General connection method of fluorescent lamp circuit diagram

Published:2011/4/7 2:04:00 Author:Ecco | Keyword: General connection method , fluorescent lamp | From:SeekIC

General connection method of fluorescent lamp Fluorescent lamps used in homes and public places lighting and so on, with luminous efficiency, long service life, Figure 20 is the general wiring diagram for lamp. Fluorescent working principle: When the switch is closed, power is on, the lamp doesn't start to discharge , power supply voltage is added to two metal contacts of the starter through the filament, then the neon tube produces glow discharge and heat, the two contacts are connected, so the current through the ballast and the filament at both ends of the tube, the filament heating and emits electrons. At this time, the neon tubes are short cut by metal contacts and stop producing glow discharge, two metal contacts are separated by temperature declining. At this moment, the ballast will produce high induced electromotive force, which is added to the supply voltage in series and causes producing glow discharge at both ends of the lamp, so fluorescent is lit.



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