This double time constant circuit for resistive loads was found in documentation from the 1980s. The triac must be equipped with a heat sink.
This circuit allows to obtain an output pulse independent, in duration, of the action time on...
This TTL circuit was obtained in a 1985 Italian magazine, but it can be easily implemented, as the...
In this circuit, the output voltage is Vxx plus the zener voltage. The circuit is from the SGS...