{
  "$type": "site.standard.document",
  "description": "Disclosed are a power supply circuit and method for mobile communication terminals, such as PDAs and portable phones. When a main power source such as a battery is abruptly detached from a system, the abrupt detachment of the main power source is detected and the system is stably turned off only…",
  "path": "/patents/1068367",
  "publishedAt": "2006-04-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G06F1/30",
    "SAMSUNG ELECTRONICS CO LTD [KR]"
  ],
  "textContent": "Disclosed are a power supply circuit and method for mobile communication terminals, such as PDAs and portable phones. When a main power source such as a battery is abruptly detached from a system, the abrupt detachment of the main power source is detected and the system is stably turned off only with a backup power source. The power supply circuit includes a first switch for providing a driving voltage from the main power source to the system, a second switch for providing a driving voltage from the backup power source to the system when the main power source is detached from the system, a controller for generating a control signal for opening the first switch and closing the second switch when the main power source is detached from the system, and a memory for storing user data.",
  "title": "Power supply circuit and method for stable system turn-off"
}