Fluorescent emergency ballast self test circuit

Details Fluorescent emergency ballast self test circuit Fluorescent emergency ballast self test circuit

1994-05-03

1997-09-09

Gonzalez, Frank

Electric lamp and discharge devices: systems

Automatic substitution of the power supply

315120, 315129, 315 91, H05B 3700

Patent

active

056660294

ABSTRACT:
A lighting system composed of: an AC ballast for delivering AC power from an AC power source to a lamp; an emergency power supply for delivering AC power to the lamp when the AC power source fails; and a switch for disconnecting the AC ballast from the AC power source when the AC power source fails.

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