14,507 Hits in 5.8 sec

Extension of voltage range for power and energy calibrations

O. Petersons, T.L. Nelson, N.M. Oldham, G.J. FitzPatrick
1999 IEEE Transactions on Instrumentation and Measurement  
The goal was to develop a multi-ratio divider for voltage ratios to 600 VIl20 V having a relative uncertainty within 5 ILVN. II.  ...  Abstrad-A special purpose ac voltage divider system with ratios of 600,480,360,277, and 240 V to 120 V has been developed to extend the range of primary electric power calibrations from 12~V at 50 and  ...  Snider for their help with the measurements.  ... 
doi:10.1109/19.769620 fatcat:vqtsbdh2avgdzdhw5uswp72jiq

A High Accuracy AC+DC Current Transducer for Calibration

Xia Xiao, Hongtian Song, Hongbin Li
2022 Sensors  
This transducer can be used as a calibration standard of measurement devices for AC only, DC only, or AC and DC simultaneously.  ...  The other one of the added windings is used for the feedback from the AC+DC magnetic potential, allowing the sensor to work in a zero-flux state and to measure AC+DC simultaneously.  ...  AC measuring performance test: (a) the ratio error for AC 0-600 A; and (b) the phase error for AC 0-600 A. Figure 7 . 7 Figure 7.  ... 
doi:10.3390/s22062214 pmid:35336385 pmcid:PMC8950200 fatcat:q47wo2txsbdhvoyfcmli237cka

Using saturated SiGe HBTs to realize ultra-low voltage/power X-band low noise amplifiers

Sachin Seth, Chung Hang John Poh, Tushar Thrivikraman, Rajan Arora, John D. Cressler
2011 2011 IEEE Bipolar/BiCMOS Circuits and Technology Meeting  
At 90 K, this SiGe LNA achieves 17.5 dB of gain at only 600 µW of power, record performance for any known X-band LNA operating at subambient temperatures.  ...  An ultra-low voltage, monolithic 9 GHz (X-band) low noise amplifier has been implemented in 0.13 μm SiGe BiCMOS technology. The SiGe HBTs were intentionally biased in weak saturation (V CE at 0.5 V).  ...  ACKNOWLEDGEMENT The authors are grateful to the members of the SiGe team at Georgia Tech for their contributions, and the support of the SiGe team at IBM.  ... 
doi:10.1109/bctm.2011.6082758 fatcat:p4sdx7lojjdktbai5cm5hije7i

Characterization of high-precision resistive voltage divider and buffer amplifier for ac voltage metrology

Bjørnar Karlsen, Kåre Lind, Helge Malmbekk, Per Ohlckers
2019 International Journal of Metrology and Quality Engineering  
A high-precision voltage buffer and a 10:1 resistive voltage divider have been constructed for use in ac voltage and electrical power metrology.  ...  This make the voltage divider and buffer combination suitable for sampling electrical powers for a wide range of voltages.  ...  Conclusion A high-precision voltage buffer and a 10:1 resistive voltage divider have been constructed for use in ac voltage and electrical power metrology.  ... 
doi:10.1051/ijmqe/2019006 fatcat:ogczsmynlbedpjsv6eb4ygfdtm

Switched-Mode Active Decoupling Capacitor Allowing Volume Reduction of the High-Voltage DC Filters

Vratislav Michal
2016 IEEE transactions on power electronics  
amplifiers or superconducting RSFQ logic.  ...  The coupling capacitor enables use of the low-voltage switched-mode power stage and low-voltage auxiliary decoupling capacitor.  ...  In order to enable the buck-mode operation, the power stage operates under voltage higher than dc-link voltage, e.g., ∼ 600 V for V IN(DC) = 400 V.  ... 
doi:10.1109/tpel.2015.2500920 fatcat:ldvqrksda5ewph3kea537ddbna

Three-stage InP JFET amplifier for receiver optoelectronic integrated circuits

J. Jeong, G.P. Vella-Coleiro, S.J. Kim, J. Eng
1990 IEEE Photonics Technology Letters  
Low gate leakage current of less than 10 nA was observed for gate voltage of -5 V. A turn-on voltage of 1.5 V and a series resistance of 50 ! J were S.  ...  From highfrequency measurements, a 3-dB bandwidth of 400 MHz and a gain of 38 have been measured from the amplifiers. nP JFET's have been integrated with InGaAs p-i-n diode for I receiver optoelectronic  ...  A. Resta for dielectric depositions, D. Ingersoll and D. DeBlis for help in processing, F. Elizabeth and J. Collis for help in layout of test patterns, and B. C. DeLoach for support and encouragement.  ... 
doi:10.1109/68.56601 fatcat:uewhvhbax5aq5f2f2xuicu54ai

Page 171 of POWER Vol. 92, Issue [page]

1948 POWER  
M31 VOLTAGE TESTER—Designed for testing continuity of either ac or de cir- cuits, this unit shows ranges from 110 to 550 v ac and 110 to 600 v de.  ...  POWER - Mid-June, 1948 M10 DC AMPLIFIER — Microsen measures and amplifies minute power im- pulses, using electro-mechanical balance.  ... 

