Building alarm system with synchronized strobes

Communications: electrical – Systems – Signal light systems

Patent

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Details

315241S, 340331, G08B 500

Patent

active

058866205

ABSTRACT:
In a building fire alarm system, the light strobes of a network of strobes are synchronized to flash simultaneously. Each strobe has a charging circuit to charge a capacitor which discharges through a flash tube. Once a capacitor is charged, the charging circuit is disabled. A synchronization pulse is applied through common power lines to trigger discharge of each strobe capacitor through the flash tube followed by recharging of the capacitor.

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