{
  "$type": "site.standard.document",
  "description": "There is provided a rear sign lamp capable of enhancing safety. An LED string () includes four LEDs (_ to _) connected in series. An LED driver circuit () receives a battery voltage (V) and supplies a drive current (I) stabilized at a target current (I) to the LED string (). A bypass circuit () is…",
  "path": "/patents/1341445",
  "publishedAt": "2023-04-13T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H05B45/54",
    "KOITO MANUFACTURING CO., LTD."
  ],
  "textContent": "There is provided a rear sign lamp capable of enhancing safety. An LED string () includes four LEDs (_ to _) connected in series. An LED driver circuit () receives a battery voltage (V) and supplies a drive current (I) stabilized at a target current (I) to the LED string (). A bypass circuit () is provided in parallel with a bypassed portion () including two adjacent LEDs (_ and _) of the LED string (), and sinks a bypass current (I) according to a battery voltage (V).",
  "title": "LIGHT SOURCE MODULE AND LIGHTING CIRCUIT"
}