A Fully Integrated Neural Recording Amplifier With DC Input Stabilization

P. Mohseni, K. Najafi
2004 IEEE Transactions on Biomedical Engineering  
The amplifier occupies 0.107 mm 2 in die area, and dissipates 115 W from a 3 V power supply. The total measured input-referred noise voltage in the frequency range of 0.1-10 kHz is 7.8 V rms .  ...  This paper presents a low-power low-noise fully integrated bandpass operational amplifier for a variety of biomedical neural recording applications.  ...  Casey for his help in hybrid systems assembly and Stefan A. Nikles for the fabrication of the sieve electrodes.  ... 
doi:10.1109/tbme.2004.824126 pmid:15132510 fatcat:ta7ajrfkdjhjriqaz5cyctturm

A class-B output buffer for flat-panel-display column driver

Pang-Cheng Yu, Jiin-Chuan Wu
1999 IEEE Journal of Solid-State Circuits  
Its output voltage swing is from 1 V to the supply voltage. With 5-V supply and 600-pF load, the maximum tracking error is 67 mV. The measured static current is 24 A.  ...  This paper presents a low static power, large output swing, and wide operating voltage range class-B output buffer amplifier for driving the large column line capacitance in flat-panel display.  ...  With 5 V supply voltage and 600 pF load capacitance, the measured static current is 24 A; the maximum tracking error voltage is 7 mV; the output voltage swing is from 1 to 5 V.  ... 
doi:10.1109/4.736665 fatcat:upe5qgg46vbd5lzfhwnkfif5ka

Measurements of Shot Noise in Single Walled Carbon Nanotubes

F. Wu, P. Queipo, T. Tsuneta, T. H. Wang, E. Kauppinen, P. Hakonen
2007 AIP Conference Proceedings  
We have measured shot noise in single walled carbon nanotubes (SWNT) at 4.2K over frequencies / = 600 -850 MHz.  ...  The obtained results are compared with regular differential noise measurements where both DC and AC bias are employed.  ...  FIGURE 2 . 2 Amplitude of the measured noise power variation at 2 m as a function of the squared AC' excitation amplitude V] c .  ... 
doi:10.1063/1.2759678 fatcat:atzn5xi3unelldt4v7f3l2kc6q

A Modified Technique of Active Power Measurement for Industrial Frequency Applications

Satish Chandra BERA, Dhritinandan KOLE
2010 Sensors & Transducers  
A very simple design of measurement of active power for industrial frequency application is described in the paper.  ...  In this design a light emitting diode and light dependent resistor based electronic circuit has been fabricated to measure active power in terms of the DC output voltage of the circuit.  ...  of Applied Physics, University of Calcutta, for providing the facilities to carry out this work.  ... 
doaj:7f816eb119594dfea8b506f1dde4155a fatcat:zwi63plov5bbvbusreb3imwa3u

Trilateral South American Project: A Reference System for Measuring Electric Power Up to 100 kHz - Progress Report

G. A. Kyriazis, L. Di Lillo, D. Slomovitz, R. Iuzzolino, E. Yasuda, L. Trigo, R. M. Souza, H. Laiz, R.M. Debatin, E. Afonso
2018 2018 Conference on Precision Electromagnetic Measurements (CPEM 2018)  
Three countries in South America are jointly developing a reference system for measuring electric power up to 100 kHz.  ...  The objective is the construction of three similar measuring systems, one for each institute. The measuring system is described and its design requirements are presented.  ...  MEASURING SYSTEM Calibration systems for harmonic power analyzers and power quality measuring instruments generally consist of a digital generator with two independent channels (one for voltage and one  ... 
doi:10.1109/cpem.2018.8500878 fatcat:7k7cksn4trcfhisj6eyx5dbi5y

A 13.56 MHz CMOS Multi-Stage Rectifier for Wireless Power Transfer in Biomedical Applications
바이오응용 무선전력전달을 위한 13.56 MHz CMOS 다단 정류기

Hyouk-Kyu Cha
2013 Journal of the Institute of Electronics and Information Engineers  
The presented three-stage rectifier employs a cross-coupled topology to boost a small input AC signal from the external device to produce a 1.2-1.5 V output DC signal for the implant device.  ...  The designed rectifier achieves a maximum measured power conversion efficiency of 70% at 13.56 MHz under the conditions of a low 0.6-Vpp RF input signal with a 10-kΩ output load resistance.  ...  DC output from a 13.56 MHz input AC voltage signal of 600 mVp-p with an efficiency of over 60%. Ⅲ .  ... 
doi:10.5573/ieek.2013.50.3.035 fatcat:tthrqopyxfh7tfbovwu6nialru

Integrated Electric Vehicle Shunt Current Sensing System for Concurrent Revenue Metering and Detection of DC Injection

Olga Mironenko, Garrett Ejzak, Willett Kempton
2021 Energies  
Verification of DC injection by electric vehicle supply equipment can be a cost-effective extra measure to ensure power quality from a variety of plugged-in electric vehicles.  ...  The prototype does not have high power dissipation at high currents typical for shunt systems.  ...  McGee from University of Delaware for helpful discussions.The authors would also like to thank Fouad Kiamilev from University of Delaware for providing laboratory space and for valuable advice.  ... 
doi:10.3390/en14041193 fatcat:7xgtm2qxsbaplmgnu63tpmprja

Characterization of punch-through phenomenon in SiC-SBD by capacitance-voltage measurement at high reverse bias voltage

Tsuyoshi Funaki, Shuntaro Matsuzaki, Tsunenobu Kimoto, Takashi Hikihara
2006 IEICE Electronics Express  
The authors, therefore, develop C-V characteristics measurement instrumentation which enables the application of high dc bias voltages on SiC-SBD up to the rated reverse blocking voltage.  ...  This paper investigates the punch-through phenomenon in SiC Schottky Barrier Diodes (SBD) from capacitance-voltage (C-V) characteristics at high reverse bias voltage.  ...  Kashyap of the University of Arkansas (U.S.A) for some invaluable discussions.  ... 
doi:10.1587/elex.3.379 fatcat:vjmv5vmrvnfglghuj7aczjpvp4
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