I want to switch Power Between a AC/DC adapter which is supplying power to the circuit when AC power is On and when power loss power the circuit using 12V 7Ah Battery. AC/DC adapter is rated 12V 1Ah.
First I thought switch power with a Relay and Arduino with a sensor to monitor AC power loss. but I Came to know there is a better way using a Diode Oring.
Please explain how to use diodes to switch between power Supplies and what diodes to use for this?
I saw that in a article, to Diode ORing to work main supply should greater than backup. so in my case both the main supply and backup supply is 12V.
so Diode ORing option will not work as expected?