atx transformer used in car smps

hentai

New Member

• Sep 9, 2007

• #1

hello everyone its been a long time and i wanna say im sry somehow that i only come to you in need but times are hard...

So i was thinking of using the transformer from an atx power supply in my smps. Take a look at this if u please:
http://mdcs.w.interia.pl/car100w/trafoatx.jpg
http://mdcs.w.interia.pl/index.html

as u can see there is a pin that the author noted 5 but i cant seem to understand its place on the transformer. Can someone shed some light?
Thank you!

 

audioguru

Well-Known Member

Most Helpful Member

• Sep 9, 2007

• #2

What country and what language is that website?
Why does it load so slow?
I saw the schematic for the TDA7294 70W into 8 ohms amplifiers but I didn't wait for it to load the power supply schematic.

 

hentai

New Member

• Sep 9, 2007

• #3

i have no idea to answer ur question. It loads pretty fast for me...

 

C

CheapSlider

Member

• Sep 9, 2007

• #4

audioguru said:

What country and what language is that website?

Click to expand...

Poland (Polish?)

It loads OK for me

The web page appears to be about audio, in particular sub woofers

 

audioguru

Well-Known Member

Most Helpful Member

• Sep 9, 2007

• #5

I clicked on a link and I got a very slowly loading hand-drawn sketch of the schematic. It started very fuzzy and after loading for a few minutes it got clearer and clearer.

 

hentai

New Member

• Sep 9, 2007

• #6

what about pin 5? Any ideas?

 

audioguru

Well-Known Member

Most Helpful Member

• Sep 9, 2007

• #7

Pin 2 is the center-tap of one winding and pin 5 is the center-tap of the another winding.

 

hentai

New Member

• Sep 9, 2007

• #8

i know that but which of the transformers pins is pin 5 actually? This is what i cant figure out....

 

audioguru

Well-Known Member

Most Helpful Member

• Sep 9, 2007

• #9

I have never seen a transformer from an ATX power supply. They are probably all different.

You could measure the 3 pins for one winding with an ohm-meter.