Institute Newton C. Braga

Circuit Bench

Power Operational (CB15059E)
This circuit can provide several watts of output depending on the pair of transistors used. BD135...
Automatic Lighting Control (CB15752E)
The original purpose of the figure circuit, suggested by National Semiconductor, is to keep the...
Relay Driver (CB247E)
Relays from 20 mA to 200 mA can be driven by this sensitive circuit.6 or 12 V relays can be used...