Institute Newton C. Braga

Circuit Bench

Voltage regulator with operational amplifier (CB8776E)
We found this circuit in a 90s Electronic Design. The circuit is based on a quadruple operational...
Vox (CB14894E)
Vox or sonic switch is a relay activated by the voice or any sound picked up by the microphone. This...
1.5 to 28 x 1.5A power supply LM137K (CB19305E)
This is the traditional source using the LM317 3-terminal regulator circuit. The same source can...