This zero-crossing circuit was found in the 1989 Radio Electronics Experimenter. The Triac must be controlled according to the load.
The integrated circuit used in this filter is not very common today, but the configuration can be implemented...
In fact, this is the circuit also known as “vox”, that is, a relay triggered by sound. This...
This circuit makes it possible to reverse the direction of a DC motor through a relay controlled by a...