The Experts below are selected from a list of 420 Experts worldwide ranked by ideXlab platform

Montree Kumngern - One of the best experts on this subject based on the ideXlab platform.

  • new versatile Precision Rectifier
    Iet Circuits Devices & Systems, 2014
    Co-Authors: Montree Kumngern
    Abstract:

    This study presents a versatile Precision Rectifier. The circuit yields a positive half-wave signal, a negative half-wave signal, a positive full-wave signal and a negative full-wave signal into one single structure. The personal computer simulation program with integrated circuit emphasis (PSPICE) simulation is performed to examine the performance of the new circuit. The experimental result is also confirmed workability of the proposed circuit.

  • CMOS Precision full-wave and half-wave Rectifier
    2011 IEEE International Conference on Computer Science and Automation Engineering, 2011
    Co-Authors: Athipong Virattiya, Boonying Knobnob, Montree Kumngern
    Abstract:

    This paper presents a new current-mode Precision Rectifier using CMOS technology. The system comprises a current comparator, current mirrors and diodes that can realize either a half-wave Rectifier or a full-wave Rectifier into a single system by appropriately adjusting the current gain of a current mirror. The proposed circuit offers low-voltage supply, low-power dissipation and wide bandwidth. The simulation results can be confirmed the operation and performance of the proposed Rectifier.

  • CMOS versatile Precision Rectifier using current conveyor
    The 8th Electrical Engineering Electronics Computer Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011, 2011
    Co-Authors: Usa Torteanchai, Kanok Sarasitthithum, Montree Kumngern
    Abstract:

    This paper presents a new versatile Precision Rectifier employing a current conveyor, current mirrors and diodes that performs as a positive half-wave, a negative half-wave, a positive full-wave and a negative full-wave rectifications into a single topology. The current-mode is employed for providing the high-Precision capability of the circuit. The proposed configuration is very suitable for integrated circuit implementation in CMOS technology. The circuit exhibits a precise Rectifier and good temperature stability. PSPICE simulation results using 0.5µm CMOS process demonstrate the performance of the proposed Rectifier.

  • Current conveyor-based versatile Precision Rectifier
    WSEAS Transactions on Circuits and Systems archive, 2008
    Co-Authors: Montree Kumngern, Kobchai Dejhan
    Abstract:

    A versatile Precision Rectifier based on a current conveyor and current mirrors is presented. The proposed circuit performs positive half-wave, negative half-wave, positive full-wave, and negative full-wave rectification into a single circuit. The current-mode technique has been employed to provide the high-Precision capability of the circuit. The circuit configuration is very suitable for integrated circuit implementation both in bipolar and CMOS technologies and it exhibits a precise Rectifier and good temperature stability. Simulation results using the PSPICE program based on 0.5µm CMOS parameter through MIETEC demonstrate the performance of the proposed Rectifier. Experimental results are provided to confirm the theory.

  • Wide-Band CMOS Precision Rectifier Circuit
    2008 International Symposium on Communications and Information Technologies, 2008
    Co-Authors: Montree Kumngern, Somkiat Lerkvaranyu, Kobchai Dejhan
    Abstract:

    A wide-band Precision CMOS Rectifier, which is very suitable for integrated circuit implementation, is presented. The proposed circuit consists of a voltage-to-current converter, two Precision Rectifiers and four current-to-voltage converters that performs positive half-wave, negative half-wave, positive full-wave and a negative full-wave rectifications into a single circuit. The Precision current-mode Rectifier with operating in class-AB is employed to provide the high-frequency capability of the circuit. The circuit exhibits a very versatility, high operating frequency and good temperature stability. The proposed configuration is very suitable for integrated circuit implementation both CMOS and bipolar technologies. The simulation results in CMOS technology demonstrate the performance of the proposed circuit.

