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Journal articles on the topic 'Input Offset Current'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Zhang, Shuo, Zong Min Wang, and Liang Zhou. "An Improved Low-Offset and Low-Power Design of Comparator for Flash ADC." Applied Mechanics and Materials 598 (July 2014): 365–70. http://dx.doi.org/10.4028/www.scientific.net/amm.598.365.

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This paper presents an offset-cancellation and low power cascaded comparator with new technique for flash Analog-to-Digital Converters. The improved structure cancels both input and output offset voltage by the feedback from outputs to common inputs. The total current consumption is reduced sharply for a clock circle with 1:2 dutyratio. The improved comparator is implemented in 0.35μm CMOS process. The Spectre simulation results show that the offset voltage of the improved structure is 3.14996mV with σ = 2.0347mV,and total current consumption is 17.59μA, while the offset voltage and total curr

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2

Laababid, Younes, Karim El Khadiri, and Ahmed Tahiri. "Biopotential multi-path current feedback instrumentation amplifier with automatic offset cancellation loop for resistive bridge microsensors." International Journal of Power Electronics and Drive Systems (IJPEDS) 14, no. 4 (2023): 2107. http://dx.doi.org/10.11591/ijpeds.v14.i4.pp2107-2118.

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<span lang="EN-US">This study introduces a refined current feedback instrumentation amplifier (CFIA) specifically designed for amplifying biopotential signals that originate from resistive-bridge sensors. The proposed architecture uniquely incorporates a multipath chopper-stabilized CFIA which has been developed to minimize the effects of bridge offsets, while maintaining low power usage, high input impedance, and reduced noise characteristics. The engineering blueprint employs a ripple reduction loop (RRL) to mitigate output ripple caused by chopper up-modulation. To speed up offset can

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3

Younes, Laababid, El Khadiri Karim, and Tahiri Ahmed. "Biopotential multi-path current feedback instrumentation amplifier with automatic offset cancellation loop for resistive bridge microsensors." Biopotential multi-path current feedback instrumentation amplifier with automatic offset cancellation loop for resistive bridge microsensors 14, no. 4 (2023): 2107–18. https://doi.org/10.11591/ijpeds.v14.i4.pp2107-2118.

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This study introduces a refined current feedback instrumentation amplifier (CFIA) specifically designed for amplifying biopotential signals that originate from resistive-bridge sensors. The proposed architecture uniquely incorporates a multipath chopper-stabilized CFIA which has been developed to minimize the effects of bridge offsets, while maintaining low power usage, high input impedance, and reduced noise characteristics. The engineering blueprint employs a ripple reduction loop (RRL) to mitigate output ripple caused by chopper up-modulation. To speed up offset cancellation and to limit th

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4

Bakerenkov, A. S., V. S. Pershenkov, A. V. Solomatin, V. V. Belyakov, and V. V. Shurenkov. "Radiation Degradation Modeling of Bipolar Operational Amplifier Input Offset Voltage in LTSpice IV." Applied Mechanics and Materials 565 (June 2014): 138–41. http://dx.doi.org/10.4028/www.scientific.net/amm.565.138.

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Integrated circuits are used in electronic equipment of spaceships. Therefore, they are impacted by ionizing radiation during space mission. It leads to electronic equipment failures. At present operational amplifiers are base elements of analog electronic devices. Radiation impact leads to degradation of operational amplifiers input stages. Input bias current increasing and input offset voltage drifts are the results of ionizing radiation expose of operational amplifiers. Therefore, space application electronic equipment fails after accumulation of limit dose. It isn’t difficult to estimate r

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Siriphuchyanun, Montree, Phamorn Silapan, and Winai Jaikla. "Low-offset BiCMOS Current Controlled Current Differencing Buffered Amplifier (CC-CDBA) and Applications." ECTI Transactions on Electrical Engineering, Electronics, and Communications 6, no. 1 (2007): 81–90. http://dx.doi.org/10.37936/ecti-eec.200861.171766.

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This article presents the design for a basic current mode building block for analog signal processing, called Current Controlled Current Differencing Buffered Amplifier (CC-CDBA). Its parasitic resistances at two current input ports can be controlled by an input bias current. The output current and voltage offset are quite low. The proposed element was realized in a BiCMOS technology and the voltage follower in the element is modified to achieve high performance properties. Its performances are examined through PSPICE simulations. In addition,examples as a current-mode multiplier/divider and c

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6

He, Congrong, and Chenjian Wu. "Design of chopper operational amplifier for leakage current protector chip." Journal of Physics: Conference Series 2383, no. 1 (2022): 012011. http://dx.doi.org/10.1088/1742-6596/2383/1/012011.

