title": "SINGLE-PHASE AND THREE-PHASE COMPATIBLE CONVERSION CIRCUIT AND VEHICLE-MOUNTED CHARGER"
}