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Question:

Adjustable AC power supply is the variable frequency power supply?

It is required to output 0-250V continuously adjustable AC voltage in the case of mains input fluctuation. The load is only one coil of 800 ohms, so the power consumption is very small. What are the recommended models? how's the price?

Answer:

Then you do not use the regulator directly on the OK? I give you a regulator of the power to see how much power you need, the price is not expensive.
May 9, 2017
Variable frequency power supply is rectified filter, and then inverter, get adjustable voltage.
May 9, 2017
Your output frequency is not 50HZ, with variable frequency power supply, if the output frequency is 50HZ, with the regulator can be, the general election 1KVA can, the price of hundreds of good,
May 9, 2017

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