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Due to the low frequency and small amplitude of the input signal of the leakage current protection chip, an operational amplifier with low offset and low power consumption is designed by using the chopper stabilization technique and the dynamic element matching technique. Based on the TSMC 0.18um process, the spectre environment in cadence is used for design and simulation. The power supply voltage is 1.8V. The post simulation results show that under the TT corner, the average current of the operational amplifier is 139uA, the loop gain is 85.9dB, the phase margin is 68.01°, and the power supp

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Jun and Kwak. "A Compromising Approach to Switching Losses and Waveform Quality in Three-phase Voltage Source Converters with Double-vector based Predictive Control Method." Electronics 8, no. 11 (2019): 1372. http://dx.doi.org/10.3390/electronics8111372.

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A switching losses reduction technique for the model predictive control (MPC) algorithm, which uses double-vector in the three-phase rectifier, is presented. The proposed method controls the output voltage of the rectifier by using reference rectifier input voltages with the offset voltage injection to reduce the switching losses. One leg with the largest source current among the three legs in the rectifier is clamped to either the positive or negative output voltage in the proposed method. The proposed method calculates the offset voltage on the basis of the future rectifier input voltages ob

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G.A., Ibitola, Imafidon L.O., and Ehinlafa O.E. "MEASUREMENT SYSTEM FOR INPUT BIAS –OFFSET CURRENTS OF AN OPERATIONAL AMPLIFIER." Continental J. Engineering Sciences 5, no. 1 (2017): 46–50. https://doi.org/10.5281/zenodo.833741.

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A very simple microprocessor (µP) -based dedicated instrument is designed here.' The Overall system design consists of both hardware and software designs. This set-up yields the exact values of input bias and input off-set currents on the µP display panel, one after the other, when the operational amplifier (OP- AMP) under test is connected across the test terminals.

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9

Nepomnyashchiy, O. V., Yu V. Krasnobaev, I. E. Sazonov, and A. P. Yablonskiy. "A Switching Converter Losses Decreasing Method." Proceedings of Tomsk State University of Control Systems and Radioelectronics 25, no. 2 (2022): 82–90. http://dx.doi.org/10.21293/1818-0442-2022-25-2-82-90.

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A signal timing calculation method to control power switches of bidirectional switching converter (SC) with high efficiency is proposed. The method is applicable for MOSFET-based cascaded boost-buck converter, which has a negative offset current flow at the beginning of each conversion period. This current allows to perform turning on switches under zerovoltage and zero current switching condition to minimize switching losses. Meanwhile, the delay time between halfbridge transistors’ switching points is needed, when transistors’ output capacitances recharging takes place with following anti pa

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10

Liu, Zheyu, and Siming Wang. "An anti-offset wireless power trasfer system with constant current/constant voltage output." Journal of Physics: Conference Series 2656, no. 1 (2023): 012003. http://dx.doi.org/10.1088/1742-6596/2656/1/012003.

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Abstract This article proposes a wireless power transfer (WPT) system based on LCC-LCC and LC-LC series hybrid compensation topology with offset resistance and constant current/voltage output performance. The system uses LCC-LCC and LC-LC networks for input and output series and adopts a four-direction decoupled magnetic coupling structure. On this basis, by designing appropriate parameters, a constant current output independent of the load was achieved, and the performance of resisting coil offsets in the four directions of x, y, xy, and -xy can be achieved. Furthermore, a T-network facilitat

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Li, Shuowei, Zule Xu, and Tetsuya Iizuka. "Analysis of strong-arm comparator with auxiliary pair for offset calibration." Analog Integrated Circuits and Signal Processing 110, no. 3 (2022): 535–46. http://dx.doi.org/10.1007/s10470-022-01992-6.

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AbstractThis paper analyzes the principle of the input-referred off calibration using the auxiliary pair for Strong-Arm comparator as well as its impact from the additional common-mode current and parasitic capacitance on the input-referred noise, offset, and decision time in detail. The comparison with the simulation results demonstrates the accurate prediction with the proposed analysis. This paper also discusses the design guideline to optimize the Strong-Arm comparator with the auxiliary pair for offset calibration.

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Jun, Eun-Su, Minh Hoang Nguyen, and Sangshin Kwak. "Three-Phase Three-Level Neutral Point Clamped Rectifier with Predictive Control Method without Employing Weighting Factor." Applied Sciences 10, no. 15 (2020): 5149. http://dx.doi.org/10.3390/app10155149.

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A predictive control method using injected offset voltage to achieve neutral point (NP) voltage balance of three-phase three-level neutral point clamped (NP) rectifiers, without employing a weighting factor, is proposed in this study. One of the biggest problems with the three-level NP rectifiers is the dc link capacitor voltage imbalance. Therefore, it is necessary to maintain the balance of the NP voltage in addition to synthesize the three-phase sinusoidal input current by control methods. Conventional predictive control methods for the NP rectifiers have used a weighting factor in a cost f

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13

Paun, Maria-Alexandra. "Main Parameters Characterization of Bulk CMOS Cross-Like Hall Structures." Advances in Materials Science and Engineering 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/6279162.

