DC Motor Speed and LED Brightness Controller Circuit using PWM | 555 Timer Project #11

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A tutorial on how to make a PWM (Pulse Width Modulated) controller circuit for controlling Speed of DC Motor and brightness LED's and LED strips. This circuit controls the speed or brightness by pulsing the output ON and OFF several times per second.
Explanation of how this circuit works is also included in the video.

Components Required:
* 555 Timer IC
* Resistors: 1K, 100R
* 47K Potentiometer
* 100n Capacitor
* 10uF Capacitor (For smoothening power input)
* PN Diodes * 2
* N Channel Mosfet (I used IRFZ44N)
* Breadboard
* Few Breadboard Connectors
* (5-12)V Power Supply

Note: Mosfet is required only if you are using this circuit to control geared DC motors or LED Strips. It is not required for controlling single LED's.

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Man Your videos were really good, I don't understand why you stop uploading the videos🙂

sirius
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Hey buddy I love the way you teach electronics I have tried many channels but none of them is even close to you keep on brilliant job

behrahnama
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At last, someone talking sense in video❤️❤️

Dr_Khanz
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Elonics welcome back with new projects

prekshitkalra
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For the first fking time it worked . Big THANKS man.

keisuketakahashi
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Awesome video with best understanding as

malikamir
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Fantastic, i tried it and works awesome.

thebloody_blue
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Thank you so much! You have helped me a lot!

therockriders
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But whats the point of that 1k ohm resistance on the top?? Wont it slow down the charging cycle compared to the discharging cycel??

Yeaitts
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I wanted to increase and decrease brightness of display via a potentiometer. I am using a pwm ic

veeraraghavan
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Please mention the reference paper for your circuit diagram

Liya-hjrz
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The 1k resistor heats up when the motor spins slow, I've tried to use a 1 watt resistor but the motor doesn't spin at all. My input is a 12v

manoharmanu
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Thanks a lot, well explained. Can I use a 10k or a 100k pot

manoharmanu
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I tried this project, but it can't work

indudhan