Institute Newton C. Braga

Circuit Bench

Physiotherapy Laser (CB17459E)
This circuit allows feeding a small semiconductor laser to obtain a useful resource for...
100 Hz to 1 kHz Function Generator (CB15023E)
Two operational amplifiers 741 are used in this circuit that must be powered by a symmetrical...
Digital Pulse Rate Counter (CB16772E)
In fact, this 1994 circuit uses a scale of LEDs to indicate the pulse rate applied to its input....