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Author Topic: analog multiplier using log and antilog amplifier issue  (Read 2336 times)

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Offline rockerTopic starter

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analog multiplier using log and antilog amplifier issue
« on: December 01, 2017, 06:56:38 pm »
I'm trying to build an analog multiplier that takes any two voltages and produces the product for them




This is the basic layout of the circuit:


can this layout do what I need? I know there is a problem with the last stage, the last opamp should give me gain: k2, to get V1 * V2 but I don't know that the value of k2?
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