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Comparison of the Wideband Power Sources Used to Supply Step-Up Current Transformers for Generation of Distorted Currents

Michal Kaczmarek, Piotr Kaczmarek
2020 Energies  
Their application is to supply a step-up current transformer for generation of the distorted current required to test the transformation accuracy of the distorted currents of the inductive current transformers  ...  In this paper a comparison of the wideband power sources of a pulse width modulation (PWM) inverter and a power supply composed of an audio power amplifier and a two-channel arbitrary generator is discussed  ...  Moreover, the wideband step-up current (or voltage) transformer is used [8, 9, 16, 17] .  ... 
doi:10.3390/en13071849 fatcat:lmmebjdnjjevthl5mhrs7zicbi

Simulation model of one-phase full bridge diode rectifier with current modulator

Łukasz Ciepliński, Michał Krystkowiak, Michał Gwóźdź, R. Nawrowski, J. Lorenc, Z. Nadolny, A. Tomczewski, J. Jajczyk, L. Kasprzyk, A. Bugała, K. Budnik
2019 ITM Web of Conferences  
In the article, the simulation model of a one-phase full bridge diode rectifier with a current modulator in the input circuit is described.  ...  The proposed solution is characterized by the consumption of a sinusoidal current from a power grid, compatible in phase with the fundamental harmonic of voltage.  ...  The current modulator is a controlled power electronic current source connected to the main circuit using a wideband transformer.  ... 
doi:10.1051/itmconf/20192801013 fatcat:iuomgxqnkbh47cax6nbyn6bdpm

Characterizing power transformer frequency responses using bipolar pseudo-random current impulses

Fredrick Mwaniki, Ahmed A. Sayyid
2021 International Journal of Power Electronics and Drive Systems (IJPEDS)  
This paper presents the use of a unique excitation waveform comprising of pseudo-random current impulses to accurately identify the wideband characteristics of a power transformer.  ...  Compared to the traditional transformer identification methods, the pseudo-random current impulses offer a wideband excitation with a higher degree of controllability such that its spectral energy can  ...  A DC voltage of 60 V is applied to the H-bridge input.  ... 
doi:10.11591/ijpeds.v12.i4.pp2423-2434 fatcat:armtyhdbbjhi5jgrbrfgtnjooq

Electronic Circuits: Design and Applications

1993 Discrete Applied Mathematics  
Chapter 16: Wideband Amplifiers. Frequency dependence of the current gain. Effect of transistor and stray capacitances. Cascade amplifier. Differential amplifier as a wideband amplifier.  ...  Symmetrical wideband amplifier. Wideband voltage follower. Wideband operational amplifier. Transimpedance amplifiers. Wideband composite amplifiers. Chapfer 17: Power Amplifiers.  ... 
doi:10.1016/0166-218x(93)90145-e fatcat:dwnmphxcynb7pd3a6rfsw3leym

A Blocker-Tolerant, Noise-Cancelling Receiver Suitable for Wideband Wireless Applications

David Murphy, Hooman Darabi, Asad Abidi, Amr A. Hafez, Ahmad Mirzaei, Mohyee Mikhemar, Mau-Chung Frank Chang
2012 IEEE Journal of Solid-State Circuits  
A new wideband receiver architecture is proposed that employs two separate passive-mixer-based downconversion paths, which enables noise cancelling, but avoids voltage gain at blocker frequencies.  ...  This approach significantly relaxes the trade-off between noise, out-of-band linearity and wideband operation.  ...  There are important uses, such as in the hybrid transformer, of flux cancellations in transformer windings sharing a common core.  ... 
doi:10.1109/jssc.2012.2217832 fatcat:qrxv2chxhvacjez6pbmixt6g6m

DEVELOPMENT OF A WIDEBAND HIGHLY EFFICIENT GAN VMCD VHF/UHF POWER AMPLIFIER

Song Lin, Aly E. Fathy
2011 Progress In Electromagnetics Research C  
To assure a wideband operation, a coaxial line impedance transformer has been used as part of the input matching network; meanwhile, a wideband a 1:1 ferrite loaded balun and low pass filters are utilized  ...  The demonstrated wideband power amplifier utilizes two GaN HEMTs and operates in a push-pull voltage mode Class D (VMCD).  ...  Namely, a transformer coupled voltage-mode Class D (VMCD) and a transformer coupled current-mode Class D (CMCD). The two configurations are shown in Figure 1 .  ... 
doi:10.2528/pierc10112306 fatcat:tehcjwcumbeencxuw7usdqaium

Index by Authors

2020 2020 Conference on Precision Electromagnetic Measurements (CPEM)  
Wideband Current-to-Voltage Transformer Set for Currents up to 2 kA High Voltage and Current -Ratio and Sensors Rapuano, Segio A phase measurement method to guarantee the traceability of the calibration  ...  wideband current shunt Conventional Electrical Standards -Current Malmbekk, Helge In-circuit current measurements with a frequency above 1 MHz: a shunt based on active components Conventional Electrical  ... 
doi:10.1109/cpem49742.2020.9191903 fatcat:lbfsuf6uvzbgjpywo2lkbobx5i

Wideband Systems with Energy Harvesting Units for 5G, Medical and Computer Industry [chapter]

