automated variac o0-220Vac

Thread Starter

missk

Joined Mar 3, 2011
1
Hi

I need to use an Atmega MCU to vary the voltage from 0-220Vac on the primary of a 220V//2000V transformer. I was looking into using a stepper motor to control a variac using a pulley/belt system. But considering that this is only a part of the bigger picture, it seems complex as I need to take into account torque considerations and such.Any chance that somebody may have a better or different idea?
 
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