Ultimately trying to design an AC amplifier stage that has y=x/(a*(x-1)+1) for values between 0<x<1. A is a constant where 0<a<1 Order of operations should be as follows:
1. x-1 = add -1V DC offset to x with noninverting amplifier
2. a*(x-1) = use a voltage divider and buffer
3. a*(x-1)+1 = add +1V DC offset to x with noninverting amplifier
4. x-(a*(x-1)+1= no idea
This website's section on analog computing is great (http://www.allaboutcircuits.com/textbook/semiconductors/chpt-9/computational-circuits/) and I should be able to figure out steps 1-3, but as both x and (a*(x-1)+1) are different voltages and neither constant, I'm lost. Anyone point me in the right direction?
Attached images are from the online Desmos graphing calculator and show what happens when variable a is adjusted. Higher values of A create more nonlinearity from y=x.
1. x-1 = add -1V DC offset to x with noninverting amplifier
2. a*(x-1) = use a voltage divider and buffer
3. a*(x-1)+1 = add +1V DC offset to x with noninverting amplifier
4. x-(a*(x-1)+1= no idea
This website's section on analog computing is great (http://www.allaboutcircuits.com/textbook/semiconductors/chpt-9/computational-circuits/) and I should be able to figure out steps 1-3, but as both x and (a*(x-1)+1) are different voltages and neither constant, I'm lost. Anyone point me in the right direction?
Attached images are from the online Desmos graphing calculator and show what happens when variable a is adjusted. Higher values of A create more nonlinearity from y=x.
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