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A detailed analysis of the cross-like Hall cells integrated in regular bulk CMOS technological process is performed. To this purpose their main parameters have been evaluated. A three-dimensional physical model was employed in order to evaluate the structures. On this occasion, numerical information on the input resistance, Hall voltage, conduction current, and electrical potential distribution has been obtained. Experimental results for the absolute sensitivity, offset, and offset temperature drift have also been provided. A quadratic behavior of the residual offset with the temperature was o

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14

Nepomnyaschiy, O. V., Yu V. Krasnobaev, I. E. Sazonov, and A. P. Yablonskiy. "A software-based method for energy losses decreasing in cascaded buck + boost DC-DC converter." Journal of Physics: Conference Series 2388, no. 1 (2022): 012025. http://dx.doi.org/10.1088/1742-6596/2388/1/012025.

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Abstract A MOSFETs switching times calculation method for the known modulation strategy for bidirectional buck + boost DC-DC converter is presented. A former low-loss, constant-frequency modulation strategy based on a negative inductor offset current takes place at the beginning of each conversion period which provides the ability to turn on converter’s MOSFET switches under zero-voltage and zero current switching (ZVS/ZCS) condition. Time interval between switching times of half-bridge MOSFETs is needed to provide the ability to turn on the MOSFET under ZVS/ZCS due to its antiparallel diode t

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15

Lee, Kui-Jun. "Analytical Modeling of Neutral Point Current in T-type Three-level PWM Converter." Energies 13, no. 6 (2020): 1324. http://dx.doi.org/10.3390/en13061324.

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Since a T-type three-level PWM converter has several intrinsic advantages, it has been researched for various applications such as grid-connected converter systems. However, it necessarily requires an additional voltage control loop for balancing the upper and the lower DC-link voltage. To satisfy this requirement, an offset voltage is widely used to provide a neutral point current without affecting other variables such as total DC-link voltage and three-phase input current. However, these methods are mostly based on the averaged value between the applied offset voltage and the neutral point v

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16

Strauss, Gregory P., Katherine H. Visser, Bern G. Lee, and James M. Gold. "The Positivity Offset Theory of Anhedonia in Schizophrenia." Clinical Psychological Science 5, no. 2 (2017): 226–38. http://dx.doi.org/10.1177/2167702616674989.

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Prior studies have concluded that schizophrenia patients are not anhedonic because they do not report reduced experience of positive emotion to pleasant stimuli. The current study challenged this view by applying quantitative methods validated in the evaluative space model of emotional experience to test the hypothesis that schizophrenia patients evidence a reduction in the normative “positivity offset” (i.e., the tendency to experience higher levels of positive than negative emotional output when stimulus input is absent or weak). Participants included 76 schizophrenia patients and 60 healthy

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17

Riem, Robbe, Johan Raman, and Pieter Rombouts. "A 2 MS/s Full Bandwidth Hall System with Low Offset Enabled by Randomized Spinning." Sensors 22, no. 16 (2022): 6069. http://dx.doi.org/10.3390/s22166069.

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In this paper, a Hall plate readout with a randomized four-phase spinning-current scheme is proposed. The goal is to remove the maximum number of offset components, including the offset associated with spike demodulation. The outcome is that only the smallest possible offset remains, corresponding to the residual offset of the Hall plate which cannot be distinguished from the Hall signal. An additional innovation is to operate various offset-reduction loops in spread-spectrum mode, allowing the removal of error components without notching out any in-band signals. The resulting approach deliver

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18

Wang, Rui, Deping Huang, Tianshi He, Jinghong Chen, Yang You, and Ping Gui. "Effect of OPAMP Input Offset on Continuous-Time $\Delta\Sigma$ Modulators With Current-Mode DACs." IEEE Transactions on Circuits and Systems I: Regular Papers 62, no. 7 (2015): 1699–706. http://dx.doi.org/10.1109/tcsi.2015.2434098.

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19

Arnaud, A., R. Fiorelli, and C. Galup-Montoro. "Nanowatt, Sub-nS OTAs, With Sub-10-mV Input Offset, Using Series-Parallel Current Mirrors." IEEE Journal of Solid-State Circuits 41, no. 9 (2006): 2009–18. http://dx.doi.org/10.1109/jssc.2006.880606.

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20

Shin, Jonghan, Christof Koch, and Rodney Douglas. "Adaptive Neural Coding Dependent on the Time-Varying Statistics of the Somatic Input Current." Neural Computation 11, no. 8 (1999): 1893–913. http://dx.doi.org/10.1162/089976699300016016.

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It is generally assumed that nerve cells optimize their performance to reflect the statistics of their input. Electronic circuit analogs of neurons require similar methods of self-optimization for stable and autonomous operation. We here describe and demonstrate a biologically plausible adaptive algorithm that enables a neuron to adapt the current threshold and the slope (or gain) of its current-frequency relationship to match the mean (or dc offset) and variance (or dynamic range or contrast) of the time-varying somatic input current. The adaptation algorithm estimates the somatic current sig

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21

Yang, Zhong, Jiaqi Li, Jiangduo Fu, Jiayin Song, Qingsong Cai, and Shushan Qiao. "A 250 °C Low-Power, Low-Temperature-Drift Offset Chopper-Stabilized Operational Amplifier with an SC Notch Filter for High-Temperature Applications." Applied Sciences 15, no. 2 (2025): 849. https://doi.org/10.3390/app15020849.

