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Journal articles on the topic 'Pulse Power Crowbar Switch'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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1

Subhash Joshi, T. G., and Vinod John. "Performance Comparison of ETT- and LTT-Based Pulse Power Crowbar Switch." IEEE Transactions on Plasma Science 45, no. 11 (2017): 2994–3000. http://dx.doi.org/10.1109/tps.2017.2759668.

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2

Akiyama, H., N. Shimomura, K. Takasugi, T. Miyamoto, M. Sato, and T. Tazima. "A self‐crowbar switch for a gas‐puff z‐pinch driven by a pulsed power generator." Review of Scientific Instruments 61, no. 4 (1990): 1344–46. http://dx.doi.org/10.1063/1.1141190.

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3

Verma, Rishi, J. M. V. V. S. Aravind, Pankaj Deb, et al. "Modular electromagnetic railgun accelerator for high velocity impact studies." Review of Scientific Instruments 93, no. 12 (2022): 124703. http://dx.doi.org/10.1063/5.0104365.

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A modular electromagnetic railgun accelerator facility named “RAFTAR” (i.e., Railgun Accelerator Facility for Technology and Research) has been commissioned and its performance has been characterized for high velocity impact testing on materials in a single-shot mode. In the first tests, RAFTAR demonstrated an acceleration of more than 1000 m/s for an 8 g solid aluminum-7075 armature projectile. The current fed was 220 kA, having a muzzle time of about 1.75 ms. It is a single pulse breech-fed rectangular bore (14 × 13 mm2) railgun, and its 1.15 m long barrel assembly consists of two parallel c

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4

Takasugi, K., H. Akiyama, N. Shimomura, M. Sato, and T. Tazima. "X‐ray generation from a gas‐puff z‐pinch driven by a pulsed power generator with a self‐crowbar switch." Review of Scientific Instruments 64, no. 8 (1993): 2403–4. http://dx.doi.org/10.1063/1.1143896.

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5

Kokshenev, V. A., and N. E. Kurmaev. "Formation of plasma jets by a high-current discharge in metal vapor." Journal of Physics: Conference Series 2064, no. 1 (2021): 012033. http://dx.doi.org/10.1088/1742-6596/2064/1/012033.

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Abstract Plasma sources based on high-current discharges (up to 20 kA) in vapors of an aluminum electrode material with initiation over the ceramic surface are investigated. Plasma flows with a divergence angle ≤ 20° and a pulse pressure of ~ 106 Pa were obtained. A design of a crowbar spark gap based on a plasma switch with developed plasma sources built into a magnetically insulated transmission line has been proposed and tested. A crowbar mode is implemented in the transmission line with a current of a mega-ampere level with a cut-off of the load circuit from the megajoule generator GIT-12

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6

Grainys, Audrius, Jurij Novickij, Tomaš Stankevič, Voitech Stankevič, Vitalij Novickij, and Nerija Žurauskienė. "Single Pulse Calibration of Magnetic Field Sensors Using Mobile 43 kJ Facility." Measurement Science Review 15, no. 5 (2015): 244–47. http://dx.doi.org/10.1515/msr-2015-0033.

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Abstract In this work we present a mobile 43 kJ pulsed magnetic field facility for single pulse calibration of magnetic field sensors. The magnetic field generator is capable of generating magnetic fields up to 40 T with pulse durations in the range of 0.3-2 ms. The high power crowbar circuit is used for the reverse voltage protection and pulse shaping purposes. The structure, the development challenges and the implemented solutions to improve the facility for the calibration of the magnetic field sensors are overviewed. The experimental data of the application of the proposed generator for th

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7

Zhou, Huiying, Siyang Ge, and Liang Qin. "Coordinate Fault Ride-Through Strategy for Connection of Offshore Wind Farms Using Voltage Source-Converter-Based High-Voltage Direct-Current Transmission under Single Polar Fault." Sensors 23, no. 12 (2023): 5760. http://dx.doi.org/10.3390/s23125760.

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In a system where wind farms are connected to the grid via a bipolar flexible DC transmission, the occurrence of a short-time fault at one of the poles results in the active power emitted by the wind farm being transmitted through the non-faulty pole. This condition leads to an overcurrent in the DC system, thereby causing the wind turbine to disconnect from the grid. Addressing this issue, this paper presents a novel coordinated fault ride-through strategy for flexible DC transmission systems and wind farms, which eliminates the need for additional communication equipment. The proposed strate

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8

Luo, Xiaoxiao, Qian Wang, Mingming Du, Yingkai Long, and Xiping Jiang. "The Development of Solid-state Pulse Generator based on Marx Circuit with Chopping Switch." Journal of Physics: Conference Series 2491, no. 1 (2023): 012012. http://dx.doi.org/10.1088/1742-6596/2491/1/012012.

