power supply with both ics tl494,lm339

AnalogKid

Joined Aug 1, 2013
8,106
Your question is very poor, as it has almost zero useful information.

I'm sure there are dozens, and maybe hundreds of such schematics online. Do you want ones with *only* those two ICs? If so, that is much more difficult. Most supplies use and opamp as the core of the control circuit, not a comparator acting as a linear amplifier.

Probably should have asked this first: Linear or Switching?

ak
 

crutschow

Joined Mar 14, 2008
23,352
We don't need a game of 20 questions here. :rolleyes:
Tell us exactly what type of supply you are looking for (as you apparently already have one in mind).
Why those specific parts?
 

absf

Joined Dec 29, 2010
1,942
Just did a google search on "PC ATX psu schematics" and I got one with the 2 chips as you specified. There may be more if you search more thoroughly. Allen

pc_psu-X6HKE.png
 

Dodgydave

Joined Jun 22, 2012
8,389
The only way to limit current is to monitor the pulse transformer T2 current on the Complimentary output, as in this circuit using R10 and D14 on pin 16, this is one of the comparators in the chip with the ref voltage on pin 15.


s_atx01b.png
 
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