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what exactly do the transistors do?
what are the Cl and Ch used
what are the Cl and Ch used for and totally I need to know what exaclty every thing is doing.
Attached is a simulation of a basic similar circuit except this circuit is not self oscillating.
AN1543 is describing the circuit very well. I'm having some more problems. Please take a look at figure 11 on 6 and answer thesequestions:
1. in the 3th paragraph on page 10,it talks about the influence of C2 and C3. But I can't figure out how!
2. Page 13 talks about the effects of D3 and D2 As well as tonigau said. I need more explanation about it.
3. I still don't know how Cp prepairs the starting voltage. Could u explain its work.
Rehearse across the circuit for few more times and you might realize, as you don't get the thrill unless you realize for yourself.
A start is given and the internet and your text books should help you. Once some senior explains, the thrill is gone as perhaps it would amount spoon feeding (if I can use the term)I need more information to get it for myself.
I have this ballast in hand with some blown components. I figured out what the blown components are but the Q4. Can you guess what it is?
I guess it's a SCR. Am I right?
Fahime please post a clear photo of the board.
What are the markings on the device Q4
Did youi draw out this schematic or is it supplied with the hardware.
How did the parts blow, in use, lightning, testing ???