{
  "$type": "site.standard.document",
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  "description": "According to an embodiment, a vehicle power conversion device (11) includes a two-level converter (40), a three-level converter (50) and one cooling device (720). The two-level converter (40) comprises a capacitor (14), first switching devices (4a; 4b) and second switching devices (4c; 4d). The…",
  "path": "/patents/927911",
  "publishedAt": "2017-04-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L53/20",
    "TOSHIBA KK [JP]"
  ],
  "textContent": "According to an embodiment, a vehicle power conversion device (11) includes a two-level converter (40), a three-level converter (50) and one cooling device (720). The two-level converter (40) comprises a capacitor (14), first switching devices (4a; 4b) and second switching devices (4c; 4d). The three-level converter (50) comprises two capacitors (15a; 15b), third switching devices (5a; 5b), fourth switching devices (5c; 5d) and a bidirectional switch (7). The first power modules (704a-704d) are modules in which the respective first and second switching devices (4a; 4b; 4c; 4d) are embedded. The second power modules (705a-705f) are modules in which the respective third and fourth switching devices (5a; 5b; 5c; 5d) are embedded. The second power modules (705a-705f) have dielectric strength voltages equal to or higher than a voltage applicable to any one of the two capacitors (15a; 15b) connected in series to each other included in the three-level converter (50), and the first power modules (704a-704d) have dielectric strength voltages equal to or higher than a sum of a voltage applicable to any one of the two capacitors (15a; 15b) connected in series to each other included in the three-level converter (50) and a voltage applicable to the capacitor (14) included in the two-level converter (40) .",
  "title": "VEHICLE POWER CONVERSION DEVICE"
}