Switch signal generation circuit

Switch signal generation circuit

Shown is a switching signal generating circuit . As can be seen from the figure, it is composed of two inverters. Pressing the switch SW1
can output a pulse, which can avoid the interference pulse generated when the switch jitters.
    When SW1 is closed instantaneously, the voltage on tcl causes the output of inverter A to jump once, and the positive feedback of the inverter produces alternative "high" and
"low" level changes. R． Delays the charging and discharging process of cl, which makes the output not affected by contact jitter.