Power back up

Thread Starter

Ettienne

Joined Mar 26, 2019
4
Good day
I need a power back up that gives 0,2-second 12v 2a power. Is there any way I can use a power bank with capacitors to do that
 

MisterBill2

Joined Jan 23, 2018
9,304
Short answer: YES. But the qualifier is that all simple capacitor backup arrangements have a falling output voltage as the power is taken from them. That is the basic R-C time constant reality. So iif the requirement can live with a drop in voltage then just a simple capacitor bank will work very well. But the capacitors will be fairly large. So the first step is to decide what voltage you need to have at the end of the 0.2 second time.
 
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