M. Siripruchyanun - One of the best experts on this subject based on the ideXlab platform.

  • A Low-voltage Wide-band Current-mode Automatic Gain Control (AGC)
    2015
    Co-Authors: Kriangkrai Sooksood, M. Siripruchyanun
    Abstract:

    In this paper, a current-mode automatic gain control (AGC) is presented. Due to operation in current-mode, the proposed circuit provides a wide frequency response, a low supply voltage, low power consumption and electronic controllability. Thus, it is very suitable for use in portable and battery-powered equipment such as a hearing aid instrument and a wireless radio device. The proposed AGC consists of current controlled exponential amplifier, current-mode Precision Rectifier, current-mode low pass filter and current-mode integrator, which can be fabricated into Integrated Circuit (IC) form. The performances of the proposed circuit are explored through HSPICE simulation program using BSIM3v3 model from MOSIS, they demonstrate good agreement to the theoretical anticipation. The proposed circuit works at ±1.5 V supply voltage, power consumption is merely 712 µW

  • 9 A Current-mode CMOS Frequency-insensitive Quadrature Phase Shifter
    2015
    Co-Authors: Kriangkrai Sooksood, M. Siripruchyanun
    Abstract:

    In this paper, a quadrature phase shifter is presented. Due to operation in current-mode, the proposed circuit provides a wide frequency response, a low supply voltage, low power consumption and electronic controllability. Thus, it is very suitable for use in portable and battery-powered equipment such as hearing aid instrument and wireless radio device. The proposed quadrature phase shifter consists of differentiator, current-mode Precision Rectifier, current-mode low pass filter and current controlled amplifier, which can be fabricated into Integrated Circuit (IC) form. The feature of the proposed circuit is that it can provide the quadrature signals with frequency-insensitivity. The performances of the proposed circuit are explored through HSPICE simulation program using BSIM3V3 model from AMIS, they demonstrate good agreement to the theoretical anticipation. The proposed circuit works at ±1V supply voltages, power consumption is merely 16.8µW

  • A Low-Voltage, Low-Power Current-mode Automatic Gain Control (AGC) for Battery-Powered Equipment
    2014
    Co-Authors: M. Siripruchyanun
    Abstract:

    In this paper, a current-mode Automatic Gain control (AGC) is presented. Due to operation in current-mode, the proposed circuit provides a wide frequency response, a low supply voltage, low power consumption and electronic controllability. Thus, it is very suitable for use in portable and battery-powered equipment such as hearing aid instrument and wireless radio device. The proposed AGC consists of current controlled exponential amplifier, current-mode Precision Rectifier, current-mode low pass filter and current-mode integrator. The performances of the proposed circuit are explored through HSPICE simulation program using BSIM3V3 model from MOSIS, they demonstrate good agreement to the theoretical anticipation. The proposed circuit works at ±1.5 V supply voltage, power consumption is merely 7.12mW. 1

Kobchai Dejhan - One of the best experts on this subject based on the ideXlab platform.

  • Current conveyor-based versatile Precision Rectifier
    WSEAS Transactions on Circuits and Systems archive, 2008
    Co-Authors: Montree Kumngern, Kobchai Dejhan
    Abstract:

    A versatile Precision Rectifier based on a current conveyor and current mirrors is presented. The proposed circuit performs positive half-wave, negative half-wave, positive full-wave, and negative full-wave rectification into a single circuit. The current-mode technique has been employed to provide the high-Precision capability of the circuit. The circuit configuration is very suitable for integrated circuit implementation both in bipolar and CMOS technologies and it exhibits a precise Rectifier and good temperature stability. Simulation results using the PSPICE program based on 0.5µm CMOS parameter through MIETEC demonstrate the performance of the proposed Rectifier. Experimental results are provided to confirm the theory.

  • Wide-Band CMOS Precision Rectifier Circuit
    2008 International Symposium on Communications and Information Technologies, 2008
    Co-Authors: Montree Kumngern, Somkiat Lerkvaranyu, Kobchai Dejhan
    Abstract:

    A wide-band Precision CMOS Rectifier, which is very suitable for integrated circuit implementation, is presented. The proposed circuit consists of a voltage-to-current converter, two Precision Rectifiers and four current-to-voltage converters that performs positive half-wave, negative half-wave, positive full-wave and a negative full-wave rectifications into a single circuit. The Precision current-mode Rectifier with operating in class-AB is employed to provide the high-frequency capability of the circuit. The circuit exhibits a very versatility, high operating frequency and good temperature stability. The proposed configuration is very suitable for integrated circuit implementation both CMOS and bipolar technologies. The simulation results in CMOS technology demonstrate the performance of the proposed circuit.

Sudhanshu Maheshwari - One of the best experts on this subject based on the ideXlab platform.

  • Precision Rectifier circuit using current mode approach and grounded resistors
    Australian journal of electrical and electronics engineering, 2021
    Co-Authors: Sudhanshu Maheshwari
    Abstract:

    This article is devoted to a new circuit proposal for Precision rectification, which is designed using current feedback operational amplifiers. The new proposed circuit operation is clearly discuss...

