Jump to content
Electronics-Lab.com Community

12v 3a Transformerless Power Supply


uchihahayato

Recommended Posts


  • 1 year later...
  • 3 years later...

The capacitor will have AC across it, not DC so you cannot use a polarized electrolytic capacitor.

I could not find a film capacitor rated at 47uF/400VAC anywhere. They were available 60 years ago, were very large and very expensive. But transformers are inexpensive and are available everywhere today.

Link to comment
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.

Guest
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.

Loading...
×
  • Create New...