{
  "$type": "site.standard.document",
  "description": "A step-down module () for an emergency power system () is disclosed. The step-down module () includes a step-down circuit () to which an AC power source () having an input voltage higher than 277 VAC can be connected, the step-down circuit arranged to convert the input voltage to an output voltage…",
  "path": "/patents/1368673",
  "publishedAt": "2024-08-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J9/065",
    "SIGNIFY HOLDING B.V."
  ],
  "textContent": "A step-down module () for an emergency power system () is disclosed. The step-down module () includes a step-down circuit () to which an AC power source () having an input voltage higher than 277 VAC can be connected, the step-down circuit arranged to convert the input voltage to an output voltage in the range of 120 to 277 VAC. A sensing module is arranged to detect a state of an emergency driver relay () from an emergency lighting fixture (). When the emergency driver relay () is closed, a normal operation mode is active and when the emergency driver relay () is open, an emergency operation mode is active. The normal operation mode is when the AC power source () is suppling AC power to the step-down circuit () and the emergency operation mode is when the AC power source () is not suppling AC power. A control relay () arranged to connect or disconnect the AC power source () from the emergency lighting fixture (. A controller () is arranged to control the control relay depending on the state of emergency driver relay detected by the sensing module. In the normal operation mode, the control relay connects the AC power source () to the emergency lighting fixture () and in the emergency operation mode, the control relay disconnects the AC power source () from the emergency lighting fixture (). The emergency lighting fixture () may be an LED-based lighting device.",
  "title": "STEP-DOWN VOLTAGE MODULE FOR EMERGENCY POWER SYSTEMS"
}