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[HELP]Led dimmer

Nikola

Oct 28, 2022
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Hello guys,
I'm a high school studnet from Croatia. I need to make some project for end of my studie.
I choose led dimmer for my end project but I can't finde proper shematic on internet.
I would like to use potentiometer and I would use it for my garage LED lights.

Do some of you guy have some sehmatic?
 

Harald Kapp

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LEDs are usually dimmed using pulse width modulation (PWM). Lots of circuits available on the internet.

I'll move this thread to the homework section where it belongs.
 

danadak

Feb 19, 2021
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Some questions :

1) Do you know how to code in C or using block languages like scratch or mBlock ?

2) Familiar with using Arduino ?

3) Your garage LED lights a dimmable string or just a 110 VAC plugin string ?


Regards, Dana.
 

Nikola

Oct 28, 2022
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1. I did’t work in any of this programs
2.Lights are not the problem because I will by them after I build my project.
 

bertus

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Nov 8, 2019
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Hello,

As said, lookup a PWM circuit.
Those can be mada witha NE555 or other smitt-trigger chips.
What will be the working voltage?

Bertus
 

bertus

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Hello,

12 Volts leds can be dimmed using PWM.
220 Volts AC led lamps can (most times) be dimmed with a phase adjusting dimmer.
The 220 Volts leds must be suitable for dimming.

Bertus
 

Harald Kapp

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Do you have any shematic of 220 AC LED lampa dimmer?
The problem is not the 220 V dimmer. The problem is that the driver circuits of many 220 V LED lamps are not dimmable. If they are, the LED lamp is explicitly marked as dimmable. But then again using a 220 V dimmer and a dimmable 220 V LED lamp thwarts the purpose of your initial question and assignment, because such a setup would not be called a "LED dimmer".

For your own safety, stay with 12 V. A Google search for "PWM LED Dimmer Circuit" will turn up heaps of suitable safe circuits.
 
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