Current-mode Full-wave Rectifier Research Articles

Low-Voltage Current-Mode Full-Wave Rectifier Employing FVF-Biased MOS Translinear Loop

In this communication, a low-voltage complementary metal-oxide semiconductor (CMOS) current-mode full-wave rectifier (FWR), implemented from a flipped voltage follower-biased MOS translinear loop (FVF-MTL) is presented. The use of flipped voltage follower (FVF) minimizes the overall supply voltage demand by reducing the voltage headroom while maintaining the operation of the MOSFETs in strong inversion mode. The functioning of the proposed FWR circuit has been demonstrated through simulations carried out on Cadence Virtuoso software at [Formula: see text] CMOS technology at a supply voltage of 0.85[Formula: see text]V. The proposed FWR works over an input range of [Formula: see text] with a maximum linearity error of 3% in its transfer characteristics. The -3 dB bandwidth of the circuit has been found to be 54.95[Formula: see text]MHz. The minimum power and maximum power consumed by the circuit are 22.6[Formula: see text]nW and [Formula: see text], respectively. Post-layout simulations, Monte Carlo (MC), corner and temperature analyses have been carried out to estimate the performance and robustness of the proposed circuit.

Minimum component high frequency current mode rectifier

In this paper a current mode full wave rectifier circuit is proposed. The current mode rectifier circuit is implemented utilizing a floating current source (FCS) as an active element. The minimum component full wave rectifier utilizes only a single floating current source, two diodes and two grounded resistors. The extremely simple implementation enjoys high frequency operation and provides both inverting and non-inverting rectified outputs simultaneously. The rectifier system can work up to a frequency of 500MHz with acceptable distortion. The circuit exhibits low power consumption at ±0.75V supply voltage. The non-ideal and temperature analysis was also performed to study their impact on its performance. It was also shown that FCS can work as half wave rectifier as well. The performance of the circuit is evaluated using 0.18μm TSMC CMOS parameters using Hspice. Keywords : current-mode circuits; floating current source; high frequency; rectifiers

Low-voltage low-power high performance current mode fullwave rectifier

This paper presents a low-voltage low-power current mode full wave rectifier. The proposed configuration operates at maximum supply voltage of ±0.75V with quiescent power consumption of 2.1µW, and has current range of ±100µA. The output resistance and bandwidth of the designed rectifier are 0.89MΩ and 85.85MHz, respectively. Moreover, the operating frequency of the proposed rectifier is improved from 85MHz to 153.2MHz, by using the resistive compensation method of bandwidth extension. The proposed circuit is designed by using TSMC 0.18µm CMOS process and BSIM3 Level 49 device model at±0.75V. The circuits are simulated on Spectre simulator of Cadence to validate the analytical results obtained in the paper.

Component reduced current‐mode full‐wave rectifier circuits using single active component

This study presents the design of current-mode full-wave rectifier circuits using single active component. The first proposed circuit uses only one operational transconductance amplifier (OTA), two diodes and two resistors. Its current gain can be electronically controlled using the transconductance gain of the OTA. The second proposed circuit uses only one differential voltage current conveyor (DVCC), two diodes and three resistors. Using the complementary metal-oxide semiconductor structure of both OTA and DVCC, the behaviours of the proposed structures have been verified by HSPICE simulations. In addition, both of the proposed circuits are tested practically using commercially available components, such as AD844 and LM13700.

Realization of Electronically Controllable Current-Mode Full-wave Rectifier

ABSTRACTThe paper presents a completely new realization of full-wave rectifier/peak detector of input sinusoidal signals, employing four CCCIIs (second-generation controlled current conveyors), metal-oxide-semiconductor transistors, and single grounded capacitor, without any external resistors and components matching requirements. The circuit gives a DC output voltage that is the peak input voltage over a wide frequency range, with a very low ripple voltage and low harmonic distortion. The proposed circuits use a tunable all-pass filter as a 90° phase shifter of the square value of the processed input signal by means of bias current. The circuit provides operating frequency up to 20 MHz with increased linearity and precision in determining the peak value of the processed input voltage signal. The proposed circuit is very appropriate to further develop into integrated circuits. To verify the theoretical analysis, the circuit PSpice simulations and experimental results have also been included, showing good agreement with the theory.

A Single MO-CFTA Based Electronically/Temperature Insensitive Current-mode Half-wave and Full-wave Rectifiers

The article presents a current-mode full-wave rectifier employing multiple output current follower transconductance amplifier (MO-CFTA). The both circuits description is very simple, it merely comprises only single MO-CFTA, without external passive element. In addition, the magnitude and direction of output currents can be controlled via electronically method. Furthermore, the outputs are independent of the thermal voltage (V T ). The performances of the proposed circuits are investigated through PSpice. They show that the proposed circuits can function as a current-mode precision half-wave and full-wave rectifiers where input current range from 0uA to 514uA and -518uA to 518uA, respectively. They can be achieved at ±2V power supplies. The maximum power consumption is 3,01mW.

A full-wave rectifier using a current conveyor and current mirrors

The realization of a full-wave rectifier using a current conveyor and current mirrors is presented. The proposed rectifier is composed of a voltage-to-current converter, a current mode full-wave rectifier, and a current-to-voltage converter. A voltage input signal is changed into a current signal by the voltage-to-current converter. The current mode full-wave rectifier rectifies this current signal resulting in the current full-wave output signal that is converted into a voltage full-wave output signal by one grounded-resistor. The theory of operation is described. The simulation and experiment results are used to verify the theoretical prediction. Simulated results show that the proposed rectifier yields the minimum voltage rectification to 94µV. Experimental results demonstrate the performance of the proposed rectifier for 50mVpeak signal rectification.

Current-mode full-wave rectifier and vector summation circuit

A current-mode full-wave rectifier and current-mode vector summation circuit are presented. They are implemented by utilising the square-law characteristics of MOS transistors in saturation. A two-input vector summation circuit using the proposed full-wave rectifier has been fabricated in a 0.8 /spl mu/m CMOS process. The experimental and simulation results confirm the feasibility of the proposed circuits.