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Well, sorry, I forgot to check back on this thread after I found out what the problem was. Yes, the circuit worked, but then I found out I had thermal problems. My dimmable ballast only worked with forced cooling. Otherwise, the Mosfet would always burn after a few secs. I didn't know until then...
After fifteen days breaking my head to find out what was wrong with my circuit, I come to see that it was not only on the spice schematics that my BJT was inverted -.- And believe me, I had checked it more than once once... That was rather frustrating....
Well, ok... Transformer bought! I will try a few things and tell you how it works out. I do have a lent portable oscilloscope with me, but its downside is that it has only one channel, which is a real pain in the ass for some things.
mtwieg, you're right about mixing the emmiters and collectors...
Well, I understand that it is more certain to work with a transformer, but couldn't I just keep the 1.5uF capacitors from the AC to the rectifier bridge, followed by a 20V zener in series with a resistor, and in parallel with the zener, the LM7815? (I'm on lunch at work and have no access to a...
Ok, so, first of all, thanks for your answers.
Indeed, I think I have skipped information. Attached you will find a more complete picture of my circuit (I have changed the names of some of the components, so that referencing them is easier - the 1T resistors are only to aid convergence). The...
I'm new to the forum, so Hello World! Of course I have registered here because I need help with something, but the forums topics seem quite interesting, so I believe I'm about to become a follower.
Here's the deal: I have designed for my final work at college a dimmable ballast for a...
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