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PSpice - Modeling Voltage Controlled Resistors and Capacitors in PSpice

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The ANL_MISC.LIB library file contains subcircuit models for voltage-controlled reactances and admittances. These can be used to make voltage-controlled resistors and capacitors. In this application..

The ANL_MISC.LIB library file contains subcircuit models for voltage-controlled reactances and admittances. These can be used to make voltage-controlled resistors and capacitors. In this application note, we will illustrate the usage of voltage-controlled impedance for controlling Q of a series RLC filter network and changing the frequency of a Wien bridge oscillator.

Note: This modeling technique is not applicable to capacitances whose values change slowly. It applies to cases where the capacitance changes very quickly between constant values.

To learn more, read or download the Application Note above. Visit our website for a free trial and explore all the simulation capabilities of PSpice.