| Electronics > Projects, Designs, and Technical Stuff |
| Help with Pulse Transformer Design |
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| KurtK:
--- Quote from: Berni on August 23, 2019, 01:08:30 pm ---According to the graph this involves 500kW peak of instantaneous input power into the transformer. The sort of transformers that will handle this sort of power efficiently are likely going to the the size of a minifridge and too heavy for a single person to move. That being said air core is used for some of these specialty high pulse power transformers since it might indeed be difficult to find the massive ferrite core for one of these. --- End quote --- Are you sure about that? In the legend in the top right corner it says "current * 100" which usually means "the current you are seeing is scaled by a factor 100", so before you calculate anything with that current you should divide it with 100 first. Edit: You are right, I just calculated - there is a 500kW peak of instantaneous input power. |
| ArthurDent:
So this thread starts with a request for help in designing a “pulse” transformer with little pertinent information given. After multiple requests for more information plus some good suggestions from other posters it turns out that the OP isn’t open to any input and the “pulse” transformer has morphed into a 50KW monster. This appears to be an example of the Dunning-Kruger effect at work and the OP should hire someone who has expertise in the field to evaluate and design whatever the OP thinks they need instead of taking the chance of injury or worse. If this is for a business, you want it designed correctly. If it isn’t for a business but just for the OP, you have to ask what the hell they would need such a transformer for. |
| KurtK:
--- Quote from: ArthurDent on August 23, 2019, 02:48:51 pm ---So this thread starts with a request for help in designing a “pulse” transformer with little pertinent information given. After multiple requests for more information plus some good suggestions from other posters it turns out that the OP isn’t open to any input and the “pulse” transformer has morphed into a 50KW monster. This appears to be an example of the Dunning-Kruger effect at work and the OP should hire someone who has expertise in the field to evaluate and design whatever the OP thinks they need instead of taking the chance of injury or worse. If this is for a business, you want it designed correctly. If it isn’t for a business but just for the OP, you have to ask what the hell they would need such a transformer for. --- End quote --- So you are spooked by the mentioning of 50KW, and for that I deserve a personal attack, thank you very much. Well I guess I had it coming and can only thank myself, I must have exceed some maximum allowed avereage power for posting on this forum that I wasn't aware of. To the rest of the contributes in this post, I tank you for your input. Cheers! |
| patrick1:
Funny i just fixed a bunch of analog panel meters. - this would likley be your best way too measure efficiency in my pamphlet get yourself a sweep signal generator... and let it run one, till you find your best numbers... even if you decide too take another route, - my thinking is, you can never have too many spare panel meters... and @ $3~ each... dosnt hurt too bad. - this is a video i made yesterday about efficiency in transformers. you may fund it interesting ;=D |
| MagicSmoker:
--- Quote from: KurtK on August 23, 2019, 01:19:35 pm ---... Great, if you can design the transformer, I can certainly make it or have it made and then we could close this thread, seems like win/win. We are talking about one transformer only for a prototype device so the only standard it has to meet for now is "no arcing", and if it can sustain a few minutes of operation without core meltdown that would be fine too. --- End quote --- Can you be any more specific about what you are trying to do either here or in a PM? According to the pictures in the OP and other comments by you, the turns ratio is 5.78:1 and the waveform applied to the primary is an exponentially decaying sinusoid, or "ring down" waveform, with a half-cycle period of ~9us, a peak voltage of ~9kV, and a peak current of ~75A; correct? |
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