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Abstract A solid-state pulse source is mainly formed by replacing the spark switch in a traditional pulse source with semiconductor switch device. Compared with conventional gas switch devices such as spark switches, semiconductor switch devices have the advantages of high work repetition frequency, long service life, small size, high efficiency, high reliability, easy control, and active shutdown. However, there are still problems, such as the solid-state switch being easily broken down by high voltage, the rising and falling edges of the pulse being slow, and the loss is enormous. In this pa

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9

Meena, B. L., M. S. Tyagi, S. S. P. Rao, et al. "Pseudospark switch development for pulse power modulators." Journal of Physics: Conference Series 114 (May 1, 2008): 012057. http://dx.doi.org/10.1088/1742-6596/114/1/012057.

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10

Zhang, Xiang Jin, and Na Shen. "Pulse Power Supply Control System." Applied Mechanics and Materials 130-134 (October 2011): 2143–46. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.2143.

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A novel pulse power supply charge and discharge automation control program is proposed. The program is based on optical encoder communication mode power supply switch trigger technology. According to the requirements of control system and through the analysis of high power charge and discharge characteristics of pulse power, the whole design for the control system (multiple channels) is completed.

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11

Wu, Liang, Yong Yang, and Zhong Kui Zhu. "A New Technology of Pulse by Pulse for NPC Three-Level Inverters." Advanced Materials Research 765-767 (September 2013): 2489–93. http://dx.doi.org/10.4028/www.scientific.net/amr.765-767.2489.

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When Neutral Point Clamped (NPC) three-level photovoltaic grid-connected inverter is overloaded or in short state, the control by software could not judge immediately, but the power switch components of the inverter would be broken. The technology of Pulse by Pulse is an important method to protect the power switch components. This paper studies the principle of traditional technology of Pulse by Pulse, then analyzes a new technology of Pulse by Pulse based on Complex Programmable Logic Device (CPLD), finally a 3KW NPC three-level grid-connected inverter is set up with the new technology of Pu

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12

Ye Yueshun, 叶岳顺, 申高 Shen Gao, and 郑建 Zheng Jian. "Study of Q Switch Laser Pulse Power Test." Applied laser 34, no. 4 (2014): 337–40. http://dx.doi.org/10.3788/al20143404.0337.

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13

Ye Yueshun, 叶岳顺, 申高 Shen Gao, and 郑建 Zheng Jian. "Study of Q Switch Laser Pulse Power Test." APPLIED LASER 34, no. 4 (2014): 337–40. http://dx.doi.org/10.3788/al20143404.337.

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14

Jukna, A. "Superconducting switch for high power pulse antenna excitation." Le Journal de Physique IV 11, PR11 (2001): Pr11–151—Pr11–155. http://dx.doi.org/10.1051/jp4:20011124.

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15

Seetawan, Tosawat. "Possibility of Thermoelectric Oxide for Thermal Sensors." Key Engineering Materials 675-676 (January 2016): 601–6. http://dx.doi.org/10.4028/www.scientific.net/kem.675-676.601.

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The thermoelectric effects in oxide materials are developed to the Seebeck effect for thermal sensing. Thermal sensors are the thermal converters, in which an electrical, magnetic, mechanical, radiation, chemical signal are measured by converting it into heat and measuring the resulting temperature changes in the device. This proposes an analysis the electrical converters and radiation sensors by using single−junction of p−Ca3Co4O9 and n−CaMnO3 materials are presented into possible thermal sensing. Several thermal converters are measured the signal electrical resistivity, and Seebeck coefficie

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16

Yang, Jia Zhi, Fei Yang, Sheng Li Yi, Cun Bo Jiang, Xing Ming Fan, and Fan Yang. "Simulative and Experimental Research of High Isolate High Voltage Pulsed Power Supply." Applied Mechanics and Materials 321-324 (June 2013): 1429–33. http://dx.doi.org/10.4028/www.scientific.net/amm.321-324.1429.

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A high amplitude, fast rising time, and high isolating strength trigger signal is needed for triggering spark gap switch. A high voltage power supply scheme was verified by means of simulation in this paper. Proper parameters of power supply circuit were selected according to the simulation result. Finally, a pulsed power supply was developed. The experimental results show that a negative pulse with 25 kV isolating strength and 15 kV amplitude can be generated by the power supply, and this generated negative pulse can meet the demand of triggering spark gap switch.

