Institute Newton C. Braga

Circuit Bench

Logic Level Indicator (CB1300E)
This circuit, found in documentation from the 1990s, uses a common 7-segment LED display. The...
1 MHz Low Pass Filter (CB4833E)
The integrated circuit used in this filter is not very common today, but the reader can use...
AND function with relay (CB19767E)
In the figure we have the way to implement the E (AND) function with two inputs, in the case of...