{
  "$type": "site.standard.document",
  "description": "An apparatus for controlling voltages over series-connected DC power supplies (1.1 - 1. m ), comprising an inverter (2) comprising a positive input, a negative input, and means for controlling a voltage between the inputs. The apparatus also comprises a first series connection of two or more…",
  "path": "/patents/999982",
  "publishedAt": "2012-07-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J7/345",
    "ABB OY [FI]"
  ],
  "textContent": "An apparatus for controlling voltages over series-connected DC power supplies (1.1 - 1. m ), comprising an inverter (2) comprising a positive input, a negative input, and means for controlling a voltage between the inputs. The apparatus also comprises a first series connection of two or more capacitors (3.1 - 3. m ) between the inverter (2) inputs. The apparatus further comprises one or more balancing units (5.1 - 5. m -1) connected between the inverter (2) inputs, comprising means for controlling ratios between first series connection capacitor voltages.",
  "title": "Method and apparatus for controlling voltages over series-connected dc power supplies"
}