Variable Power Supply

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Jordy101091
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Variable Power Supply

Postby Jordy101091 » Thu Mar 06, 2014 5:43 pm

Hi everyone,

I want to let you all know, that I have made a variable power supply with the flowcode software.
With this topic I want to share my experience with designing, building and testing this power supply.

Matrix Variable Supply Blog Post

I will be making Blog post about this project, the first one has already been posted "06-03-2014".
There are more blogpost to come about the design mistakes a made, troubleshooting and of course testing the power supply.

Feel free to ask me anything about the project, and I will answer them the best I can.
As I have mentioned in the blog post I will not release the schematics or code. For the simple reason, you will not learn anything from a ready to use solution.
If you find any difficulties I will be pleased to help you.

Anyway enjoy.

Regards Jordy
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medelec35 (Thu Mar 06, 2014 5:44 pm) • JohnCrow (Thu Mar 06, 2014 7:49 pm) • Steve001 (Thu Mar 06, 2014 9:11 pm) • Benj (Thu Mar 06, 2014 11:12 pm)
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Re: Variable Power Supply

Postby JohnCrow » Thu Mar 06, 2014 7:54 pm

Hi Jordy

That looks great, very professional.
I like the idea of the touch screen. Appreciate you don't want to post the circuit details, but I'd like to see the display in operation if you don't mind. :)
That has started the cogs ticking as I could do with a new bench supply myself.
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Re: Variable Power Supply

Postby Jordy101091 » Thu Mar 06, 2014 8:15 pm

Hi John,

I still need to make a video, on how to operate the unit.
So hang on, it will be released soon (I hope).
Currently Im looking for a job, and that takes a lot of my time.

Regards Jordy
the will to learn, should not be stopped by any price

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Re: Variable Power Supply

Postby Steve001 » Thu Mar 06, 2014 9:18 pm

Hi Jordy,

Looks good , that has just give me the inspiration to get my power supply finished that is on the side collecting dust as I write this :(

need to get my finger out and carry on watching those V6 you tube tutorials :)

Can I ask does yours have output current limit ? how did you sort that out ?

Steve
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Re: Variable Power Supply

Postby Jordy101091 » Thu Mar 06, 2014 9:45 pm

Steve001 wrote:Hi Jordy,

Looks good , that has just give me the inspiration to get my power supply finished that is on the side collecting dust as I write this :(

need to get my finger out and carry on watching those V6 you tube tutorials :)

Can I ask does yours have output current limit ? how did you sort that out ?

Steve


Well yes and no, the output is current limited, this limit kicks in if the driving IC Opa549 is outside of its SOA.
For actual current limiting, I need to have a different DAC. The DAC that I have now is a voltage output DAC. To have the function to control the output current I need a current output DAC.

This will all be handled in the next blog post.

Rg jordy
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Re: Variable Power Supply

Postby JohnCrow » Sun Mar 09, 2014 9:44 am

1 in 10 people understand binary, the other one doesn't !

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Re: Variable Power Supply

Postby Steve001 » Sun Mar 16, 2014 9:12 pm

there is quite a good post on design and building of a modular Bench power supply here schematics included also

http://gerrysweeney.com/fully-programma ... er-supply/

steve
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