Category «Control and Monitoring»

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 …

Telephone Circuit: Music On Hold

Waiting a call hold can be boring if there is only silence on the line. It’s a good thing to present an “easy music”  in call hold, make a long waiting time feels much shorter. This simple circuit (consists of diodes, SCR, and some passive components) allows to place the caller on hold in one …