can someone please explain to me how a self regulating power supply works? the reason im asking is because i got a hold of a 24 volt 10 amp self regulating power supply. ive built a couple power supplies in the past and they had power transistors in them. this has a circuit board with the electronics. this had NO transistors in it(other than to-92 trannys on the circuit board). i have a couple pics. TY

 

Is one of those IC's a '723'?

 

That's a battery charger, not a power supply.
I count seven ICs on the main board. What are the numbers on the ICs?
What are the numbers on the TO-92 devices? I'm betting that they are SCRs or Triacs.

 

no none of them are the lm723. that is the ic i used in
another lab power supply.

the ic #:

tc4040bp
tc4043bp
tc4001bp
tc4020bp
ua741cn
mc14093bcp fnt9439
mc14584bcp fic9430

2n3906

cant read the other 2 transistors

sgtWookie, is there a difference between a 24 volt regulated charger and a fixed regulated 24 volt supply? please elaborate ty

 

The transformer construction and cap indicate it is a ferroresonant type regulating output circuit. If you google on that then you should get a better understanding of its principal operation mode.