i have to covert the rms voltage to dc voltge .
to convert that please suggest ic or any prefared design.
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i have to covert the rms voltage to dc voltge .
to convert that please suggest ic or any prefared design.
Hello,
TI offers many controllers that can be used for AC to DC power conversion. TI may already have a design that meets your needs.
Please go to the following link and enter you input voltage range. Check of AC and your output voltage and output current requirements to see if their is a controller and reference design that meets your needs.

If you do not find a reference design that meets your needs. Please send us your power requirements and we will recommend a solution for your specific needs.
Regards,