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This paper proposes a three-stage op amp based on the SOI (silicon-on-insulator) process, which achieves a low offset voltage and temperature coefficient across a wide temperature range from −40 °C to 250 °C. It can be used in aerospace, oil and gas exploration, automotive electronics, nuclear industry, and in other fields where the ability of electronic devices to withstand high-temperature environments is strongly required. By utilizing a SC (Switched Capacitor) notch filter, the op amp achieves low input offset in a power-efficient manner. The circuit features a multi-path nested Miller com

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22

Khateb, Fabian, Montree Kumngern, Tomasz Kulej, and Jiri Vavra. "A 328 nW, 0.45 V Current Differencing Transconductance Amplifier and Its Application in a Current-Mode Universal Filter." Applied Sciences 15, no. 7 (2025): 3471. https://doi.org/10.3390/app15073471.

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This paper presents a low-voltage, low-power current differencing transconductance amplifier (CDTA) utilizing the bulk-driven MOS transistor technique in the subthreshold region for reduced voltage and power consumption. The proposed CDTA includes a z-copy terminal, which enhances its functionality in current-mode circuit applications. Designed in the Cadence Virtuoso environment using 0.18 µm CMOS technology from Taiwan Semiconductor Manufacturing Company (TSMC), the amplifier operates with a supply voltage of 0.45 V and consumes 328 nW of power, with a bias current set to 10 nA. The current

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TAMMAM, AMR ABDALLAH, MOHAMED BEN-ESMAEL, and MOHAMMED R. ABAZAB. "CURRENT FEEDBACK OP-AMP UTILIZES NEW CURRENT CELL TO ENHANCE THE CMRR." Journal of Circuits, Systems and Computers 21, no. 05 (2012): 1250038. http://dx.doi.org/10.1142/s0218126612500387.

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Despite excellent high frequency and high speed performance, current-feedback operational amplifiers (CFOAs) generally exhibit poor common-mode rejection (CMRR) properties, which limit their utility [Analogue IC design: The current–mode approach, IEE Circuits and Systems Series, Peter peregrinus, 1990]. A novel current feedback operational amplifier (CFOA) with improved performance is presented. The proposed CFOA has a new current-cell [Novel current-feedback operational amplifier Design Based on a floating circuit technique, IEE Colloquium on Analogue Signal Processing, 1998], to bias the ent

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Eswaramoorthi R. "Frequency Offset Estimation for UWB-OFDM System using Weight and Exhaustiveness based Monarch Butterfly Optimization Approach." Journal of Electrical Systems 20, no. 6s (2024): 2671–84. http://dx.doi.org/10.52783/jes.3277.

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The performance of an OFDM system has limitation because the carrier frequency offset (CFO) and sampling frequency offset (SFO) is not estimated correctly. Current methods propose the way of obtaining frequency estimation by using the evolutionary algorithm, but the evolution algorithm suffers from the premature convergence problem. In order to provide efficient frequency offset estimation, this paper proposed weight and exhaustiveness based monarch butterfly optimization approach. First, on the transmitter block, for modulating an input symbol, the Hybrid-Quadrature Phase-Shift Keying modulat

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Li, Jiawei, Zhenzhu Xi, Xingpeng Chen, et al. "Ultralow Noise Low Offset Chopper Amplifier for Induction Coil Sensor to Detect Geomagnetic Field of 1 mHz to 1 kHz." Journal of Environmental and Engineering Geophysics 25, no. 4 (2020): 497–511. http://dx.doi.org/10.32389/jeeg20-014.

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An induction coil sensor (ICS) is important for measuring low-frequency (DC-1kHz) geomagnetic field. The accuracy of the preamplifier is one key factor determining the performance of the sensor. But the preamplifier is susceptible to 1/ f noise, offset voltage and drift. In order to eliminate these influences, a preamplifier circuit with three amplifier stages based on chopper technology has been designed, and its performance has been tested. The results show that: 1) The 1/ f noise corner frequency is 3 mHz, the equivalent input voltage noise (EIVN) level of the circuit is [Formula: see text]

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Hasan, Mohd Faizan, Prem Kumar Bharti, and Mohd Reyaz Ur Rahim. "An investigation of wire offset and surface morphology of Die Steel D-3 on Wire EDM by using RSM-CCD." Production Engineering Archives 27, no. 2 (2021): 112–18. http://dx.doi.org/10.30657/pea.2021.27.14.

