{
  "$type": "site.standard.document",
  "description": "A backup power supply device () includes a first switch (), a second switch (), a third switch (), a fourth switch (), an auxiliary power supply (), and a control circuit (), wherein the first switch () includes a first diode () provided in a direction in which a current supplied from the main…",
  "path": "/patents/1381206",
  "publishedAt": "2026-04-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J9/061",
    "Panasonic Intellectual Property Management Co., Ltd."
  ],
  "textContent": "A backup power supply device () includes a first switch (), a second switch (), a third switch (), a fourth switch (), an auxiliary power supply (), and a control circuit (), wherein the first switch () includes a first diode () provided in a direction in which a current supplied from the main power supply () flows to the second switch () when the first switch () is off, and when a power supply that supplies a DC voltage to the load () is switched from the main power supply () to the auxiliary power supply (), the control circuit () executes a first step (S) of turning off the first switch, a second step (S) of turning on the third switch () and the fourth switch () after the first step (S); and a third step (S) of turning off the second switch () after the second step (S).",
  "title": "BACKUP POWER SUPPLY DEVICE AND CONTROL METHOD THEREFOR"
}