This circuit can use almost any operating system and has a high input impedance. The power supply must be symmetrical. The circuit was obtained in documentation from the 1980s.
With the circuit shown in the figure we have a frequency modulation which is produced by a...
This circuit, which applies to configurations with triacs of the TIC series, was found in a...
Found in a 1967 American documentation, this circuit increases the duration of a pulse applied to its...