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Help with choosing equipment to control halogen lamp

Nlis12

Oct 10, 2017
7
Joined
Oct 10, 2017
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7
I'm fairly new to electronics but I'd like to control a halogen lamp.
I plan on using an arduino uno for control and programming a PI loop on it.

I need an analog controlled power supply. Something that you would input a 0-5V(mA) signal to linearly control the output to a range of 0-24V (3-6A). Of course this power supply would also be powered from the wall.

Ideally the arduino would be outputting a 0-5V signal to control the power supply.

Any ideas of particular power supplies that may function as described?

Thanks!
 

Harald Kapp

Moderator
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Nov 17, 2011
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Welcome to EP, Nils.

The 'classic' way to control brightness of a lamp is not by varying the voltage in a linear fashion. Rather a technique called PWM is employed. This technique saves energy and is much more suitable to control by a microcontroller.

See this project.
 

Nlis12

Oct 10, 2017
7
Joined
Oct 10, 2017
Messages
7
Welcome to EP, Nils.

The 'classic' way to control brightness of a lamp is not by varying the voltage in a linear fashion. Rather a technique called PWM is employed. This technique saves energy and is much more suitable to control by a microcontroller.

See this project.
Thanks a bunch!!!
I don't know why I didn't think of this sooner as one of my other projects uses PWM to control resistive heaters, which are basically the same thing!
 
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