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Designing a true rms to dc converter without dedicated chips

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neelam29

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true rms to dc convertor

is there a way by which i can design a true rms to dc convertor without using dedicated chips for the same. like ad737 etc. i want to use simple op-amps etc. I'll would be really greatful to someone who can share some idea on this please.
 

Re: true rms to dc convertor

Should be possible by using multipliers, integrators etc. Also it could be measured like in some RMS meters by measuring the amount of heat produced and converting to a DC value.

Here is an old article **broken link removed**
 

Re: true rms to dc convertor

Here is an article from National Semiconductors on the subject. Hope it helps.
 

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