{
  "$type": "site.standard.document",
  "description": "A vehicle power supply device includes an in-vehicle battery mounted on a vehicle, a backup power supply as a spare of the in-vehicle battery, a motor that drives an in-vehicle electric device by being supplied with electric power from the in-vehicle battery or the backup power supply, a charger…",
  "path": "/patents/1426281",
  "publishedAt": "2026-06-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L58/18",
    "MINEBEA MITSUMI Inc."
  ],
  "textContent": "A vehicle power supply device includes an in-vehicle battery mounted on a vehicle, a backup power supply as a spare of the in-vehicle battery, a motor that drives an in-vehicle electric device by being supplied with electric power from the in-vehicle battery or the backup power supply, a charger that charges the backup power supply by supplying the electric power from the in-vehicle battery to the backup power supply, an in-vehicle battery voltage acquirer that acquires an output voltage of the in-vehicle battery, and a controller that controls the charger, in which when the output voltage of the in-vehicle battery becomes less than a first voltage, the output voltage being detected by the in-vehicle battery voltage acquirer, the controller charges the backup power supply so as to output a second voltage with which the motor is at least operable.",
  "title": "VEHICLE POWER SUPPLY DEVICE"
}