Title :
Parasitic parameter estimation using multi-frequency parametric fault diagnosis
Author :
Kincl, Zdenek ; Kolka, Zdenek ; Biolkova, Viera
Author_Institution :
Dept. of Radio Electron., Brno Univ. of Technol., Brno, Czech Republic
Abstract :
The paper deals with the parasitic parameters estimation of real circuit components using the multi-frequency parametric fault diagnosis. An accurate transistor-level model of the circuit is simplified using the frequency-selective identification. The actual values of some parasitic parameters are determined upon the measurement of circuit frequency characteristics on several frequencies. A practical example of application is shown on a multifunction filter based on the modern function element ZC-CITA. The influences of individual parasitic parameters on the filter frequency characteristics are also discussed.
Keywords :
fault diagnosis; filters; frequency measurement; network parameters; operational amplifiers; parameter estimation; transistor circuits; Z-copy current inverter transconductance amplifier; circuit frequency characteristic measurement; filter frequency characteristics; frequency-selective identification; modern function element ZC-CITA; multifrequency parametric fault diagnosis; multifunction filter; parasitic parameter estimation; real circuit components; transistor-level model; Attenuation; Complexity theory; Fault diagnosis; Frequency measurement; Frequency response; Parameter estimation; Sensitivity; Fault diagnosis; ZC-CITA; analog filter; parasitic parameter estimation; universal biquad;
Conference_Titel :
Radioelektronika (RADIOELEKTRONIKA), 2012 22nd International Conference
Conference_Location :
Brno
Print_ISBN :
978-1-4673-0659-1
