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ATX Flyback Transformer

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engrguy42:

--- Quote from: Gyro on June 16, 2020, 06:23:53 pm ---
--- Quote from: engrguy42 on June 16, 2020, 06:14:11 pm ---Thanks, mariush. But for me personally, if I'm going to really understand something as complicated as a decent ATX power supply, a 10 minute video isn't going to do it.

My long term plan is to take an actual spare power supply and, component by component, test it and characterize it, then model it in LTSpice. I already have the front end modelled (input filtering, bridge, etc.), and next I'm trying to tackle the main transformer.

IMO, it's so much better to have an actual software simulation model of actual hardware that you can try things out on and do simulations and "what-if's" and test on the bench. And in this case, I already have a schematic that seems to be almost identical to the actual hardware, so it's a whole lot easier to reverse engineer.

BTW, if anyone really wants to understand down on the engineering level how a lot of this stuff works, you might consider the videos of Sam Ben-Yaakov. He's an EE professor (he also writes tons of IEEE papers) with some really in-depth explanations of this stuff.

Anyway, I guess I don't want to be a "10 minute video expert". There are more than enough of those out there.  :D

--- End quote ---

Sounds like you need to stop asking basic questions and go and get on with your modelling then.  :)

--- End quote ---

I know, right? Dumb me, thought I could get some answers here to "basic" questions from the "experts".  |O

Gyro:
Well what are the questions? Trawling back through the thread and filtering the arrogance, the only actual question I could find is 'why didn't my ferrite cored SMPS transformer produce any significant output at 60Hz?' and you answered that one yourself.  :-//

Apart from that, you've just snubbed the replies that anyone's submitted.

engrguy42:

--- Quote from: Gyro on June 16, 2020, 06:33:24 pm ---Well what are the questions? Trawling back through the thread and filtering the arrogance, the only actual question I could find is 'why didn't my ferrite cored SMPS transformer produce any significant output at 60Hz?' and you answered that one yourself.  :-//

Apart from that, you've just snubbed the replies that anyone's submitted.

--- End quote ---

So do you have any relevant technical input for the issue, or are you just here to complain? Because I'm still open to any relevant info on the characteristics and considerations regarding this transformer and how I can model and characterize it. I mean, I already gave a ton of info, including a schematic showing the actual circuit it's in. Why can't we discuss that, rather than go off on irrelevant tangents discussing who the actual manufacturer might be and what's the technically accurate identifier for this transformer?

Gyro:
Sorry, I provide help to lots of people, your responses are too much of a turn-off to be worth the effort though.

You didn't clarify what your questions are by the way. A theoretical and practical text on magnetics and transformer design sounds like your best 'authoritative' option though.


P.S. Member treez might be able to help you, he's done a fair bit of SMPS.

engrguy42:

--- Quote from: Gyro on June 16, 2020, 07:25:28 pm ---Sorry, I provide help to lots of people, your responses are too much of a turn-off to be worth the effort though.

You didn't clarify what your questions are by the way. A theoretical and practical text on magnetics and transformer design sounds like your best 'authoritative' option though.


P.S. Member treez might be able to help you, he's done a fair bit of SMPS.

--- End quote ---

"Read a book" or "watch a video" is of zero help. That shit is beyond obvious. If you have nothing to add because you don't understand the subject then fine. stay out of the discussion.

Geez you guys give me a headache.

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