Albert Sabban
2021 Green Technologies and Computing Industry [Working Title]  
A wideband slot antenna covers the frequency range from 0.4GHz to 6.4GHz. A wideband fractal notch antenna covers the frequency range from 6GHz to 18GHz.  ...  A wideband metamaterial antenna with metallic strips covers the frequency range from 0.15GHz to 0.42GHz. The antenna bandwidth is around 75% for VSWR better than 2.3:1.  ...  A rectifier converts AC energy, alternating current AC, to DC energy (direct current DC). The popular rectifiers are half wave rectifier or full wave rectifier, [1] [2] [3] [4] .  ... 
doi:10.5772/intechopen.95879 fatcat:lhzmsu5yqnhdhardpvoshlyvry

Fully integrated wideband high-current rectifiers for inductively powered devices

M. Ghovanloo, K. Najafi
2004 IEEE Journal of Solid-State Circuits  
The rectifier areas are 0.12-0.48 mm 2 in the above processes and they are capable of delivering 25 mW from a receiver coil to the implant circuitry.  ...  Various full-wave rectifier topologies and low-power circuit design techniques are employed to decrease substrate leakage current and parasitic components, reduce the possibility of latch-up, and improve  ...  EXPERIMENTAL RESULTS In the first experiment, a wideband isolation transformer (0016PA -North Hills signal processing with 20-Hz-20-MHz bandwidth) was used as the inductive link to eliminate the effect  ... 
doi:10.1109/jssc.2004.835822 fatcat:xzksukhqrrduhg4ja47gtpvi7y

Wideband power amplifier MMICs utilizing GaN on SiC

E. Reese, D. Allen, C. Lee, T. Nguyen
2010 2010 IEEE MTT-S International Microwave Symposium  
The application of GaN on SiC technology to wideband power amplifier MMICs is explored.  ...  A 2 -18 GHz 11W power amplifier MMIC is presented as an example. Index Terms -broadband power amplifiers, MMIC power amplifiers, Gallium Nitride, Silicon Carbide.  ...  Key among those in passive elements are higher impedance transmission lines and higher current handling capability for a given impedance level.  ... 
doi:10.1109/mwsym.2010.5518141 fatcat:xt4h2ugptfamnita5wmav2wy3e

Wideband power amplifier MMICs utilizing GaN on SiC

Eli Reese, Donald Allen, Cathy Lee, Tuong Nguyen
2010 2010 IEEE MTT-S International Microwave Symposium  
The application of GaN on SiC technology to wideband power amplifier MMICs is explored.  ...  A 2 -18 GHz 11W power amplifier MMIC is presented as an example. Index Terms -broadband power amplifiers, MMIC power amplifiers, Gallium Nitride, Silicon Carbide.  ...  Key among those in passive elements are higher impedance transmission lines and higher current handling capability for a given impedance level.  ... 
doi:10.1109/mwsym.2010.5514723 fatcat:x4xudwagnrdkfcg3dim5xgbzmi

Practical circuitry for measurement and control problems [chapter]

Jim Williams
2013 Analog Circuit Design  
If, as shown, a flip-flop is interposed in the A OUT -FB pin path, synchronization to a system clock results. When the output decays far enough (trace A, Figure 2 ) the A OUT pin (trace B) goes low.  ...  Figure 3 's design supplies a 5V output with 200mA capacity. The circuit is essentially a flyback regulator.  ...  The Hall effect transducer lies within the core of the clip-on current transformer specified. A very simplistic way to model the Hall generator is as a bridge, excited by the two 619Ω resistors.  ... 
doi:10.1016/b978-0-12-397888-2.00035-3 fatcat:7jvlodovxjhztlnf4nvho5tuae

Reducing the capacitance of piezoelectric film sensors

Martín G. González, Patricio A. Sorichetti, Guillermo D. Santiago
2016 Review of Scientific Instruments  
for large area, wideband, polymer piezoelectric sensor with low capacitance.  ...  In this way, the total capacitance is reduced by a factor 1/N 2 , whereas the mechanical response and the active area of the sensor are not modified.  ...  product of the bare amplifier. 3 Even though, in principle, it is possible to use an adapting transformer, it requires a careful design to achieve wideband performance, the use of a linear core to reduce  ... 
doi:10.1063/1.4946770 pmid:27131698 fatcat:2ykfdhttbnblperxldvqzx5pey

Theory of vibrationally inelastic electron transport through molecular bridges

M. Čížek, M. Thoss, W. Domcke
2004 Physical Review B  
The current through the junction is obtained approximately using a Landauer-type formula.  ...  Vibrationally inelastic electron transport through a molecular bridge that is connected to two leads is investigated.  ...  It is seen that the coupling to the vibrational motion has a rather strong effect on the current through the bridge.  ... 
doi:10.1103/physrevb.70.125406 fatcat:tbbbwsfnfvckjn6ihje4zfasgy

Good practice guide on the performance of the reference standard SAMU as a calibration reference for the calibration of instruments with digital input or output

Tapio Lehtonen
2021 Zenodo  
This manual covers how to calibrate equipment with input or output according to the definitions in IEC 61850-9-2 and sample rates according to IEC 61869-9 using the sampling wideband power standard.  ...  Current and voltage transformer bridges measure the magnitude and phase errors of instrument transformers.  ...  This includes for example current and voltage transformer bridges used for calibrating digital output instrument transformers.  ... 
doi:10.5281/zenodo.5744443 fatcat:fnjws5xljfehjl6cw4moxch4tm
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