led 230V

@enduro70

9 years ago

https://everycircuit.com/circuit/6548691668434944

9xLED(2V , 20mA) R(max 625ohm , 0.25W) Rcap=U/I Rcap=(230V-18V)/0.02A Rcap=10600ohm C=1/(2*tt*frequency*Rcap) C=1/(2*3.14*50Hz*10600ohm)=300nF