Power Supplies

Are you searching for a new, cheap power supply for your CNC project? Well, here you have two options for a 24V / 8A supply.

supply-comp_2I bought Sonyang for $35 just here. I don’t remember how much I paid for the MW one, but for sure it was in the same range. So here are the guts, Sonyang on top, MW below.

supply-comp_1

Some things to point out:

  • Yellow plastic cover on MW is not well designed: can’t be fully opened (I will just remove it).
  • Soldered fuse on MW, socket fuse on Sonyang.
  • Dual output 24V terminal on MW; triple on Sonyang.
  • Way better output rectifier heatsink on Sonyang.
  • Overall larger components on Sonyang.

Of course a visual inspection of the boards doesn’t tell the full history, but to me, there’s a obvious choice.

Update: Second power supply brand is “Meang Wel”, not “Mean Well” as I thought. Real Mean Well power supplies seems to be a lot better.

 

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