What device would I use to generate a PWM signal to control a motor from 0-12 volts? I just want to use a potentiometer to control the voltage is there a simple
![operational amplifier - I need help sing a 555, op-amp integrator, and comparator to generate a voltage controlled PWM signal - Electrical Engineering Stack Exchange operational amplifier - I need help sing a 555, op-amp integrator, and comparator to generate a voltage controlled PWM signal - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/3IULU.png)
operational amplifier - I need help sing a 555, op-amp integrator, and comparator to generate a voltage controlled PWM signal - Electrical Engineering Stack Exchange
![A current-/voltage-controlled four-slope operation square-/triangular-wave generator and a dual-mode pulse width modulation signal generator employing current-feedback operational amplifiers - ScienceDirect A current-/voltage-controlled four-slope operation square-/triangular-wave generator and a dual-mode pulse width modulation signal generator employing current-feedback operational amplifiers - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0026269214000901-fx1.jpg)
A current-/voltage-controlled four-slope operation square-/triangular-wave generator and a dual-mode pulse width modulation signal generator employing current-feedback operational amplifiers - ScienceDirect
![Signal Chain Basics #76: Design a Low-Cost PWM Circuit for Single IGBT-Drive Applications - Planet Analog Signal Chain Basics #76: Design a Low-Cost PWM Circuit for Single IGBT-Drive Applications - Planet Analog](https://www.planetanalog.com/wp-content/uploads/images-common-planetanalog-2013-04-559556-170738-677216.jpg)