hello,
Can anyone tell me the difference between pulsed transformer and electronic ballast.
regards
Can anyone tell me the difference between pulsed transformer and electronic ballast.
regards
thanks,Pulse transformers are optimized for rectangular pulses of constant amplitude with fast rise and fall times.
By contrast a "ballast" has high leakage inductance and relatively weak coupling between primary and secondary. Trying to put a rectangular pulse through one would be an exercise in futility.
thanks for pointed out error in the Zener diode.Hello,
Where did you get the schematic?
The circuit will likely not work.
The zener diode is the wrong way around.
At the moment there will be only 0.7 Volts on the zener.
BTW, where does the AC voltage for the load come from?
Bertus
hi,I don't think so. Show us the schematic of the UJT triggering oscillator. Why do you want to use a ballast in this application? If you say cost, then I'd bet we can find you a more attractive alternative.
See Max's suggestion that you try Hammondhi,
you just said about a better attractive alternative. please tell me if you have any
regards.
An electronic ballast usually contains a pulse transformer of some sort or other - its more or less an SMPSU.hello,
Can anyone tell me the difference between pulsed transformer and electronic ballast.
regards
A pretty slow variable frequency with what looks like an electrolytic timing the UJT.The schematic in post #05 is not even phase angle firing.It is just random triggering of the SCR at a variable frequency.
Les.
Fairchild AN-3006 gives you a triac opto alternatives to the trigger transformer.hello,
Can anyone tell me the difference between pulsed transformer and electronic ballast.
I have seen a pulsed transformer in UJT triggering oscillator, is it possible to use ballast there?
regards
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