Voltage mode electronically tunable full-wave rectifier

Abstract

The paper presents a new realization of bipolar full-wave rectifier of input sinusoidal signals, employing one MO-CCCII (multiple output current controlled current conveyor), a zero-crossing detector (ZCD), and one resistor connected to fixed potential. The circuit provides the operating frequency up to 10 MHz with increased linearity and precision in processing of input voltage signal, with a very low harmonic distortion. The errors related to the signal processing and errors bound were investigated and provided in the paper. The PSpice simulations are depicted and agree well with the theoretical anticipation. The maximum power consumption of the converter is approximately 2.83 mW, at ±1.2 V supply voltages.

Electronically Tunable Full Wave Precision Rectifier Using DVCCTAs

“…The tunability features of precision rectifier design are not available in [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. In [18], Voltage mode electronically tunable full-wave rectifier circuit is presented using a multi-output current controlled conveyor (MO-CCCII) and capable of tunability but neither offers a high input impedance nor a low output impedance since the circuit is designed using BJT techniques and uses one zero-crossing detector. High input impedance and low output impedance can be achieved in [8,9,[15][16][17], as mentioned in Section 8, while other existing rectifier designs do not provide both features.…”

A single CCII‐based high‐precision voltage‐mode full‐wave rectifier suitable for low‐level signals

“…Diode only full‐wave rectifiers (FWRs) have limitations due to the threshold voltages of the diodes. As a result, active device‐based voltage‐mode (VM) FWRs given in literature 1–25 have been developed in the literature. These active elements are second‐generation current conveyor (CCII), 1–10,13–15 voltage conveyor (VC), 11,19 dual‐X CCII (DX‐CCII), 12,13 operational amplifier (OA), 14–16 current controlled CCII (CCCII), 17,18 current feedback operational amplifier (CFOA), 20 differential voltage current conveyor (DVCC), 21 operational transconductance amplifier (OTA), 22,23 current differencing transconductance amplifier (CDTA), 24 and differential difference current conveyor (DDCC) 25 .…”

“…As a result, active device‐based voltage‐mode (VM) FWRs given in literature 1–25 have been developed in the literature. These active elements are second‐generation current conveyor (CCII), 1–10,13–15 voltage conveyor (VC), 11,19 dual‐X CCII (DX‐CCII), 12,13 operational amplifier (OA), 14–16 current controlled CCII (CCCII), 17,18 current feedback operational amplifier (CFOA), 20 differential voltage current conveyor (DVCC), 21 operational transconductance amplifier (OTA), 22,23 current differencing transconductance amplifier (CDTA), 24 and differential difference current conveyor (DDCC) 25 . In addition to these active devices, some of the other components such as resistors, diodes, bipolar junction transistors (BJTs), and MOS transistors are employed to realize VM FWRs, because, for low‐level signals, FWRs with high precision are significant building blocks in instrumentation, measurement, and control such as AC voltmeter, AC ammeter, AC wattmeter, RF demodulators, piecewise linear function generators, various nonlinear analog signal‐processors, signal‐polarity detectors, averaging circuits, peak value detectors, root mean square to DC converters, etc.…”

“…The abovementioned VM FWRs 1–25 suffer from the following drawbacks: (i) The FWR topologies 3,6,9,11,14–16,19,24 do not comprise high input impedance. (ii) Resistors of several FWR circuits 3,7,11,14–16,21,24 suffer from matching conditions.…”

“…(x) The circuits [14][15][16] employ OAs; thus, they suffer from slew-rate restrictions. (xi) The FWRs introduced 1,2,4,10,17,22 use BJTs; accordingly, they are temperature dependent.…”