Electronic circuit`s impedance measuring method for e.g. MOSFET, involves determining error curve for value corresponding to error value and calculating impedance to be estimated for different values of measuring frequency of error value

摘要

The method involves supplying an input of an electronic circuit with alternating voltage with a measuring frequency as test signal. An impedance of the circuit is determined from a reaction of the circuit. A parameter is outputted by a vector network analyzer with reference impedance. A value of the impedance of the circuit is determined depending on characteristics of the circuit. An error curve shown for the analyzer is determined for the value corresponding to an error value. The impedance to be estimated is calculated for different values of the measuring frequency of the error value.