Title :
Realization of arbitrary transfer current characteristic using transconductors CDTA
Author :
Dostal, Tomas ; SMEJKAL, Vladimir ; Slezak, Josef
Author_Institution :
Dept. of Radio Electron., Brno Univ. of Technol., Brno
Abstract :
Active RC circuits with arbitrary transfer characteristics in current mode are presented in this paper. The given circuits are based on the multiple-loop feedback structure, namely on the follow-the-leader feedback structure with output summation. Modeling by signal flow graph technique is used to modify and transform the structure in current mode. Implementations by multi-output current-differencing-input transconductors (CDTA) are given. Verification and illustration are shown. The designed circuits have been simulated in PSpice and SNAP, resulting responses are confirming the theoretical assumptions.
Keywords :
RC circuits; active networks; circuit feedback; current-mode circuits; signal flow graphs; active RC circuits; current-differencing-input transconductors; follow-the-leader feedback structure; multioutput CDTA; multiple-loop feedback structure; output summation; signal flow graph technique; transfer current mode characteristic; Circuits; Flow graphs; Frequency; Impedance; Mirrors; Output feedback; Transconductors; Transfer functions; Virtual manufacturing; Voltage; Analogue circuits; active RC circuits; current mode; multiple-loop structures; transconductors;
Conference_Titel :
Radioelektronika, 2008 18th International Conference
Conference_Location :
Prague
Print_ISBN :
978-1-4244-2087-2
Electronic_ISBN :
978-1-4244-2088-9
DOI :
10.1109/RADIOELEK.2008.4542685