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Abstract The work investigated the effect on wire offset and surface morphology, with input process parameters as peak current, pulse on time, wire tension over Die Steel D3. Some of experiments were performed by using response surface methodology (RSM) as the design of experiment with central composite design (CCD) technique for the analysis. The ANOVA results annotate that the model is significant. Wire Tension and peak current are observed to have major impact on wire offset during machining operation and surface morphology. The scanning electron microscope (SEM) images confirmed that the t

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LU, CHIH-WEN, and CHING-MIN HSIAO. "A RAIL-TO-RAIL BUFFER AMPLIFIER FOR LCD DRIVER." Journal of Circuits, Systems and Computers 20, no. 07 (2011): 1377–87. http://dx.doi.org/10.1142/s0218126611007979.

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A high-speed low-power rail-to-rail buffer amplifier, which is suitable for liquid crystal display driver applications, is proposed. An offset voltage is intentionally built in the second stage to cut off the transistors of last stage from the output node in the stable state and hence achieve low dc power consumption. The input referred offset voltage due to the built-in offset is very small. The buffer draws little current while static but has a large driving capability while transient. An experimental prototype buffer amplifier implemented in a 0.35-μm CMOS technology demonstrates that the c

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Bartolomeo, Lisa, and Gregory Strauss. "Unpacking the Anhedonia Paradox Across the Psychosis Continuum: The Role of the Positivity Offset." Journal of Emotion and Psychopathology 1, no. 2 (2025): 423–39. https://doi.org/10.55913/joep.v1i2.45.

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Conceptual models of negative symptoms evolved to explain how seemingly intact hedonic capacity fails to translate to motivated behavior in SZ; however, Cacioppo’s Evaluative Space Model indicates that hedonic deficits are apparent in the form of a reduced positivity offset (i.e., experiencing lower levels of positive relative to negative emotion when affective input is absent). Prior evidence indicates that the positivity offset is reduced across the psychosis continuum and associated with negative symptoms, suggesting it may contribute to the disjunction between hedonic and volitional respon

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Chen, Zhen, Zherong Pan, Kui Wu, Etienne Vouga, and Xifeng Gao. "Robust Low-Poly Meshing for General 3D Models." ACM Transactions on Graphics 42, no. 4 (2023): 1–20. http://dx.doi.org/10.1145/3592396.

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We propose a robust re-meshing approach that can automatically generate visual-preserving low-poly meshes for any high-poly models found in the wild. Our method can be seamlessly integrated into current mesh-based 3D asset production pipelines. Given an input high-poly, our method proceeds in two stages: 1) Robustly extracting an offset surface mesh that is feature-preserving, and guaranteed to be watertight, manifold, and self-intersection free; 2) Progressively simplifying and flowing the offset mesh to bring it close to the input. The simplicity and the visual-preservation of the generated

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Yedukondalu, Udara, Vinod Arunachalam, Vasudha Vijayasri Bolisetty, and Ravikumar Guru Samy. "Fully synthesizable multi-gate dynamic voltage comparator for leakage reduction and low power application." Indonesian Journal of Electrical Engineering and Computer Science 28, no. 2 (2022): 716–23. https://doi.org/10.11591/ijeecs.v28.i2.pp716-723.

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The paper presents the implementation of a standard cell multigate fully synthesizable rail-to-rail dynamic voltage comparator. The dynamic voltage comparator works on deep sub-threshold supply voltage VDD =0.3 V with common mode inputs. The common-mode input range is VDD/2 with minimum input offset voltage ranging between 8mV to 28mV. Thus the circuit is simulated at 180nm complementary metal-oxide semiconductor (CMOS) process. Hence the dynamic voltage comparator has measured and tabulated by corresponding output voltage, power dissipation. But the performance of CMOS device is not good when

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Liu, Lianxi, Yanbo Pang, Xufeng Liao, Zhangming Zhu, and Yintang Yang. "A Power-Enhanced Active Rectifier with Offset-Controlled Comparator for Self-Powered PEH Systems." Journal of Circuits, Systems and Computers 27, no. 05 (2018): 1850079. http://dx.doi.org/10.1142/s0218126618500792.

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In this paper, a power-enhanced active rectifier with high precision of current detection for piezoelectric energy harvesting (PEH) system is presented. A traditional two-stage active rectifier is adopted, which includes a first-stage negative voltage converter and an active diode. A comparator with offset control technique is proposed; thus the input-referred offset voltage of the proposed comparator can be less than 1[Formula: see text]mV. The current detected accuracy of the proposed offset-controlled comparator (OCC) is improved by more than 10 times over a traditional comparator. Output o

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Liu, Jilong, Weiwei Zhang, Fei Xiao, Chuanqiang Lian, and Shan Gao. "Six-Step Mode Control of IPMSM for Railway Vehicle Traction Eliminating the DC Offset in Input Current." IEEE Transactions on Power Electronics 34, no. 9 (2019): 8981–93. http://dx.doi.org/10.1109/tpel.2018.2888877.

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Yedukondalu, Udara, Vinod Arunachalam, Vasudha Vijayasri Bolisetty, and Ravikumar Guru Samy. "Fully synthesizable multi-gate dynamic voltage comparator for leakage reduction and low power application." Indonesian Journal of Electrical Engineering and Computer Science 28, no. 2 (2022): 716. http://dx.doi.org/10.11591/ijeecs.v28.i2.pp716-723.

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The paper presents the implementation of a standard cell multigate fully synthesizable rail-to-rail dynamic voltage comparator. The dynamic voltage comparator works on deep sub-threshold supply voltage VDD =0.3 V with common mode inputs. The common-mode input range is VDD/2 with minimum input offset voltage ranging between 8mV to 28mV. Thus the circuit is simulated at 180nm Complementary Metal-Oxide Semiconductor (CMOS) process. Hence the dynamic voltage comparator has measured and tabulated by corresponding output voltage, power dissipation. But the performance of CMOS device is not good when

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Bhatia, Veepsa, and Neeta Pandey. "Modified Tang and Pun’s Current Comparator and Its Application to Full Flash and Two-Step Flash Current Mode ADCs." Journal of Electrical and Computer Engineering 2017 (2017): 1–12. http://dx.doi.org/10.1155/2017/8245181.

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A modification to an existing current comparator proposed by Tang and Pun has been presented. The circuit introduces a flipped voltage follower (FVF) which replaces the source follower input stage of the existing current comparator of Tang and Pun. This modification culminates into higher speed especially at lower currents and lower power dissipation. The application of the proposed current comparator has also been put forth by implementing a 3-bit current mode (CM) ADC and a two-step 3-bit CM ADC. The theoretical propositions are verified through spice simulation using 0.18 μm TSMC CMOS techn

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Nam, Kyeongsik, Hyungseup Kim, Yongsu Kwon та ін. "A Four-Channel Low-Noise Readout IC for Air Flow Measurement Using Hot Wire Anemometer in 0.18 μm CMOS Technology". Sensors 21, № 14 (2021): 4694. http://dx.doi.org/10.3390/s21144694.

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Air flow measurements provide significant information required for understanding the characteristics of insect movement. This study proposes a four-channel low-noise readout integrated circuit (IC) in order to measure air flow (air velocity), which can be beneficial to insect biomimetic robot systems that have been studied recently. Instrumentation amplifiers (IAs) with low-noise characteristics in readout ICs are essential because the air flow of an insect’s movement, which is electrically converted using a microelectromechanical systems (MEMS) sensor, generally produces a small signal. The f

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Wang, Cheng, Zhanpeng Yang, Xinpeng Xing, Quanzhen Duan, Xinfa Zheng, and Georges Gielen. "A 10-Bit 400 MS/s Dual-Channel Time-Interleaved SAR ADC Based on Comparator Multiplexing." Electronics 12, no. 19 (2023): 4062. http://dx.doi.org/10.3390/electronics12194062.

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This paper proposes a 10-bit 400 MS/s dual-channel time-interleaved (TI) successive approximation register (SAR) analog-to-digital converter (ADC) immune to offset mismatch between channels. A novel comparator multiplexing structure is proposed in our design to mitigate comparator offset mismatch between channels and improve ADC dynamic performance. Compared to traditional TI-SAR ADC utilizing offset calibration technique, hardware and power consumption overhead are minimized in our design. In addition, a split capacitive digital-to-analog converter (CDAC) and a double-tail dynamic comparator

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Qamar, Afzaal, Dzung Viet Dao, Ji Sheng Han, et al. "Pseudo-Hall Effect in Single Crystal n-Type 3C-SiC(100) Thin Film." Key Engineering Materials 733 (March 2017): 3–7. http://dx.doi.org/10.4028/www.scientific.net/kem.733.3.

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This article reports the first results on stress induced pseudo-Hall effect in single crystal n-type 3C-SiC(100) grown by LPCVD process. After the growth process, Hall devices were fabricated by standard photolithography and dry etching processes. The bending beam method was employed to study the stress induced changes in the electrical response of the fabricated Hall devices. It has been observed that when stress is applied to the 3C-SiC(100) Hall devices, the offset voltage of the Hall devices varies linearly with the applied compressive and tensile stresses which is called, the pseudo-Hall

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Kwon, Yongsu, Hyungseup Kim, Jaesung Kim, et al. "Fully Differential Chopper-Stabilized Multipath Current-Feedback Instrumentation Amplifier with R-2R DAC Offset Adjustment for Resistive Bridge Sensors." Applied Sciences 10, no. 1 (2019): 63. http://dx.doi.org/10.3390/app10010063.

