Hi!
I have a circuit board that has a processor which runs on 3V3. Input to the board is 12V so there is some power management as well. But, some times the 12V disapers during short periods. These periods are to long to solve with capacitors because the processor uses to much current.
Im thinking of using a battery-pack, like NiMh-batteris. When the 12V dissapereres the current will come from the batteries. Does anyone have any ideas of circuits to solve the switching between these power sources..?
/C