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pecok

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Posts posted by pecok


  1. This is my version of the PSU , All tested all working no problems complete with PCB and BOM aslo with connection drawing, I mounted the transistors on a seperate PCB but you don't have to use the PCB you can just hard wire them.




    Hi,
    i've build this one from PicMaster, but on first attempt i got little firework with fog, both U1 and U2 are gone (cracked) :( does anyone have advice what can be wrong? i have C8 ~ 20000uF

    could it be due to power transistors? (transformer, and 2n3055 's are the only parts which survived from my last attempts)

    How can i troubleshoot it?
    a) can i remove OPAMPS?
    b) can i disconnect power transistors?
    c) what else i can do?


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