Title :
Lossless inductor using current feedback amplifier
Author :
Bandyopadhyay, T.K. ; Nagaria, R.K. ; Sanyal, S.K. ; Nandi, R.
Author_Institution :
Dept. of Electron. & Telecommun. Eng., Jadavpur Univ., Kolkata, India
Abstract :
A lossless grounded inductor simulation scheme using the current feedback amplifier (CFA) device is proposed. The circuit configuration is a minimal $RC realisation that exhibits extremely low active sensitivity. The effects of the port tracking errors (εt,v,t) on the circuit parameters have been examined, and, subsequently compensation design equations have been derived. Tuning of this inductor by a capacitor across the driving point port yields a LC bandpass filter characteristics and self-oscillatory sinusoidal response (Q → ∞) which had been experimentally verified by hardware design and PSPICE macromodel simulation.
Keywords :
RC circuits; band-pass filters; compensation; feedback amplifiers; inductors; semiconductor device models; LC bandpass filters; RC realization; compensation design equations; current feedback amplifier; lossless grounded inductors; port tracking errors; self-oscillatory sinusoidal response; Active filters; Active inductors; Bandwidth; Circuit simulation; Equations; Feedback amplifiers; Hardware; Network synthesis; Operational amplifiers; Voltage-controlled oscillators;
Conference_Titel :
Signals, Circuits and Systems, 2005. ISSCS 2005. International Symposium on
Print_ISBN :
0-7803-9029-6
DOI :
10.1109/ISSCS.2005.1511334