Ekonomik Lambaların Şemaları

**Prof. Dr. Sinsi** · 10-15-2012

ekonomik lambaların şemaları

Introduction
Compact fluorescent lamps have some benefits in comparison with classic light bulbs

It is lower power consumption (to 80%) and much longer lifetime (5 to 15 times)

Disadvantages are longer starts mainly at more expensive types, impossibility to use darker and price

Lamp start
R6, C2 and DIAC mades first pulse to base of transistor Q2 and cause his opening

After start is this section blocked by diode D1

After every opening of Q2 is discharged C2

There is not possible to collect enough energy for reopening of diac

Next are transistors excitated over very small transformer TR1

It consists of ferrite ring with three windings (5 to 10 coils)

Now are filaments powered over capacitor C3 from voltage rises from resonant circuit from L1, TR1, C3 and C6

Than the tube lights up is resonation frequency specified by capacity of C3, because he has much lower capacity than C6

In this moment is voltage on a C3 over 600V in a relation to used tube

During start is peak collector current about 3 to 5 times bigger than during normal operation

When the tube is damaged, there are hazard of transistor destroying

Isotronic 11W
Lamp Isotronic 11W use a little modified wiring, where doesn't exists starting circuit with a diac

Lamp starts probably thanks to capacitor C1

Luxtek 8W
Lamp Luxtek 8W use classic wiring with a small changes

Interesting is only thermistor, which probably makes light start and filament preheating

Maway 11W
Lamp Maway 11W use different wiring too like Isotronic lamp

PHILIPS ECOTONE 11W
Lamp PHILIPS ECOTONE 11W use again simplified wiring like a Isotronic lamp

10-15-2012	#1
Prof. Dr. Sinsi	Ekonomik Lambaların Şemaları ekonomik lambaların şemaları Introduction Compact fluorescent lamps have some benefits in comparison with classic light bulbs It is lower power consumption (to 80%) and much longer lifetime (5 to 15 times) Disadvantages are longer starts mainly at more expensive types, impossibility to use darker and price Lamp start R6, C2 and DIAC mades first pulse to base of transistor Q2 and cause his opening After start is this section blocked by diode D1 After every opening of Q2 is discharged C2 There is not possible to collect enough energy for reopening of diac Next are transistors excitated over very small transformer TR1 It consists of ferrite ring with three windings (5 to 10 coils) Now are filaments powered over capacitor C3 from voltage rises from resonant circuit from L1, TR1, C3 and C6 Than the tube lights up is resonation frequency specified by capacity of C3, because he has much lower capacity than C6 In this moment is voltage on a C3 over 600V in a relation to used tube During start is peak collector current about 3 to 5 times bigger than during normal operation When the tube is damaged, there are hazard of transistor destroying Isotronic 11W Lamp Isotronic 11W use a little modified wiring, where doesn't exists starting circuit with a diac Lamp starts probably thanks to capacitor C1 Luxtek 8W Lamp Luxtek 8W use classic wiring with a small changes Interesting is only thermistor, which probably makes light start and filament preheating Maway 11W Lamp Maway 11W use different wiring too like Isotronic lamp PHILIPS ECOTONE 11W Lamp PHILIPS ECOTONE 11W use again simplified wiring like a Isotronic lamp