Hello,
I have a 9V powerbank, and could adapt or find an usb to dc connector (round one) to have this powerbank input passing through a +/- connector that i could connect to some DIY box.
I would like this DIY box do this :
-If electricity coming from input 1 current (normal plug to 220/110VAC), power device with it.
-if no electricity coming from input 1 current, instantly (could be the problem, no power cut more than 1sec should be done, if possible none..), take current from second input, my 9V powerbank.
I don't know in circuit. At least what a capacitor does, that a diode protect from reverse polarity, a fuse burn and protect from overheating..
I have a 9V powerbank, and could adapt or find an usb to dc connector (round one) to have this powerbank input passing through a +/- connector that i could connect to some DIY box.
I would like this DIY box do this :
-If electricity coming from input 1 current (normal plug to 220/110VAC), power device with it.
-if no electricity coming from input 1 current, instantly (could be the problem, no power cut more than 1sec should be done, if possible none..), take current from second input, my 9V powerbank.
I don't know in circuit. At least what a capacitor does, that a diode protect from reverse polarity, a fuse burn and protect from overheating..