News:

Hi!

Welcome to my DIY audio forum.

Cheers
Per-Anders Sjöström

Main Menu

SSR04 output voltage

Started by Brambus, June 06, 2015, 10:08:19 AM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

Brambus

Hi P-A
i have just finished the first board you sold of this power supply.
I used 15V LM329 BOM; put 1K multiturn trim over the IC instead of the wire link.

All seem to work fine, but i can trim the voltage only from about 15.7 v minimum, up to 22-23 V
There is something that i should check/change to get a wider range of regulation ?
Thanks

Brambus

peranders

Please start to read the documentation. You have the formula there but if you have any problems with that I'll help you on Sunday.
/Per-Anders Sjöström, owner of this forum

Homepage with my DIY hifi stuff

Brambus

Thank you P-A. Problem solved.
Vout 15.8 volt is perfectly inside the 5% range of tolerance of LM329

So...
taking away R18 and R19 from the board (4K7 ohm),  the trimmer start regulating at about  14,28 volt.
I'm now able to obtain 15V perfectly stable from both sides.

Really a beautiful kit (as always...)

Cheers
Paolo

peranders

Glad that everything worked out for you.  :-D
/Per-Anders Sjöström, owner of this forum

Homepage with my DIY hifi stuff