233279 ⎘
Circuit arrangements or apparatus for igniting or operating discharge lamps; Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps Arrangements for protecting lamps or circuits against abnormal operating conditions
Sub-classes:Power circuit for a gas discharge lamp
#2ELECTRONIC BALLAST FOR PARALLEL LAMP OPERATION WITH PROGRAM START
#3Gas-discharge lamp controller utilizing a novel preheating phase control mechanism
#4METHOD OF CONTROLLING A FLUORESCENT LAMP, A CONTROLLER AND A FLUORESCENT LAMP
#5Preheating control device, lamp driving device including the same, and preheating control method
#6Lighting unit and discharge lamp
#7Circuit arrangement and method for operating a low-pressure discharge lamp
#8Surge protection module for luminaires and lighting control devices
#9Apparatus and method for monitoring at least one fluorescent lamp
#10CFL Auto Shutoff for Improper Use Condition
#11Monitoring device
#12ELECTRIC DISCHARGE LIGHT-REGULATION MATCHING CIRCUIT
#13Operating unit and lamp with component alignment for safe failure mode
#14Lighting unit and discharge lamp
#15Current-limited starting type capacitive electronic ballast for fluorescent lamp
#168-pin PFC and ballast control IC
#17Ballast control circuit
#18Dimmable ballast control integrated circuit
#19Ballast with lampholder arc protection