LM317 based PSU for 48v troubleshoot

GroupDIY Audio Forum

Help Support GroupDIY Audio Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
theaterguy said:
Hey, could you please put here the final schema. I'd like to build only the 48V side.
The configuration that has been finally adopted is not the most efficient for a single 48V rail. If you have the choice of xfmr, you'd better use a 48Vac xfmr, bridge rectifier and single smoothing cap. But if you already have a 24V xfmr, you'd have to use the standard doubler configuration (two diodes, two caps).
 
Sure, no probs...

Here is a quick edit as I lost the original when tried to save on digikey site

Dual%2024v%2048v%20PSU.png



theaterguy said:
Hey, could you please put here the final schema. I'd like to build only the 48V side.
 

Attachments

  • Dual 24v 48v PSU.png
    Dual 24v 48v PSU.png
    47.9 KB · Views: 16
but yes, it would be better to use a 48v Tx instead of the doubler cct
 

Latest posts

Back
Top