Electronics > Projects, Designs, and Technical Stuff

Simple DIY Linear PSU

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panoss:

--- Quote from: Zero999 on March 06, 2020, 09:18:52 am --- Zipping it to a .zip file is a more acceptable way to upload file types which are not supported by the forum.

--- End quote ---
When I had zipped a file I was told it 'd be better not to.
Because people avoid zipped files because of viruses.

So, here it is zipped, in the attachment.

xavier60:

--- Quote from: panoss on March 06, 2020, 09:21:07 am ---
--- Quote from: xavier60 on March 06, 2020, 09:10:15 am --- https://www.eevblog.com/forum/beginners/lm324-power-supply-with-variable-voltage-and-current/725/

--- End quote ---
Have you built it? Does it work ok?

Could you please send me the Eagle files (I have Eagle 7.7.0) and the LTSpice files?
I 'll send you a pm with my email.
EDIT: I tried but you have blocked PMs?

--- End quote ---
Sorry, I don't use a simulator. The design has been thoroughly tested by the thread's opening poster.
I had built a bench supply with almost identical design which works perfectly well, https://www.eevblog.com/forum/projects/linear-lab-power-supply/375/. But I prefer the other design as it has better Under-Voltage-Lock-Out behavior.
If you decide to go down this path, you need to be prepared to do bread-board testing. I want some changes made.

panoss:

--- Quote from: xavier60 on March 06, 2020, 09:37:50 am ---If you decide to go down this path, you need to be prepared to do bread-board testing. I want some changes made.

--- End quote ---
By 'this path' you mean mike_mike 's design?
Why do I need bread-board testing? mike_mike has tested it already

xavier60:

--- Quote from: panoss on March 06, 2020, 12:27:36 pm ---
--- Quote from: xavier60 on March 06, 2020, 09:37:50 am ---If you decide to go down this path, you need to be prepared to do bread-board testing. I want some changes made.

--- End quote ---
By 'this path' you mean mike_mike 's design?
Why do I need bread-board testing? mike_mike has tested it already.

--- End quote ---
That's right, the design that mike_mike settled on. I would like to make some minor changes. There are some parts that aren't needed like the op-amp for the CC LED and a few other bits. I like to test a design on a bread-board before making a PCB.
Testing on a simulator is ok also I guess, I have never tried it.
I can draw a schematic.

panoss:
Draw it and I 'll try it on Proteus as it 's a lot easier than  the breadboard.
Also add the transistors (for 5A output current) in the 'Power block' as in mike_mike 's design they have been ommited.

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