Notifications
Clear all

24v Power Supply question  

  RSS
Eikonic
(@eikonic)
Eminent Member
24v Power Supply question

Hey all. I recently swapped out to a Meanwell LRS-350. This realy isnt a question about the MW, or even the Prusa PSU, but more on how 24v supplies work. Since these are 24v supplies, does that mean that each of the 2 groups of wires is only putting out 12v, and when they are combined when they reach the Einsy they add up to the total 24v required?

The reason i ask is because im going to add some 12v LEDs onto the power supply. I know this was frowned upon with the stock supply, but with the MW i have now, there is plenty of headroom. Preemptively before my printer even arrived and i was ordering other add on do-dads like LEDs, I bought a 24v-12v buck converter. So im wondering if its necessary to use the converter, or if i can just tap into 1 side of the power supply, if it indeed does provide 12v across each set of wires.

I dont have a voltmeter, so I have to ask. Thanks!

Posted : 01/08/2018 2:30 am
vernon.b
(@vernon-b)
Eminent Member
Re: 24v Power Supply question

No, this is a common rail PSU. There is only single output of 24V. All the + and all the - screw terminals are ganged together.

Posted : 01/08/2018 2:33 am
Eikonic
(@eikonic)
Eminent Member
Topic starter answered:
Re: 24v Power Supply question

thanks for clarifying Vernon. Is the stock Prusa 24v PSU a common rail also? Just incase someone else sees this in the future and wants to know.

Posted : 01/08/2018 4:46 am
JoanTabb
(@joantabb)
Veteran Member Moderator
Re: 24v Power Supply question

Yes!

Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 01/08/2018 12:28 pm
Share: