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Sorry about my dimness, I neeed 1 to 10V depending on frequency

Hi,<p>Sorry to bother you guys again. What I really needed is to find a equipment to measure the capacitance change on my device and output a low voltage signal (DC). And then I can make a feedback control circiut.<p>Does anybody konw this kind of capacitance measurement?<p> Thanks a lot

Hello everyone<p>I am working on a circuit to convert a high frequency signal (800khz, 2V, AC) to a low voltage signal (10V, DC). Does anybody konw how to build it or where I can buy that kind of things?<p>
Thanks a lot