{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
      "$link": "bafkreigcnbwy4gxrgnluh6d3auo42lgwcmg4ppchgkxakuqfjx7lkx6b5m"
    },
    "mimeType": "image/png",
    "size": 83832
  },
  "description": "A motor driving device is provided. The motor driving device includes a driving unit configured to drive a starter motor/generator that is directly connected to an engine by a rotation shaft, by performing on/off control of switching elements in a bridge circuit for driving a motor; and a driving…",
  "path": "/patents/1269568",
  "publishedAt": "2020-08-13T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02N11/04",
    "FUTABA CORPORATION"
  ],
  "textContent": "A motor driving device is provided. The motor driving device includes a driving unit configured to drive a starter motor/generator that is directly connected to an engine by a rotation shaft, by performing on/off control of switching elements in a bridge circuit for driving a motor; and a driving controller configured to control a driving operation for the starter motor/generator that is performed by the driving unit. The driving unit controls a motor driving voltage for the starter motor/generator by changing ON periods of the switching elements of the bridge circuit, and turns on predetermined switching elements of the bridge circuit at a predetermined timing to perform an active freewheel operation for boosting a regenerative voltage generated by the starter motor/generator. The driving controller instructs the driving unit to control the motor driving voltage and on/off of the active freewheel operation, based on a battery voltage.",
  "title": "MOTOR DRIVING DEVICE"
}