Institute Newton C. Braga

Circuit Bench

Car Battery Charger (CB17531E)
This simple charger has no charge indication or other features of a more sophisticated design. It only...
3-Component Amplifier (CB16117E)
Apart from the speaker, this amplifier uses only 3 components: two transistors and a resistor....
Stepper Motor Drive (CB21490E)
This circuit was found in a 1967 Electronic Design. The circuit makes use of components from the...