Ultimately trying to design an AC amplifier stage that has y=x/(a*(x1)+1) for values between 0<x<1. A is a constant where 0<a<1 Order of operations should be as follows:
1. x1 = add 1V DC offset to x with noninverting amplifier
2. a*(x1) = use a voltage divider and buffer
3. a*(x1)+1 = add +1V DC offset to x with noninverting amplifier
4. x(a*(x1)+1= no idea
This website's section on analog computing is great (http://www.allaboutcircuits.com/textbook/semiconductors/chpt9/computationalcircuits/) and I should be able to figure out steps 13, but as both x and (a*(x1)+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. x1 = add 1V DC offset to x with noninverting amplifier
2. a*(x1) = use a voltage divider and buffer
3. a*(x1)+1 = add +1V DC offset to x with noninverting amplifier
4. x(a*(x1)+1= no idea
This website's section on analog computing is great (http://www.allaboutcircuits.com/textbook/semiconductors/chpt9/computationalcircuits/) and I should be able to figure out steps 13, but as both x and (a*(x1)+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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