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-   -   Saps-400 (http://www.diyaudio.com/forums/elektor/125693-saps-400-a.html)

DoctorC 1st July 2008 08:25 AM

Saps-400
 
Hi,
I just read the article in Elektor 06/2008 about this smps psu.
Unfortunately there is no complete schematics.
The control board is missing.
Can anybody suggest some schematics for a PWM controller with feedback to adapt to the rest of the psu?

Thanks
Enrico

luka 2nd July 2008 05:45 AM

Hi

Oh god, cacn't you find one schematics on this forum? Did you even shearched? Why copy something you can make yourself.

DoctorC 2nd July 2008 05:56 AM

I searched and read a lot and not only the forum.
What I didn't understand is if any PWM controller can be fitted to the rest of the SAPS-400.
And what about the feedback loop.
I'm new to SMPS, still learning theory and reading as much as I can, sorry if I wrote something stupid.
I just wanted an example to see how it can be connected and what are the parameters.

Enrico

luka 2nd July 2008 06:09 AM

Hi

The only problem is that this smps is a selling unit, they can't give you everything, and control board is more important then main board. I don't know what did they used but you could use any, again it all depends on what they have. Some with feedback. There are many ways to do both parts (control and feedback), but any of them could be used, so not much help i'm affreid

DoctorC 2nd July 2008 06:13 AM

that's already something to start with.
So I can build a "base" based on their schematics and plug in different controllers to test.
Thanks for your help

Enrico

luka 2nd July 2008 06:16 AM

Hi

Their is some what more complex then needed, you could use less parts and it will still work great

DoctorC 2nd July 2008 06:22 AM

Ok. I will give a look at the schematics.
Thanks

DACMan1 3rd July 2008 07:58 PM

I am planning to design something similar this weekend. Might just post schematic and pcb here if there is enough interest...

luka 3rd July 2008 08:36 PM

Hi

If you can make it to work, please do

DoctorC 4th July 2008 04:56 AM

Hi DACMan1,

there is a lot of interest :)

Please post it


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