sábado, 20 de fevereiro de 2016

Relé fotoeléctrico simples com 2 transistores e sensor por led, alimentação 230Vac50Hz

















Simple photoelectric relay with two transistors. Two leds are also used. One for supply indication and voltage regulation, the other for light sensing. Hysteresis is provided for stability. Load switching is made with 24Vdc relay. Supply 230Vac/50Hz

domingo, 7 de fevereiro de 2016