{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "A drive circuit for a roof assembly, the roof assembly comprising a roof panel movable between a closed position and an opened position by a motor, the drive circuit comprising an H-bridge comprising switch elements for controlling the speed of the motor; a reverse polarity protection switch, such…",
  "path": "/patents/1423738",
  "publishedAt": "2026-06-18T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02P27/08",
    "INALFA ROOF SYSTEMS GROUP B.V."
  ],
  "textContent": "A drive circuit for a roof assembly, the roof assembly comprising a roof panel movable between a closed position and an opened position by a motor, the drive circuit comprising an H-bridge comprising switch elements for controlling the speed of the motor; a reverse polarity protection switch, such as a MOSFET; and at least one measurement circuit. The drive circuit is configured for receiving a PWM-signal with a duty cycle for operating the H-bridge. The at least one measurement circuit is configured for performing a current measurement of at least one of the switch elements of the H-bridge and/or the reverse polarity protection switch, respectively.",
  "title": "DRIVE CIRCUIT FOR AN ELECTRIC MOTOR FOR USE IN A ROOF ASSEMBLY"
}