Institute Newton C. Braga

Circuit Bench

Bistable Relay - 4013 (CB204E)
A negative pulse applied to the input of the circuit shown in figure bellow turns on the relay....
Two-Transistor Timer (CB18960E)
This common circuit with two transistors was found in an old French publication. The supply can be...
PWM with 555 (CB11853E)
This circuit is intended for PWM speed control of a motor up to 500mA, using integrated circuit 555....