I am theorizing using an arduino uno for the controller of a 100V to 24V power supply, however I have come to the predicament where I first need to power the arduino from 100V before I can use the arduino to make the 24V supply. I have included this info for background, but it is not so relevent to the problem. My question is what is the simplest way to power the arduino in this case. Efficiency does not need to be high.
I am thinking that perhaps a zener diode and resistor will do the trick? Perhaps hooking up another voltage regulator or capacitor to the diode may help too? One more thing, the power is generally low ripple, but it can vary slowly between 60V to 150V over time.
I am thinking that perhaps a zener diode and resistor will do the trick? Perhaps hooking up another voltage regulator or capacitor to the diode may help too? One more thing, the power is generally low ripple, but it can vary slowly between 60V to 150V over time.