I am using an example circuit from here to convert 24VAC to 5VDC.
It is driving a wemos D1 mini with relay and I have it connected to a 24VAC sprinkler solenoid valve.
I did use components on hand, so the TVS I am using is 37V and the 1000uF cap is 60 volts. I have components of the suggested ratings in the example circuit (40V TVS and 100V 1000uF) coming.
With components on hand the wemos runs a treat, when I am not turning the relay ON. When I run a script to turn the relay ON and OFF in 5 second stints the system runs for a time then crashes. I don’t have an oscilloscope so can’t check what is going on.
I am assuming the TVS is too tight and I need the 40V TVS that are still in the mail.
In any event. I will report back once I have the recommended components installed.
Has anyone else a circuit design for 24VAC to 5VDC using this Pololu widget please? The only other option I have, after TVS and maybe bumping the voltage rating of the cap, is that the circuit needs something else?