2 power supplies in 1 circuitc

Other Hardware Motors, Mechanics, Power and CNC
1

I'm trying to power one motor(including driver), whith 2 power supplies
WARNING to avoid problems whith voltage issues, I added 2 relays in break of positive wire out of first power supply & turn on them sequentally whith delay of a few seconds
but motor run only when only one relay is in circuit
I tried to add diodes on positive wire out of first and second relay, but it didn't work either

SO, what do I do now?
I will appreciate if smbd give me a scheme how properly 2 power supplies are connected in one circuit, receiving any ideas

2

Your topic has been moved. Please do not post in "Uncategorized"; see the sticky topics in https://forum.arduino.cc/c/using-arduino/uncategorized/184.

What is the problem that you're trying to solve with the two power supplies (what kind of voltage issues); would one bigger power supply not work better?

Please show a drawing how it's currently wired.

3

I'm not tought how to draw schemes yet, so I'm not sure I will do it correctly

4

PS
and I don't see theme that answers my question

5

PPS
and I rather not trying to make more powerful power supply, than looking for method in a way to switch between 2 power supplies, when I need to

6

Follow this tutorial to learn how to read and draw circuit schematics: https://learn.sparkfun.com/tutorials/how-to-read-a-schematic

It is a very valuable and essential skill for communicating with others about circuitry.

7

Didn't work - what exactly happened? Were the two supplies set to precisely the same voltage beforehand, and were the diodes you used as close to identical as possible? Both matter.

8

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