LT1016 – LS74121 Voltage Controlled Pulse Width Generator/ Monostable Multivibrator

Monostable multivibrator poduces a fixed pulse width when receiving a trigger signal on its input. The pulse width of the output is fixed regardless of the input pulse duration/width. In practical application, the width of the output pulse is determined by choosing the right components values for certain application. With this circuit schematic diagram, we can build a voltage controlled pulse width generator, so we can provide a flexible monostable multivibrator for doing many experiment in the lab. By adjusting the control voltage between 0 to 2.5V, we can adjust the width of the monostable multivibrator output between 0.05 to 2.5 uS. A full-scale calibration trimmer is provided to make sure this controlling range. Here is the schematic diagram of the circuit: