Jump to content
Electronics-Lab.com Community
Sign in to follow this  

Design new 0 to 30V power supply.

Recommended Posts

That does seem odd that the voltage shot up so high when the current limit was increased.

Did it go back down to 12V or did it stay at 22V?

Tha't's not what I intended, although it will work.

The zener was never intented to be a regulated voltage source, it's just there to ensure that the voltage to the op-amp never exceeds 39V.

It might be better that way because the supply to the op-amp will be more stable.

Share this post

Link to post
Share on other sites

Hopefully with a bank holiday here I might get chance to have a look, I shall have a run over the PCB with a scope when the voltage shoot's up and see why the R20 is messing around with the current,
I know it should not but it does I can get upto 8amps by messing around with that.

I have checked my schematic against yoour and to me it's correct, Can you just double check it got me jsut incase it's wrong



Share this post

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Create New...