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Modified Current Differencing Unit and its Application for Electronically Reconfigurable Simple First-order Transfer FunctionSOTNER, R. , JERABEK, J. , HERENCSAR, N. , ZAK, T. , JAIKLA, W. , VRBA, K.
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Current differencing unit, controllable current gain, controllable intrinsic current input resistance, reconfigurability, multifunctional filter.
current(32), signal(15), mode(14), sotner(13), processing(11), filters(11), filter(11), circuits(11), jerabek(10), dostal(10)
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About this article
Date of Publication: 2015-02-28
Volume 15, Issue 1, Year 2015, On page(s): 3 - 10
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2015.01001
Web of Science Accession Number: 000352158600001
SCOPUS ID: 84924811819
Modified current differencing unit (MCDU) and its simple filtering application are introduced in this paper. Modification of the well-known current differencing unit consists in weighted difference of both input currents controlled by adjustable current gain, controllable intrinsic resistance of both current input terminals, and availability of additional voltage terminal(s). Definition of MCDU therefore requires four adjustable parameters (B1, B2, Rp, Rn). A presented active element offers and combines benefits of electronically controllable current conveyor of second generation and current differencing unit and allows synthesis of interesting adjustable applications, which are not available by classical approaches based on simple elements. MCDU brings variability of the transfer function into the structure. It provides several transfer types without necessity of input or output node change by simple electronic tuning. A presented structure represents so-called reconnection-less reconfigurable current-mode filter for realization of all-pass, inverting high-pass, low-pass and direct transfer response. Behavioral model of the MCDU was prepared and carefully tested in filtering application. Spice simulations and measurements confirmed theoretical assumptions.
|References|||||Cited By «-- Click to see who has cited this paper|
| D. Biolek, R. Senani, V. Biolkova, Z. Kolka, "Active elements for analog signal processing: classification, review and new proposals," Radioengineering, vol. 17, no. 4, pp. 15-32, 2008.
 J. W. Kerwin, L. P. Hulesman, W. R. Newcomb, "State variable synthesis for insensitive integrated circuit transfer functions," IEEE Journal of Solid State Circuits, vol. 2, no. 3, pp. 87-92, 1967.
[CrossRef] [SCOPUS Times Cited 237]
 R. Raut, M. N. S. Swamy, Modern Analog Filter Analysis and Design: A practical approach. Weinheim, Germany: Willey-VCH Verlag GmbH and Co. KGaA, 355 p., 2010.
 Y. Sun, J. K. Fidler, "Some design methods of OTA-C and CCII-RC filters," in Proc. of IEE Colloquium on Digital and Analogue Filters and Filtering, London, 1993, pp. 7/1-7/8.
 R. Nawrocky, U. Klein, "New OTA-capacitor realisation of a universal biquad," Electronics Letters, vol. 22, no. 15, pp. 50-51, 1986.
[CrossRef] [SCOPUS Times Cited 53]
 Y. Sun, "Second-order OTA-C filters derived from Nawrocky-Klein biquad," Electronics Letters, vol. 34, no. 15, pp. 1449-1450, 1998.
[CrossRef] [SCOPUS Times Cited 21]
 Y. Sun, J. K. Fidler, "Structure Generation of Current-Mode Two Integrator Dual output-OTA Grounded Capacitor Filters," IEEE Transaction on Circuits and Systems II: Analog and Digital Signal Processing, vol. 43, no. 9, pp. 659-663, 1996.
[CrossRef] [SCOPUS Times Cited 54]
 Y. Sun, J. K. Fidler, "Current-mode OTA-C realization of arbitrary filter characteristics," Electronics Letters, vol. 32, no. 13, pp. 1181-1182, 1996.
[CrossRef] [Web of Science Times Cited 38] [SCOPUS Times Cited 53]
 Y. Sun, J. K. Fidler, "Current-mode multiple-loop feedback filters using dual output OTAs and grounded capacitors," International Journal of Circuit Theory and Applications, vol. 25, no. 2, pp. 69-80, 1997.
 T. Dostal, "Filters with Multi-Loop Feedback Structure in Current Mode," Radioengineering, vol. 12, no. 3, pp. 6-11, 2003.
 R. Sotner, J. Petrzela, J. Slezak, "Current-Controlled Current-Mode Universal Biquad Employing Multi-Output Transconductors," Radioengineering, vol. 18, no. 3, s. 285-294, 2009.
 R. Sotner, B. Sevcik, L. Brancik, T. Dostal, "Multifunctional Adjustable Biquadratic Active RC Filters: Design Approach by Modification of Corresponding Signal Flow Graphs," Przeglad Elektrotechniczny, vol. 87, no. 2, pp. 225-229, 2011.
