Simple Schmitt trigger III Circuit Diagram

We build 1st Simple Schmitt trigger Circuit Diagram and Simple Schmitt trigger II Circuit Diagram. Now we made to day Simple Schmitt trigger III Circuit Diagram. In this simple circuit the lower trigger point is fixed at % Vcc, but the upper trigger point is adjustable by means of Pin 5 from Vi Vcc to slightly less than Vcc. The Schmitt trigger will operate with input frequencies up to 50 kHz.

Simple Schmitt trigger III Circuit Diagram