Power loss recovery

[hussainsail2002]

Re: Power Loss Recovery and Power Supply Question

I am trying to building a 3D printer with the power loss recovery feature.

Is it possible to wire the capacitor to the leads that act as Vin and ground for the board ?

It has been said in an older post that the capacitor should be 10000uF rated at 35V.

Is there any wiring diagram that can be followed.

Thanks,
Hussain.

[dc42]

Yes you can do that. However, if you are using a typical 24V power supply then it probably has a spare set of output terminals wired in parallel with the ones you are using to feed the Duet, and it's simpler to connect the capacitor to those spare terminals.

[hussainsail2002]

@dc42

so if I understood correctly,

when the power fails, the capacitor connected would discharge and power the other terminals ??

[dc42]

@hussainsail2002 said in Power loss recovery:

@dc42

so if I understood correctly,

when the power fails, the capacitor connected would discharge and power the other terminals ??

Yes, that's correct for a standard 24V PSU with 2 or 3 sets of output terminals connected in parallel. It may not be true for a 12V ATX PSU because those sometimes have multiple independent 12V outputs.

[hussainsail2002]

@dc42
Thank you !