 R. Sotner, J. Jerabek, B. Sevcik, T. Dostal, K. Vrba, "Novel Solution of Notch/All- pass Filter with Special Electronic Adjusting of Attenuation in the Stop Band," Elektronika Ir Elektrotechnika, vol. 17, no. 7, p. 37-42, 2011.
 J. Petrzela, R. Sotner, "Systematic design procedure towards reconfigurable first-order filters," in Proc. 24th International Conference Radioelektronika 2014, Bratislava, 2014, pp. 237-240.
[CrossRef] [SCOPUS Times Cited 8]
 R. Sotner, J. Jerabek, N. Herencsar, R. Prokop, K. Vrba, T. Dostal, "Resistor-less First-Order Filter Design with Electronical Reconfiguration of its Transfer Function," in Proc. 24th International Conference Radioelektronika 2014, 2014, pp. 63-66.
[CrossRef] [SCOPUS Times Cited 11]
 R. Sotner, J. Jerabek, J. Petrzela, K. Vrba, T. Dostal, "Design of Fully Adjustable Solution of Band-Reject/All-Pass Filter Transfer Function Using Signal Flow Graph Approach," in Proc. 24th International Conference Radioelektronika 2014, 2014, pp. 67-70.
[CrossRef] [SCOPUS Times Cited 10]
 R. Sotner, N. Herencsar, J. Jerabek, R. Prokop, A. Kartci, T. Dostal, K. Vrba, "Z-Copy Controlled-Gain Voltage Differencing Current Conveyor: Advanced Possibilities in Direct Electronic Control of First- Order Filter," Elektronika Ir Elektrotechnika, vol. 20, no. 6, p. 77-83, 2014.
[CrossRef] [SCOPUS Times Cited 38]
 S. E. Sanchez, R. L. Geiger, L. H. Nevarez, "Generation of continuous-time two integrator loop OTA filter structures," IEEE Transactions on Circuits and Systems, vol. 35, no. 8, pp. 936-946, 1988.
[CrossRef] [Web of Science Times Cited 144] [SCOPUS Times Cited 185]
 W. Surakampontorn, W. Thitimajshima, "Integrable electronically tunable current conveyors," IEE Proceedings-G, vol. 135, no. 2, pp. 71-77, 1988.
 A. Fabre, N. Mimeche, "Class A/AB second-generation current conveyor with controlled current gain," Electronics Letters, vol. 30, no. 16, pp. 1267-1268, 1994.
[CrossRef] [Web of Science Times Cited 55] [SCOPUS Times Cited 54]
 A. Fabre, O. Saaid, F. Wiest, C. Boucheron, "High frequency applications based on a new current controlled conveyor," IEEE Trans. on Circuits and Systems - I, vol. 43, no. 2, pp. 82-91, 1996.
[CrossRef] [Web of Science Times Cited 376] [SCOPUS Times Cited 408]
 S. Minaei, O. K. Sayin, H. Kuntman, "A new CMOS electronically tunable current conveyor and its application to current-mode filters," IEEE Trans. on Circuits and Systems - I, vol. 53, no. 7, pp. 1448-1457, 2006.
[CrossRef] [SCOPUS Times Cited 157]
 M. Kumngern, S. Junnapiya, "A sinusoidal oscillator using translinear current conveyors," in Proc. Asia Pacific Conf. on Circuits and Systems APPCAS2010, Kuala Lumpur, 2010, pp. 740-743.
[CrossRef] [SCOPUS Times Cited 36]
 A. Marcellis, G. Ferri, N. C. Guerrini, G. Scotti, V. Stornelli, A. Trifiletti, "The VGC-CCII: a novel building block and its application to capacitance multiplication", Analog Integrated Circuits and Signal Processing, vol. 58, no. 1, pp. 55-59, 2009.
[CrossRef] [Web of Science Times Cited 42] [SCOPUS Times Cited 51]
 J. Vavra, J. Bajer, D. Biolek, V. Biolkova, "Current-mode Quadrature Oscillator Employing ZC-CDU Based All-Pass Filter," in Proc. IEEE Int. Conf. on Electronics Engineering and Signal Processing (EESP), 2011, Male, pp. 640-644.
 J. Vavra, D. Biolek, "OTA-based current differencing unit," in Proc. of int. conf. on Electronic Devices and Systems (EDS IMPAPS), Brno, 2008, pp. 7-12.
