DC-10Khz frequency-voltage converter


Posted on Dec 29, 2012

The converter generates an output voltage which is linearly proportional to the input frequency waveform. Each zero crossing at the comparator`s input causes a precise amount of change to be dispensed into the op amp`s summing junction. This charge in turn flows through the feedback resistor generating voltage pulses at the output of the op amp


DC-10Khz frequency-voltage converter
Click here to download the full size of the above Circuit.

Capacitor (Cint) across Rint averages these pulses into a dc voltage which is linearly proportional to the input frequency.




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