I try to implement some sensors, motors which are controlled via an Arduino Nano. Depending on the state of the program a power relay will also be switched. Since the relay needs more power than the Nano can provide it needs its source elsewhere.
Now to my crazy idea. I have a "device" in close proximity to my planned PCB which can provide 24V/DC@3A. Is it possible to power my Nano over a "Three-step-voltage divider"?
Since I do not want to burn unnecessary energy over the Vin pin I limit the voltage to 8V (7-12V from the datasheet) and 5V for the power relay. I attached a schematic.
Is it possible to "leech" of this device without a voltage regulator?