Minimal configuration precision full-wave rectifier using current and voltage conveyors

Abstract

Abstract:In this paper, new minimal configuration precision fullwave rectifier is presented. The structure employs one current and one voltage conveyor and only two diodes. It enables to process both low-voltage and low-current signals. Compared to the op amp based circuit, the proposed circuit is able to rectify signals up to 500 kHz and beyond with no or small distortion. Experimental measurements are performed that show the feasibility of the new precision full-wave rectifier. Keywords: analog processing circuits, current conveyor, instrumentation and measurements, precision full-wave rectifier, voltage conveyor Classification: Electronic instrumentation and control References[1] U. Tietze, C. Schenk, and E. Gramm, "Electronic Circuits-Handbook for Design and Application," Springer, 2008. [2] C. Toumazou and F. J. Lidgey, "Fast current-mode precision rectifier,"Electron. Wireless Wolrd, vol. 93, no. 1621Wolrd, vol. 93, no. , pp. 1115Wolrd, vol. 93, no. -1118Wolrd, vol. 93, no. , 1987 S. J. G. Gift and B. Maundy, "Versatile Precision Full-Wave Rectifiers for Intrumentation and Measurements," IEEE Trans. Instrum. Meas., vol. 56, no. 5, pp. 1703-1710, 2007 C. Toumazou, F. J. Lidgey, and S. Chattong, "High frequency current conveyor precision full-wave rectifier," Electron. Lett., vol. 30, no. 10, pp. 745-746, 1994. [5] A. A. Khan, M. A. El-Ela, and M. A. Al-Turaigi, "Current-mode precision rectification," Int. J. Electron., vol. 79, no. 6, pp. 853-859, 1995. [6] B. Wilson and V. Mannama, "Current-mode rectifier with improved precision," Electron. Lett., vol. 31, no. 4, pp. 247-248, 1995. [7] D. Stiurca, "Truly temperature independent current conveyor precision rectifier," Electron. Lett., vol. 31, no. 16, pp. 1302Lett., vol. 31, no. 16, pp. -1303Lett., vol. 31, no. 16, pp. , 1995 S. Minaei and E. Yuce, "A new full-wave rectifier employing single dual-X current conveyor," Int. J. Electron., vol. 95, no. 8, pp. 777-784, 2008. [9] S. J. G. Gift, "A High-performance full-wave rectifier circuit," Int. J. Electron., vol. 87, no. 8, pp. 925-930, 2000 Electron. Lett., vol. 17, no. 3, pp. 129-130, 1981. [19] T. Dostal and J. Pospisil, "Hybrid models of 3-port immittance convertors and current and voltage conveyors," Electron. Lett., vol. 18, no. 20, pp. 887-888, 1982. Microelectronics Journal, vol. 30, no. 2, pp. 157-160, 1999. [22] J. Koton, K. Vrba, and N. Herencsar, "Tuneable filter using voltage conveyors and current active elements," Int. J. Electron., vol. 96, no. 8, pp. 787-794, 2009. [23] N. Herencsar, J. Koton, and K. Vrba, "A new electronically tunable voltage-mode active-C phase shifter using UVC and OTA," IEICE Electron. Express, vol. 6, no. 17, pp. 1212Express, vol. 6, no. 17, pp. -1218Express, vol. 6, no. 17, pp. , 2009 IJCSNS, vol. 6, no. 3A, pp. 57-65, 2006. [27] J. Jerabek and K. Vrba, "SIMO type low-input and high-output impedance current-mode universal filter employing three universal current conveyors," AEU -Int.

A High Performance Full-Wave Rectifier Using a Single CCII-, Two Diodes and Two Resistor

“…Simple recti ers, consisting of only diodes and passive elements, operate inaccurately due to the threshold voltage of the diodes. Thus, active elements are employed for high-precision recti cation [2]. In general, recti er circuits can be achieved with diodes, active building blocks, such as second-generation current conveyors (CCIIs), Operational Ampli ers (OpAmps), etc.…”

Universal Voltage Conveyor and its Novel Dual-Output Fully-Cascadable VM APF Application

“…Among the special types of VCs is the plus -type differential current voltage conveyor (DCVC+) [16], the concept of which is equivalent to the current differencing buffered amplifier (CDBA) [17,18]. All of the VCs listed above can be realized using a single UVC by suitable interconnection or grounding of its ports [19][20][21][22]. Hence, the UVC is a "universal" active element which has one voltage input X, two difference current inputs (YP, YN), two mutually inverse voltage outputs (ZP, ZN), and one auxiliary terminal W, which determine the generation of the voltage conveyor.…”

Voltage mode electronically tunable full-wave rectifier

“…The circuits presented in [12,13] require no passive components and they operate in VM. Some current-mode (CM) full-wave rectifiers have been reported in the literature [14][15][16][17][18]. However, the reported rectifiers usually employ at least two active elements and/or four diodes, and additional sub circuits.…”

“…For example, in [15], the circuit uses two CCII+s and four diodes. The structure in [16] employs one current conveyor and one universal voltage conveyor (UVC) and two diodes. In [17], the proposed circuits employ at least two current and/or voltage conveyors as active elements and two diodes.…”

“…In the proposed circuit, rectification is not performed by diodes, which implies fewer ripples, compared with the known diode rectifier circuits [14][15][16][17][18]. It is also possible to perform low-voltage (below threshold level of the diode) rectification using the proposed circuit.…”