Electronics > Beginners
Discrete Regulated power supply
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blackdog:
Hi HoracioDos,  :)

Of course you made at least 1 mistake!  :-DD
Back to the drawing board, the parts around the 6.2V zener are wrongly drawn.

Thank you for showing this spice setup!

Kind regards,
Bram
HoracioDos:

--- Quote from: blackdog on July 02, 2018, 05:45:11 pm ---Of course you made at least 1 mistake!  :-DD
Back to the drawing board, the parts around the 6.2V zener are wrongly drawn.

--- End quote ---
Thanks Bram! I'll try to fix it and I'll upload it again in the same post.
PS: Done!
HoracioDos:
Hello.
This is the model for the elektor 1982 PSU. Simulation lasts forever. I can't find the problem (I'm pretty tired right now). I wanted to see if the LM741 can be changed to a TL071. Model and the LM723 part are inside the zip file. I'll be grateful if someone makes it work.
not1xor1:

--- Quote from: HoracioDos on July 03, 2018, 08:29:32 pm ---Hello.
This is the model for the elektor 1982 PSU. Simulation lasts forever. I can't find the problem (I'm pretty tired right now). I wanted to see if the LM741 can be changed to a TL071. Model and the LM723 part are inside the zip file. I'll be grateful if someone makes it work.

--- End quote ---

that is the classical Harrison schematic:
http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1962-07.pdf
The LM723 is used just as voltage reference. You might use any other reference in the simulation.

BTW you can find many useful informations about power supplies in this really interesting application note of HP/Agilent
http://literature.cdn.keysight.com/litweb/pdf/5952-4020.pdf
Cliff Matthews:

--- Quote from: blackdog on July 02, 2018, 07:32:12 am ---Hi Cliff,

Do not order or buy anything, let me first do some tests...

Circuitboard cleant with IPA and a old toothbrush, i hope is stays this way  :-DD


Heathsink mounted with a Ty-Wrap.



Frontview of the testsetup.



Backside.



And now its time to doe some work!
Later more.

Kind regards,
Bram

--- End quote ---
Will we be privileged to see your finished product? (and maybe any final schematic/asc corrections?)  :-+
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