Institute Newton C. Braga

Circuit Bench

Symmetric power source using a single secondary transformer (CB5459E)
In the figure we have a way to obtain a 15 V symmetrical source with a 30 V single winding...
LED VU (CB22157E)
This circuit was found in a 1989 publication. The operational amplifier supports equivalents. The...
Pulse Logic Test (CB4721E)
This logic level indicator also indicates the presence of pulsating signals through a third LED. It...