{
  "$type": "site.standard.document",
  "description": "A failure warning device for an LED comprises a first resistor (R1) connected in series with the LED, a second resistor (R3, R4) connected in parallel with the LED, and control means (IC) responsive the voltage across the second resistor (R3, R4) arranged to operate a switch (Q2) for connecting a…",
  "path": "/patents/1083978",
  "publishedAt": "2004-09-15T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60Q11/005",
    "BRITAX P M G LTD [GB]"
  ],
  "textContent": "A failure warning device for an LED comprises a first resistor (R1) connected in series with the LED, a second resistor (R3, R4) connected in parallel with the LED, and control means (IC) responsive the voltage across the second resistor (R3, R4) arranged to operate a switch (Q2) for connecting a load resistor (R10) in parallel with the LED when the current flowing through the LED (D1) exceeds a threshold value.",
  "title": "Lamp failure warning device"
}