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how to simulate the coefficient of a multiplier

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liucheng311

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hi guys
i want to design a multiplier with the function of VOUT=K*(Vcomp-2)*Vin,in which Vcomp and Vin are two terminals of the multiplier.
could anyone help me with the simulation of K when Vcomp equals to 3 and Vin equals to 1?
thx
 
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If you don't show a schematic, how can someone help to simulated it?
 
Are you trying to achieve the multiplication with a gibbs cell or a log-amp based multiplier ?. Do you need multi quadrant operation or just for positive values of voltages ?
 
thx ,it is just for positive voltage.
and i want to know the method of simulation,such as how to add small signal,etc.i know how to simulate a amplifier,but i am confused when there are two input signals in a multiplier
 

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