Selection techniques of electronic ballast components
1.1 Magnetic core
EE10:below 10W EE13:below 13W EE16:below 18W EE19:below 24W EE19 thickened,EE20:below 30W EE25,EI25:below 45W EE25 thickened EI28:below 80W EI33:below 110W greater than 55W recommended to use 2 inductors The power can be 3W~~~~125W
1.2 Clearance,EE10 EE13 open 0.6 Others can be opened at 1.0,please note that the maximum gap can not exceed 1/3 of the middle length,generally low power 10W~20 W 0.4 30w~40w 0.6 60w~80w 0.8 100w~110w 1.0
1.3 Wire diameter
7W¢:0.11 7-13W:¢0.13,13-20W:¢0.2,20-30W:¢0.25,30-60W:¢0.11mm&TImes;6 shares 60W-80W:¢0.11mm&TImes;10 shares
80W-110W:¢0.2mm&TImes;10 strands,4.5 times of cathode current can be considered as square 1mm=1A
Selection techniques of electronic ballast components(inductance,magnetic ring,filter electrolysis,transistor,resistance)
2.Magnetic ring
The magnetic ring is also called a pulse transformer.I mainly use 2.5K:for lamps below 7W¢8*5*3mm,3:13:3.7-20W for lamps¢10*6*3mm,3:7:3.20-30W¢10*6*5mm 3:5:3 for lamps,¢10*6*5mm for lamps with 30-80W,3:3:3.80-110W for lamps with¢12*7*5mm,2:2:2
3.Filter electrolysis
1.5~1.8uF for lamps below 7W,1.8~2.7uF for lamps with 7-11 watts,3.3uF for lamps with 11-15 watts,6.8uF for lamps with 15-20 watts,and 10uF for lamps with 20-30 watts,15uF for 30-45 watt lamp,22uF for 45-60 watt lamp,33 UF for 80-100 watt lamp,47uF for 80-100 watt lamp,68uF for 100-110 watt lamp
The withstand voltage is 400V~450V,the electrolysis is in the ballast,the life is relatively short,you must pay attention to choose capacity,leakage current,and high temperature life.