Speed control of DC motor using PWM with 555 IC
In this 555 timer project, I have shown how to make speed control of DC motor using PWM with a 555 timer IC circuit. You can control the speed of any DC motors like 775 or 555 motors with this 555 timer circuit.
This 555 timer circuit also can be use as the LED dimmer circuit
Circuit of PWM motor speed control
Motor Speed Controller circuit with 555
The circuit is very simple, I have used 555 IC and some basic electronics components to make this speed control of dc motor using PWM.
Here I have used TIP122 NPN power transistor, but you can also use IRFZ44N mosfet.
The collector current of the transistor or drain current of the MOSFET should be greater than the DC motor MAX current rating.
CB Layout for PWM 555 Timer circuit
Required Components:
555 Timer IC
TIP122 NPN transistor (You can also use MOSFET IRFZ44N)
1N4007 diodes (3no)
5-mm LED
1k 0.25-watt Resistors (3no)
10k 0.25-watt Resistors (1no)
100k Potentiometer (1no)
100nF Capacitor (C2) (1no)
10nF Capacitor (C1) (1no)
Connectors
Zero PCB or cardboard
Tutorial Video on PWM Speed Control
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Speed control of DC motor using PWM with 555 IC
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- Engineer Sep 18,2022
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