{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "This application provides an electric drive system, a powertrain, and an electric vehicle, and relates to the field of power electronic technologies. The electric drive system is connected to power batteries and includes: a bus, a three-level inverter circuit, a DC-DC conversion circuit, and a…",
  "path": "/patents/1409398",
  "publishedAt": "2023-11-22T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L15/007",
    "HUAWEI DIGITAL POWER TECH CO LTD [CN]"
  ],
  "textContent": "This application provides an electric drive system, a powertrain, and an electric vehicle, and relates to the field of power electronic technologies. The electric drive system is connected to power batteries and includes: a bus, a three-level inverter circuit, a DC-DC conversion circuit, and a controller. The bus includes a positive bus and a negative bus. The three-level inverter circuit includes a first bus capacitor and a second bus capacitor. The first bus capacitor is connected between the positive bus and a bus neutral point, and the second bus capacitor is connected between the negative bus and the bus neutral point. The DC-DC conversion circuit includes a first conversion circuit and a second conversion circuit, an input terminal of the first conversion circuit is connected in parallel to the first bus capacitor, and an input terminal of the second conversion circuit is connected in parallel to the second bus capacitor. An output terminal of the DC-DC conversion circuit is connected to a low-voltage system and/or a battery of the electric vehicle. The controller is configured to control the first conversion circuit and the second conversion circuit. A volume and costs of the electric drive system are reduced.",
  "title": "ELECTRIC DRIVE SYSTEM, POWER ASSEMBLY, AND ELECTRIC VEHICLE"
}