I need to use an Arduino to control a digital potentiometer to regulate an high voltage AC circuit. Is there a digital potentiometer which can controll an up to 250W AC circuit?
Are you sure that's what you need? What exactly, is this "250W AC circuit" that you want to control? There may be options better suited to doing this than a digital potentiometer.
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Can you give me an example, please?
Didn't answer my question.
First define what a high voltage AC circuit is and at what voltage and current. For some 24V is high for others 10KV is high voltage what do you say. Also we are not a free design house but are more than willing to help you with your design. Post your schematic if you have one. Can this be phase control? What is the load? What is the environment? etc. Help us help you as we cannot see anything on your end. I am not the only one with the problem, respond to the others as they cannot see either.
That's a 99.999% NO.
Digital pots are for small signals,
and most of them can only handle voltages that are less than the Arduino that controls them.
Tell us exactly what you want to control.
You might need a triac circuit to control 250watt mains AC.
Leo..
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