Re: How does these transformers work?

Is this the IC? [url]https://cdn.badcaps-static.com/pdfs/98613d9b3283c8f4d02ed9d36f869dbc.pdf[/url]Re: How does these transformers work...9dbc.pdf[/url]

Re: How does these transformers work?


1) Bridge rectifier working, after that there's two big electrolytic caps that are OK and then after some bits of circuitry (guessing PWM? now I remember reading the wave in the transformer would be like 60 kHz, so I should've known this) there's the transformers I previously wanted to take a measure.

2) Well I don't think I'm gonna mess with the transformers directly anymore (for now). I'll search for short circuits in the transistors just before them.
Thanks for worrying, but I'm extremely careful

...

Re: How does these transformers work?



Ok, so I won't be able to measure without an oscilloscope. Will find a workaround though, thanks...

I'm trying to repair my ATX PSU and I'm sort of trying to follow the flow of current to see where it goes wrong. I was doing fine until came across with two transformers. I'm pretty sure the big one is supposed to output 12V and the smaller 5V. So I need to measure voltages of the primary and secondary parts of both to see if there's something wrong.



After some research, found two datasheets that seem to correspond to my transformers (not sure however):
[url]https://pdf1.alldatasheet.com/datasheet-pdf/view/856626/XFMRS/XF4206-ERL35R.html[/url]
[url]https://datasheetspdf.com/pdf-file/1204705/FPE/EE19/1[/url]...

Re: New Members - please post your introductions here

Hello there, I am an electronics enthusiast. I've come here specifically to find how to repair my ATX PSU.