Emergency lighting driver with programmable output power
US9999108B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2015 |
| Grant date | Jun 12, 2018 |
| Priority date | — |
| Expiry date | Apr 28, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B47/1965
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An emergency lighting driver (100, 200, 400) includes: a power translation circuit (120, 220, 421/423/425) which receives input power from an emergency power source (10) and supplies output power to a load (20); and a programmable control device (140, 240) which controls the power translation circuit in response to a voltage feedback signal and a current feedback signal to cause the output power supplied to the load to have a programmed power output profile (302, 304), wherein the programmed power output profile is a function of time, temperature, the type of energy source employed for the emergency power source, the amount of remaining energy stored in the emergency power source, and/or the occupancy of an area in which the emergency lighting driver is located.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.