Pulse Width Modulation PWM controller. PWM is a technique in which the amount of current going in a circuit can be controlled by chopping the Direct current using a gate or transistor that is changing its duty cycle( on-off time) you should see this article flashing of LED using 555 IC. This article is about how you can control the speed of a DC motor using PWM motor controller
Component Required
- NE555
- IRfz44n
- IN4148
- 1K Resistor
- 100k Variable Resistor
- 10uf Capacitor
- 100nf Capacitor
- 12v Power
- Motor 6-12v
Circuit :
As shown in the above circuit the circuit contains a 555 timer, capacitor (10uf and 10nf), two potentiometers (10k & 20k), a MOSFET (IRFZ44N), a DC motor with diode protection ( 1N448 is used for high-frequency switching applications.