 W. Jaikla, M. Siripruchyanun, J. Bajer, D. Biolek, "A Simple Current-mode Quadrature Oscillator Using Single CDTA," Radioengineering, vol. 17, no. 4, pp. 33-40, 2008.
 W. Jaikla, P. Prommee, "Electronically Tunable Current-mode Multiphase Sinusoidal Oscillator Employing CCCDTA-based Allpass Filters with Only Grounded Passive Elements," Radioengineering, vol. 20, no. 3, pp. 594-599, 2011.
 W. Jaikla, A. Lahiri, "Resistor-less current-mode four-phase quadrature oscillator using CCCDTA and grounded capacitors," AEU-International Journal of Electronics and Communications, vol. 66, no. 3, pp. 214-218, 2012.
[CrossRef] [SCOPUS Times Cited 58]
 M. Siripruchyanun, W. Jaikla, "Electronically Controllable Current-Mode Universal Biquad Filter Using DO-CCCDTA," Circuits Systems and Signal Processing, vol. 27, no. 1, pp. 113-122, 2008.
[CrossRef] [Web of Science Times Cited 36] [SCOPUS Times Cited 43]
 R. Prokop, V. Musil, "Modular approach to design of modern circuit blocks for current signal processing and new device CCTA," in Proc. Conf. on Signal and Image Processing IASTED, Anaheim, 2005, pp. 494-499.
 M. Siripruchyanun, W. Jaikla, "Current controlled current conveyor transconductance amplifier (CCCCTA): a building block for analog signal processing", Electrical Engineering Springer, vol. 90, no. 6, pp. 443-453, 2008.
[CrossRef] [Web of Science Times Cited 87] [SCOPUS Times Cited 112]
 R. Sotner, J. Jerabek, N. Herencsar, T. Dostal, K. Vrba, "Additional Approach to the Conception of Current Follower and Amplifier with Controllable Features," in Proc. of the 34th Int. Conf. on Telecommunications and Signal Processing (TSP2011), Budapest, 2011, pp. 279-283.
[CrossRef] [SCOPUS Times Cited 9]
 R. Sotner, A. Kartci, J, Jerabek, N. Herencsar, T. Dostal, K. Vrba, "An Additional Approach to Model Current Followers and Amplifiers with Electronically Controllable Parameters from Commercially Available ICs," Measurement Science Review, vol. 12, no. 6, pp, 255-265, 2012.
[CrossRef] [SCOPUS Times Cited 25]
 J. Jerabek, R. Sotner, K. Vrba, "Tunable universal filter with current follower and transconductance amplifiers and study of parasitic influences," Journal of Electrical Engineering, vol. 62, no. 6, s. 317-326, 2011.
[CrossRef] [SCOPUS Times Cited 5]
 R. Sotner, N. Herencsar, J. Jerabek, R. Dvorak, A. Kartci, T. Dostal, K. Vrba, "New double current controlled CFA (DCC-CFA) based voltage-mode oscillator with independent electronic control of oscillation condition and frequency," Journal of Electrical Engineering, vol. 64, no. 2, s. 65-75, 2013.
[CrossRef] [SCOPUS Times Cited 24]
 R. Sotner, J. Jerabek, N. Herencsar, "Voltage differencing buffered/ inverted amplifiers and their applications for signal generation," Radioengineering, vol. 22, no. 2, pp. 490-504, 2013.
 R. Sotner, Z. Hrubos, N. Herensar, J. Jerabek, T. Dostal, "Precise electronically adjustable oscillator suitable for quadrature signal generation employing active elements with current and voltage gain control," Circuits Systems and Signal Processing, vol. 33, no. 1, pp. 1-35, 2014.
[CrossRef] [Web of Science Times Cited 21] [SCOPUS Times Cited 23]
 H. O. Elwan, A. M. Soliman, "CMOS differential current conveyors and applications for analog VLSI," Analog Integrated Circuits and Signal Processing, vol. 11, no. 1, pp. 35-45, 1996.
 A. Toker, "Current-mode allpass filters using current differencing buffered amplifier and a new high-Q bandpass filter configuration," IEEE Transactions on Circuits and Systems II, vol. 47, no. 9, pp. 949-954, 2000.
[CrossRef] [Web of Science Times Cited 129] [SCOPUS Times Cited 160]
 Intersil (Elantec). EL2082 CN Current-mode multiplier (datasheet), 1996, 14 p., [Online] Available: Temporary on-line reference link removed - see the PDF document
 Texas Instruments. OPA860 Wide-bandwidth, operational transconductance amplifier (OTA) and buffer (datasheet), 2008, 33 p., [Online] Available: Temporary on-line reference link removed - see the PDF document
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