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A fully differential multipath current-feedback instrumentation amplifier (CFIA) for a resistive bridge sensor readout integrated circuit (IC) is proposed. To reduce the CFIA’s own offset and 1/f noise, a chopper stabilization technique is implemented. To attenuate the output ripple caused by chopper up-modulation, a ripple reduction loop (RRL) is employed. A multipath architecture is implemented to compensate for the notch in the chopping frequency band of the transfer function. To prevent performance degradation resulting from external offset, a 12-bit R-2R digital-to-analog converter (DAC)

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Jyoti, Dabass*, Pradeep Dimiri Dr., and Dabas Kadyan Manju. "ADAPTIVE SCHMITT TRIGGER BASED ON OTA DRIVEN BY DIFFERENTIAL INPUT VOLTAGE FOR SETTING QUIESCENT HYSTERESIS AND COMPENSATING AMPLIFIER OFFSET." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 5, no. 4 (2016): 204–7. https://doi.org/10.5281/zenodo.48875.

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Schmitt Trigger, first presented by Schmitt in 1938 is extensively used in Pulse Width Modulation Circuits, Sensors, Square Wave Generators, buffers and Sub threshold SRAM. It utilizes the fundamental concept of bi-stable  state i.e.  for positive and negative going input signals, Schmitt Trigger shows different switching thresholds which is termed as Hysteresis. Slew rate and bandwidth of the op-amp restricts the performance of Schmitt Trigger based on op-amp. Schmitt Trigger using Current Conveyors lack electronically tuned hysteresis level.  CDTA and CCCDTA based Schmitt Trig

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Mr., Nilesh Subhashlal Chorbele, and Sanvedi Rane Dr. "An Empirical Study of Challenges pertaining to the Input Tax Credit (ITC) under the Goods & Service Tax Regime." International Journal of Advance and Applied Research S6, no. 16 (2025): 31–36. https://doi.org/10.5281/zenodo.15130151.

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<em>This review paper critically examines the empirical challenges faced by businesses in claiming Input Tax Credit (ITC) under the Goods and Services Tax (GST) regime. One of the key provisions of the GST law is the Input Tax Credit (ITC). ITC aims to eliminate cascading taxes by allowing businesses to offset the tax paid on inputs( Purchases ) against the tax collected on outputs ( Sales ). The paper highlights key challenges such as complex compliance procedures, technical issues in the GST portal, mismatches in supplier and buyer data, and lack of awareness among taxpayers. Furthermore, it

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Ryu, Sang-Gyun, Chan-Bae Park, Hyung-Woo Lee, and Jae-Bum Lee. "Voltage Multiplier with High Input/Output Voltage Gain from Center-Tap Rectifier-Voltage Tripler and Quadrupler." Electronics 11, no. 8 (2022): 1188. http://dx.doi.org/10.3390/electronics11081188.

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This paper proposes new rectifiers in the center-tap transformer to provide higher input/output (I/O) voltage gain with an equal transformer turns-ratio in the LLC resonant converter: a voltage tripler rectifier and a voltage quadrupler rectifier, which have simple structures with one capacitor and two diodes, and three and four times higher I/O voltage gain than a center-tap rectifier, respectively. Each rectifier is compared in terms of the transformer turns-ratio and the magnetizing offset current, and the voltage and current stresses in the capacitors and diodes. The validity of these prop

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Xu, Weilin, Taotao Wang, Xueming Wei, et al. "Low Noise, High Input Impedance Digital-Analog Hybrid Offset Suppression Amplifier for Wearable Dry Electrode ECG Monitoring." Electronics 9, no. 1 (2020): 165. http://dx.doi.org/10.3390/electronics9010165.

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The portable real-time electrocardiogram (ECG) is a convenient and promising electronic device for cardiovascular diseases patients. However, unlike wet gel electrodes in traditional clinical applications, dry electrodes are competent for comfortable long-time wearing and can prevent skin ulceration. Its ultra-high source impedance and electrode offset (EOS) make traditional chopper amplifiers with low input impedance and limited EOS range difficult to apply to this area. To overcome these challenges, this paper proposes a novel chopper amplifier topology. This architecture includes a gain con

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Planke, Lars J., Alessandro Gardi, Roberto Sabatini, Trevor Kistan, and Neta Ezer. "Online Multimodal Inference of Mental Workload for Cognitive Human Machine Systems." Computers 10, no. 6 (2021): 81. http://dx.doi.org/10.3390/computers10060081.

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With increasingly higher levels of automation in aerospace decision support systems, it is imperative that the human operator maintains a high level of situational awareness in different operational conditions and a central role in the decision-making process. While current aerospace systems and interfaces are limited in their adaptability, a Cognitive Human Machine System (CHMS) aims to perform dynamic, real-time system adaptation by estimating the cognitive states of the human operator. Nevertheless, to reliably drive system adaptation of current and emerging aerospace systems, there is a ne

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Hu, Saisai, and Wangqiang Niu. "Experimental Results and Analysis of Wireless Charging Technology for Equipment Under Seawater." World Electric Vehicle Journal 16, no. 4 (2025): 195. https://doi.org/10.3390/wevj16040195.