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17

Wang, Qin. "Integrated Nine-Switch Power Converter Based on Discontinuous Pulse-Width Modulation." Applied Mechanics and Materials 214 (November 2012): 71–75. http://dx.doi.org/10.4028/www.scientific.net/amm.214.71.

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This paper evaluates the shortcomings of the application experience before nine-switch the newly proposed converter. A better understanding of development, the conclusion is, nine-switch converter is not an attractive option "alternative of two consecutive converter parallel of the bridge. Instead, nine-switch converter is more suitable for replace back-to-back inverter in" series-shunt "of the system, in a good example is the unified power quality conditioner.

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18

Wang Ling-Yun, Liu Hong-Wei, Yuan Jian-Qiang, et al. "Research on Various Operating Modes of Optically Controlled Multi-Gate Thyristors." Acta Physica Sinica 74, no. 5 (2025): 0. https://doi.org/10.7498/aps.74.20241608.

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To meet the switching requirements of high-frequency pulse power systems and further enhance the peak power and turn-on speed of solid-state switches, comparative experimental studies were conducted on the structure of optically controlled multi-gate thyristors and the parameters of injected light. The research found that semiconductor chips based on the multi-gate thyristor structure exhibited different conduction characteristics under varying laser injection conditions, resulting in unique inflection point curves. By establishing a switching model and varying the injected light parameters an

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19

Rong, Li, and Qi Rong. "Research on pulse power based on saturable pulse transformer and magnetic switch." Journal of Engineering 2018, no. 10 (2018): 1384–88. http://dx.doi.org/10.1049/joe.2018.5026.

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20

Nan, Qiu, and Fan Yin Hai. "Digital Controlled High Power Mid-Frequency Pulsed Power Supply." Advanced Materials Research 108-111 (May 2010): 1332–37. http://dx.doi.org/10.4028/www.scientific.net/amr.108-111.1332.

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In this article a novel scheme of high power mid-frequency pulse power supply is proposed. The supply is made up of two major stages. First stage is dual interleaved buck chopper stage in order to make the DC bus and output pulse voltage controllable. Second stage is a inverter converting the DC voltage into a series of square AC voltage pulse. IGBT module(300A-1200V) is used as the main switch device for the proposed supply is a high power application. As we know large capacity power IGBT module can hardly work as high as 40Khz[1], so to solve this problem, interleaved control scheme is incor

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21

You, Meng-Ran, Shu-Lin Liu, and Dan-Dan Xu. "Design and Implementation of a Spark Pulse Power Control Device for Intrinsically Safe Circuits." Journal of Nanoelectronics and Optoelectronics 19, no. 11 (2024): 1148–55. https://doi.org/10.1166/jno.2024.3674.

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This paper presents the study and design of a control device capable of adjusting and monitoring spark pulse power and pulse width time. This device aids in the experimental analysis of spark discharge ignition mechanisms and explores the relationship between the spark power, discharge time, and energy. The device comprises two stages. The first stage employed a forward converter as the main topology. By using a controller to set an adjustable reference voltage and incorporating current-mode feedback control, it achieves a wide range of adjustable output voltage, providing the necessary voltag

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22

Li, Wei Bo, Wang Xin, Quan Feng, Wei Chao Li, and Zhao Long Sun. "Some Considerations of the Pulse Power Switch Centered on Thyristor Device." Applied Mechanics and Materials 336-338 (July 2013): 60–64. http://dx.doi.org/10.4028/www.scientific.net/amm.336-338.60.

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For high energy short pulse discharge applications, like electromagnetic launchers or magnetic forming, mostly the thyristor technology is used. The presented thyristor switch assemblies using 125 mm wafer size are made to switch 62.4MJ stored energy into a load in very short time. The maximum transient peak current of 26 kilo-amperes peak for 20 ms with convection water and air cooling. For this presentation we concentrate on the Thyristor technology as this offer the highest current capability but are not in the position to switch-off any current. Some measures must be used to the pulse swit

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23

Baginski, Thomas A., Robert N. Dean, and Ed J. Wild. "A Micromachined Robust Planar Triggered Sparkgap Switch for High Power Pulse Applications." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2010, DPC (2010): 001869–86. http://dx.doi.org/10.4071/2010dpc-wp24.