  • voltage mode full wave Precision Rectifier and an extended application as ask bpsk circuit using a single exccii
    Aeu-international Journal of Electronics and Communications, 2018
    Co-Authors: Sudhanshu Maheshwari
    Abstract:

    Abstract A novel full-wave Precision Rectifier circuit employing a single EXCCII, a MOS switch and one resistor is proposed. The proposed voltage-mode full-wave Precision Rectifier is simple and operates with a supply voltage of ±1.25 V. The circuit provides rectification for a wide range signal amplitudes of −150 mV to 150 mV. The proposed circuit is easily adapted as an extended application in ASK and BPSK generation. Non-idealities of building blocks and parasitic effects are analyzed, Simulations using 0.25 µm parameters are given and comparisons drawn with most recent works, to support the new proposed circuit.

  • High Performance Precision Rectifier for Analog Signal Processing
    International Journal of Computer Applications, 2012
    Co-Authors: Sudhanshu Maheshwari, Mohd. Samar Ansari, Parveen Beg
    Abstract:

    This paper presents two improved Precision Rectifiers, each employing two active elements and two MOS transistors. The new circuits are advantageous when compared to the most recent work [5] by enjoying high input impedance and resistor-less realization, which makes them ideal for CMOS implementation. High Precision and wide frequency operation of the circuits is shown along with parasitic insensitivity. The dual-X current conveyor based novel circuits have useful analog signal processing applications and are verified through extensive computer simulations. General Terms Analog Signal Processing, Current Conveyors.

  • Biphase amplifier based Precision Rectifiers using current conveyors
    2012 IEEE International Conference on Signal Processing Computing and Control, 2012
    Co-Authors: Parveen Beg, Sudhanshu Maheshwari, Mohd. Samar Ansari, Iqbal A. Khan
    Abstract:

    A novel and simple circuit for Precision Rectifier using second-generation current conveyor (CCII) is presented in this article. The circuit basically uses a CCII-based voltage mode bi-phase amplifier, which has been used as full-wave and half-wave Rectifiers. To switch the bi-phase amplifier from non-inverting to inverting mode, a MOSFET and a CCII-based comparator has been used. The circuit exhibits Precision rectification over a wide range of operation and can also be implemented using commercially available ICs such as the AD844. The proposed circuits have been simulated using CMOS implementation of current conveyor with effective results.

  • CURRENT CONTROLLED Precision Rectifier CIRCUITS
    Journal of Circuits Systems and Computers, 2007
    Co-Authors: Sudhanshu Maheshwari
    Abstract:

    A novel full-wave Precision Rectifier employing a single current controlled conveyor (CCCII) with three outputs, two complementary MOS transistors, and a resistor is proposed. The circuit enjoys high input impedance, current controlled output, good zero-crossing performance, and linearity. Another current controlled Precision Rectifier with no external resistor is also derived from the proposed circuit. RSPICE simulations using real device parameters are included to verify the proposed circuits.

Nicu Bizon - One of the best experts on this subject based on the ideXlab platform.

  • electronically tunable full wave Precision Rectifier using dvcctas
    Electronics, 2021
    Co-Authors: Niranjan Raj, Rajeev Kumar Ranjan, Bindu Priyadarshini, Nicu Bizon
    Abstract:

    This work presents a voltage mode scheme of a full-wave Precision Rectifier circuit using an analog building block differential voltage current conveyor transconductance amplifier (DVCCTA) including five NMOS transistors. The proposed design is essentially suited for low voltage and high-frequency input signals. The operation of the proposed Rectifier design depends upon the region of operation of NMOS transistors. The output waveform of the presented Rectifier design can be made electronically tunable by controlling the bias voltage. The functional correctness and verification of the presented design are performed using 0.25-µm TSMC technology under the supply voltage of ±1.5 V. The absence of a resistor leads to a minimal parasitic effect. To obtain further insight on the robustness of the circuit, a Monte Carlo simulation and corner analysis are also presented. The circuit is verified experimentally by incorporating a breadboard model with the help of commercially available ICs CA3080 (operational transconductance amplifier) and AD844AN (current feedback operational amplifier) and offers remarkable compliance with both theoretical and simulation outcomes. The presented design has been laid out on Cadence virtuoso, which consumes a chip area of 9044 µm2.