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.
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