PWM Generation using Comparators

356

08:46:45

This is a simple demonstration circuit for generating PWM to control speed of a DC Motor or Dimming DC LED lights that operate at 12V or Higher. Initially the circuit may take some time to charge the capacitor and then 1st OpAmp will generate Triangular wave, and 2nd OpAmp Is used as Comparator to generate Square Wave. You can adjust PWM Duty Cycle using potentiometer

published 8 years ago

silent36

8 years ago

This is comparator.

hurz

8 years ago

Right, comparators are the ones you have to use and not opamps. Anyway, its also unsymmetric, cuz of supply and taken positive reference of oscillator

pkdon124

8 years ago

Right.. I Will Try Improving Circuit😅😅😅

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.