analogue divider circuit needed

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mohd113

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Hello!

I have two voltages and I want to calculate the percentage between them. So, what I want is to divide one voltage by the other and then multiply the output by 100. However, I have been struggling to find an analogue circuit that could do that. So please help as I really want this circuit.

Thank you in advance.
 

log(V1/V2)=log(V1)-log(V2)=D
100*antilog(D)=100*(V1/V2)

search for logarithmic and anti logarithmic amplifier circuits or ICs.
 
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