Results 221 to 230 of about 1,219 (265)

The Effect of Gas Pressure in the Electric Bulb on the Polarity of the Rectified Current

Journal of Applied Physics, 1952
In sequel to the experiment by Ch'en and Liu (see reference 2) that a rectified current was derivable from the surface of the bulb when the bulb was coated with Chinese ink and was run by alternating current, the following points were observed with 220-v bulbs: (1) When the nitrogen pressure inside the bulb was more than a hundred mm Hg, the polarity ...
Shang-yi Ch'en, Wei-cheng Li
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Varying load big electric current rectifier autocontrol method study

2008 3rd IEEE Conference on Industrial Electronics and Applications, 2008
In this paper, a novel control scheme of the application of PWM method in the rectifier power source control is proposed. The proposed method is to control the rise, or fall in current and some switch signals, which are affected by the varying load.
null Qin Xiaoli, null Guo Yanqing, null Qi Zaikang, null Wang Rui, null Liang Sheng   +4 more
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Synchronizing Properties of Impulse-Current Controlled Electric Drive of Coordinated Rotation in the Circuit of Electrically Coupled Rectifiers of the Rotor

2020 IEEE Problems of Automated Electrodrive. Theory and Practice (PAEP), 2020
Analytical dependences the equalizing current and the rotor slip differences vs the electric drive parameters are obtained. We established that the rotational speeds mismatch in the circuit to be considered is 2-2.5 times less than in the case the motors are operated in compliance with their natural characteristics.
Petro Andrienko, Danil Andrienko, Andrey Andrienko, Olga Nemykina, Olexander Blyzniakov   +4 more
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Electric Current Rectifying Device That Is Completely in Liquid State: A Theoretical Proposal

ECS Meeting Abstracts, 2015
In recent years there has been an increasing interest in the development of electronic devices using non-conventional soft matter materials, as a novel alternative to traditional solid state electronic devices. These traditional solid state devices are fragile and usually are made of non-biocompatible materials.
Guillermo Ivan Guerrero-Garcia, Kalyan Raidongia, Jiaxing Huang, Monica Olvera de la Cruz   +3 more
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Determination of Potassium Anomalous Rectifying Currents by Analysis of Electrical Cardiac Signals

Biomedical Engineering, 2018
This article describes the determination of potassium anomalous rectifying currents by analysis of electrical cardiac signals in reverse electrocardiography. Contemporary cardiodiagnostic systems include algorithms and methods for noninvasive investigation of the electrophysiological properties of the heart.
O. N. Bodin, V. G. Polosin, A. F. Rakhmatullov, F. K. Rakhmatullov   +3 more
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Emergency operation processes in the thyristor rectifier of an alernating current electric locomotive

Russian Electrical Engineering, 2016
In an electric locomotive, the failure of any element or unit of the control system does not have to cause damage to power circuits or emergency operation. A control strategy for a four-zone ac–dc power converter with a discharge diode branch, which is connected in parallel to the rectified current circuit, is proposed.
S. V. Vlas’evskii, O. V. Mel’nichenko, O. A. Malysheva   +2 more
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Active fault-current foldback control in thyrister rectifier for DC shipboard electrical system

2015 IEEE Electric Ship Technologies Symposium (ESTS), 2015
Next generation shipboard power system is moving toward medium-voltage dc (MVdc) architecture. Thyristor rectifier integrated turbine-generator system provides the dc power to the MVdc distribution bus. Active foldback via firing-angle control can be implemented in the thyristor rectifier to protect the system from short-circuit fault, thereby ...
Dong Dong, Yan Pan, Rixin Lai, Xinhui Wu, Konrad Weeber   +4 more
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Analysis of current drawn by the voltage-source active rectifier from the electricity network

2013 4th International Youth Conference on Energy (IYCE), 2013
This paper deals with analysis of the current drawn from the grid by the voltage-source active rectifier. These converters are designed and controlled so that the current drawn from the grid approaches sine wave and power factor approaches one. Analytical calculations of harmonic analysis of this current based on the Fourier series are performed on a ...
T. Josefova, V. Kus
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Inwardly rectifying Kir2.1 currents in human β-cells control electrical activity: Characterisation and mathematical modelling

Biochemical and Biophysical Research Communications, 2015
Pancreatic β-cells fire action potentials as do cardiac cells and neurons, and electrical activity plays a central role in glucose-stimulated insulin secretion, which is disturbed in diabetes. The inwardly rectifying Kir2.1 potassium channels (KCNJ2 gene) control cardiac electrical activity by stabilising the interspike interval.
RIZ, MICHELA, Braun, Matthias, Wu, Xichen, PEDERSEN, MORTEN GRAM   +3 more
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Research on the Instantaneous Current Control of PWM Rectifier for Electric Locomotive Auxiliary Converter

2016
According to the application requirements of the PWM rectifier in the auxiliary converter system of electric locomotive, the working principle and working condition of the model are analyzed, and the relevant switching functions are established. This paper briefly introduces the current control of PWM rectifier and the digital phase-locked loop (PLL ...
Chunlei Wang, Rui Wang, Changan Tian, Guangtai Chen   +3 more
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