High power NPN transistor switch

@lipa4r

6 years ago

https://everycircuit.com/circuit/4635784809021440

High power npn transistor switch not inverted. Could be optoisolated on 5V side. If faster switching speed needed, than 10k resistor on emiter side of first npn transistor could be lowered as well as base resistor of first npn transistor.