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Question about circuit part of RMS detector

Hello again,

I found this National Semiconductor brief on True RMS Detector:

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In reference to the following circuit (highlighted in red):

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I wanted to know if these "eye method" assumptions are correct:

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??

Thanks!

Reply to
MRW
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For in>0 replace the battery(?) with an open cct. It is a precision half wave rectifier. D2 is the rectifier while D1 stops the amplifier saturating

Reply to
GPG

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