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Help with choosing equipment to control halogen lamp

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
Moderator
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.
 
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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