Institute Newton C. Braga

Circuit Bench

Voltage Comparator VCO (CB13132E)
A configuration using three of the four voltage comparators on the LM339 is shown in the figure and...
15 to 5 V Step Down Regulator (CB18999E)
The maximum current of this circuit is 200mA, and the ripple is only 50 mV. The circuit is...
Polarity Inverter (CB24701E)
This circuit was found in the May 1982 issue of Radio Electronics magazine. The circuit inverts the...