Hello.. anyone can help me? I'm trying to design a circuit that will only produce a SINGLE PULSE with T_HIGH period.
Or.. how can i make a 74HC390 to reset forever when it reach 0010 state? Because i just need the pulse from 0001 state. In other word, i just need 1 short pulse. This pulse will not be triggered by any other signal.
This will produce a single pulse. Its main purpose is a debouncer. It does not give a secondary pulse when the switch opens or is kept closed. Pulse duration is set by C2/R2.
How do you turn it off, if the current is still flowing? You could use a GTO device, but then you still have a circuit about as complicated as the other options.