Emergency lighting system utilizing improved and rapidly...

Details Emergency lighting system utilizing improved and rapidly... Emergency lighting system utilizing improved and rapidly...

H - Electricity

02

J

315/23

H02J 9/06 (2006.01) H05B 41/285 (2006.01)

Patent

CA 2040554

An emergency lighting system operable on line voltage under normal conditions and on battery power upon failure of line voltage, the system comprises a battery, a battery charging circuit, a line monitor, a lamp/ballast interface and a switching transistor inverter circuit in addition to all electric discharge lamp, ballast and conventional associated circuitry as well as mechanical packaging and connections to line voltage. Advantages in installation and operation of the present emergency lighting system occurs through use of the switching transistor inverter circuit which starts and operates the discharge lamp from the battery on line voltage failure. The emergency lighting system of the invention is rapidly installable through wiring of an associated lighting fixture to the system using power input leads to conventional ballast, thereby substantially simplifying installation of the inverter circuit.

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