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Vovanium
Vovanium
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It is possible using negative impedance convertor (http://en.wikipedia.org/wiki/Negative_impedance_converter).

Connect its referenceground point (left of R1 in wikipedia scheme) to midpoint of a pot (or use divider), and output to a wiper. If Rnic = -Rpot/2, then curve is nearly perfect.

Wpot

(Rf is -2*Rnic in this schema)

It is possible using negative impedance convertor (http://en.wikipedia.org/wiki/Negative_impedance_converter).

Connect its reference point (left of R1 in wikipedia scheme) to midpoint of a pot (or use divider), and output to wiper. If Rnic = -Rpot/2, then curve is nearly perfect.

It is possible using negative impedance convertor (http://en.wikipedia.org/wiki/Negative_impedance_converter).

Connect its ground point to midpoint of a pot, and output to a wiper. If Rnic = -Rpot/2, then curve is nearly perfect.

Wpot

(Rf is -2*Rnic in this schema)

Source Link
Vovanium
Vovanium
  • 1k
  • 9
  • 10

It is possible using negative impedance convertor (http://en.wikipedia.org/wiki/Negative_impedance_converter).

Connect its reference point (left of R1 in wikipedia scheme) to midpoint of a pot (or use divider), and output to wiper. If Rnic = -Rpot/2, then curve is nearly perfect.