MULTIPLIER_SIMULATING_VOLTAGE_CONTROLLED_RESISTOR

Published:2009/7/17 2:33:00 Author:Jessie | From:SeekIC

A two- or four-quadrant multiplier can be configured to simulate a resistor with a value that is the ratio of a fixed resistor and a control voltage. If the voltage-controlled current source is made to depend on input voltage Vin (i.e.by driving Y2), as well as being allowed to float on top of Vin(i.e. by connecting Y2 to Z), then the input of Y2 will simulate a resistor with the transfer function Rin= R(U/Ec). One node of the simulated resistor will always be referred to ground.



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