{
  "$type": "site.standard.document",
  "description": "An emergency lighting system including an auxiliary power supply, a plurality of lights including a first group of lights and a second group of lights, a driver configured to provide power, a switching circuit, a relay, and a controller. The switching circuit includes a driver input configured to…",
  "path": "/patents/1248233",
  "publishedAt": "2019-11-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H05B37/0227",
    "Hubbell Incorporated"
  ],
  "textContent": "An emergency lighting system including an auxiliary power supply, a plurality of lights including a first group of lights and a second group of lights, a driver configured to provide power, a switching circuit, a relay, and a controller. The switching circuit includes a driver input configured to receive power from the driver, an auxiliary power input configured to receive power from the auxiliary power supply, an emergency control input. The has a first position, in which power from the driver is provided to the first group of lights and the second group of lights; and a second position, in which power from the auxiliary power supply is provided to the second group of lights. The controller is configured to output a signal to the emergency control input when an input voltage is below a threshold. Wherein, the switching circuit places the relay in the second position upon receiving the signal at the emergency control input.",
  "title": "EMERGENCY LIGHTING SYSTEM"
}