Hello all,
I am trying to use a 220V DC motor to perform multiple actions that require different rotational speeds, so I need a voltage variator.
I was looking for something to work with Arduino, but I didn't find anything that could handle this voltages and intensities.
Do you have any recommendations?

Thanks.

 

What is the size of the motor?
A logic gate Mosfet may drive it in PWM. mode.

 

The motor is the following:

https://www.alibaba.com/product-det...0.7724857.normal_offer.d_image.29ab4676zLIwkv

 

That motor is only 800w, there is a large selection of logic gate Mosfets that would be capable of driving it in PWM.

 

What do You have for a Power-Supply ?
Line-Isolation ?
How much space ? (microscopic SMD, Aluminum-Box ?)
Does the Motor need to be reversible ?
Will You require the full ~800W / 240-Volts / ~3-Amps ?
.
.
.

 

Here is a good bloc from Tahmid for bi-directional PWM control at high voltage.
http://tahmidmc.blogspot.com/2013/01/using-high-low-side-driver-ir2110-with.html