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A constant current constant voltage charging scheme based on a single-ended primary inductive converter is proposed to address the key issues of wireless power transfer (WPT) technology for charging devices in seawater environments. The scheme can effectively adapt to the complex transmission conditions of a WPT system in a seawater environment by using the advantages of single-ended primary inductor converter (SEPIC) topology, such as adjustable voltage, wide input range, and the same polarity as output; its regulating effect on charging current and voltage is modeled and analyzed. An underwa

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Choi, Gyuri, Kyeongsik Nam, Mookyoung Yoo, et al. "Current-Feedback Instrumentation Amplifier Using Dual-Chopper Fill-in Technique." Applied Sciences 12, no. 20 (2022): 10471. http://dx.doi.org/10.3390/app122010471.

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In this study, we describe a dual-chopper glitch-reduction current-feedback instrumentation amplifier (CFIA) with a ripple reduction loop. The amplifier employs the chopping technique to reduce low-frequency noise, such as 1/f noise. A glitch caused by chopping occurs at each chopper clock edge and results in intermodulation distortion (IMD). Owing to the input offset, the chopping technique also produces ripples. In this study, the glitch-induced IMD was reduced using a fill-in technique whereby only neat signals were alternately used as outputs by avoiding the glitch section with dual-choppi

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Simley, Eric, Paul Fleming, and Jennifer King. "Design and analysis of a wake steering controller with wind direction variability." Wind Energy Science 5, no. 2 (2020): 451–68. http://dx.doi.org/10.5194/wes-5-451-2020.

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Abstract. Wind farm control strategies are being developed to mitigate wake losses in wind farms, increasing energy production. Wake steering is a type of wind farm control in which a wind turbine's yaw position is misaligned from the wind direction, causing its wake to deflect away from downstream turbines. Current modeling tools used to optimize and estimate energy gains from wake steering are designed to represent wakes for fixed wind directions. However, wake steering controllers must operate in dynamic wind conditions and a turbine's yaw position cannot perfectly track changing wind direc

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Wang, Yunzhen, Shengxi Diao, Fujiang Lin, and Haiquan Yuan. "An Ultra-Low Power Subthreshold CMOS RSSI for Wake-Up Receiver." Journal of Circuits, Systems and Computers 25, no. 08 (2016): 1650090. http://dx.doi.org/10.1142/s0218126616500900.

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This paper reports an ultra-low power received signal strength indicator (RSSI) for low frequency (LF) wake-up receiver. Topology theory analysis and subthreshold operation are performed to lower power consumption. Each gain stage of the subthreshold limiting amplifier (LA) employs cascade diode-connected loads to obtain high output impedance while maintaining low power. An offset cancelation circuit with different tail currents, which also operates in the subthreshold region, is employed to reduce the DC offset voltage. Unbalanced source-coupled pairs of subthreshold devices adopted in the fu

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Kim, Yongjae, and Sehun Rhee. "Arc sensor model using multiple-regression analysis and a neural network." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 219, no. 6 (2005): 431–45. http://dx.doi.org/10.1243/095440505x32346.

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Experimental arc sensor models are developed by consideration of the welding conditions and characteristics of each welding process, and developing the model is significant because of its applicability to various welding environments. In this study, different types of regression model were developed for the current area difference method, the current integration difference method, and the weaving end current difference method, which are commonly used for the arc sensor. The characteristics of each regression model were examined, and a multiple-regression model was subsequently suggested, integ

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Islam, S. M. Rakiul, and Sung-Yeul Park. "Versatile AC Current Control Technique for a Battery Using Power Converters." Batteries 7, no. 3 (2021): 47. http://dx.doi.org/10.3390/batteries7030047.

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Although a battery is a DC device, AC current is often necessary for testing, preheating, impedance spectroscopy, and advanced charging. This paper presents a versatile control technique to inject AC current to a battery. Synchronous buck and H-bridge topologies are operated in bidirectional mode and controlled by uni-polar and bi-polar pulse width modulation techniques for the AC current injection. The input and output passive circuits are specially designed considering AC current and the properties of the battery. A controller is proposed considering a small internal impedance, small AC ripp

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Pham, Thi Thuy, Dongmin Kim, Seo-Hyeong Jeong, Junghyup Lee, and Donggu Im. "A High Efficiency Low Noise RF-to-DC Converter Employing Gm-Boosting Envelope Detector and Offset Canceled Latch Comparator." Electronics 10, no. 9 (2021): 1078. http://dx.doi.org/10.3390/electronics10091078.

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This work presents a high efficiency RF-to-DC conversion circuit composed of an LC-CL balun-based Gm-boosting envelope detector, a low noise baseband amplifier, and an offset canceled latch comparator. It was designed to have high sensitivity with low power consumption for wake-up receiver (WuRx) applications. The proposed envelope detector is based on a fully integrated inductively degenerated common-source amplifier with a series gate inductor. The LC-CL balun circuit is merged with the core of the envelope detector by sharing the on-chip gate and source inductors. The proposed technique dou

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