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High voltage (HV) switches capable of operating at high speeds with high current levels are used in a variety of applications in commercial and government systems. Examples of HV switches include triggered sparkgap, dielectric breakdown, and mercury vapor switches. The triggered sparkgap switch is a three-element, gas-filled, ceramic-to-metal, hermetically sealed, pressurized switch that operates in an arc discharge mode. Triggered sparkgaps have been in use for many years, providing precision timing and activation of in-flight functions such as missile stage separation. These applications inv

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24

Voitenko, N. V., A. S. Yudin, N. S. Kuznetsova, and V. D. Bochkov. "Experience of Pseudospark Switch Operation in Pulse Power Applications." Journal of Physics: Conference Series 652 (November 5, 2015): 012059. http://dx.doi.org/10.1088/1742-6596/652/1/012059.

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25

Baginski, Thomas A., Robert N. Dean, and Steven P. Surgnier. "A New Robust One-Shot Switch for High-Power Pulse Applications." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2011, DPC (2011): 001650–73. http://dx.doi.org/10.4071/2011dpc-wp21.

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High Voltage (HV) switches capable of operating at high speeds and over a wide range of voltages and energies are used in a variety of pulse power applications in material science and plasma physics. Of particular interest is the use of small-scale capacitor discharges to measure the electrical properties of materials as they are heated from solid through liquid to a gas phase. In a capacitive discharge unit (CDU), energy stored in a capacitor is coupled through a switch into a low-impedance transmission line, which typically terminates with a thin sample of material. The energy coupled to the

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26

Gao, Jingming, Song Li, Hanwu Yang, et al. "A novel compact solid-state high power pulse generator based on magnetic switch and square waveform pulse transformer." Review of Scientific Instruments 94, no. 1 (2023): 014707. http://dx.doi.org/10.1063/5.0110453.

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The high power pulse generators have been widely used in high power microwave generation and plasma physics research. In this paper, a novel compact solid-state high power pulse generator is studied, numerically and experimentally. The generator is mainly composed of the primary energy supply, the magnetic pulse compressor, the Blumlein type low-impedance pulse forming network, and the square waveform pulse transformer. Especially, design considerations for a solid-state high power pulse generator are proposed. Experimental results show that pulses with a peak power of 2 GW, a duration of 150

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27

Zhang, Ruihuan, Yu He, Yong Zhang, et al. "Ultracompact and low-power-consumption silicon thermo-optic switch for high-speed data." Nanophotonics 10, no. 2 (2020): 937–45. http://dx.doi.org/10.1515/nanoph-2020-0496.

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AbstractUltracompact and low-power-consumption optical switches are desired for high-performance telecommunication networks and data centers. Here, we demonstrate an on-chip power-efficient 2 × 2 thermo-optic switch unit by using a suspended photonic crystal nanobeam structure. A submilliwatt switching power of 0.15 mW is obtained with a tuning efficiency of 7.71 nm/mW in a compact footprint of 60 μm × 16 μm. The bandwidth of the switch is properly designed for a four-level pulse amplitude modulation signal with a 124 Gb/s raw data rate. To the best of our knowledge, the proposed switch is the

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28

He, Yi Hong, and Shui Yong Yu. "Research on a New Type of Plating Power Supply." Applied Mechanics and Materials 513-517 (February 2014): 3518–21. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.3518.

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Viewing the problems of lower power factor, high harmonic content, lots of switch losses in tubes of lagging bridge arm when using FB-ZVS-PWM converter in plating power supply, this paper applied the three-level PWM rectifier technology to electroplating power supply, A new converter has been researched. Both different converters have also been compared and analyzed. Phase shift pulse generator and simulation models have been established in Matlab/Simulink. The results show that the PS-FB-ZVZCS PWM converter is more suitable for plating power supply, phases of current and voltage are synchrono

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29

Feng, Jiacheng, Jun Ma, ZaiYan Gong, Di Kang, and Chao Wang. "Design of Multi-threshold Acceleration Switch Based on Matlab." MATEC Web of Conferences 232 (2018): 04026. http://dx.doi.org/10.1051/matecconf/201823204026.

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Acceleration switch can trigger switches according to the variation of external acceleration without complex control system and circuit. With the excellent characteristics of integration of sensor and actuator, zero power consumption and high reliability, multi-threshold acceleration switch has great application value in the fields of vehicle safety, aerospace and industrial equipment. In order to reduce the complexity of the measurement system and improve the reliability, we realized the design of a multi-threshold and anti-overloading acceleration switch which can distinguish specific pulse

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30

Cai, Linglong, Bin Tai, Jiangnan Liu, et al. "Development of All Solid State Nanosecond Pulse Transformer Fault Detection Device Based on Marx Circuit." Journal of Physics: Conference Series 2774, no. 1 (2024): 012073. http://dx.doi.org/10.1088/1742-6596/2774/1/012073.

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Abstract a nanosecond pulse generator with a fast leading edge for transformer fault diagnosis is developed. The device is composed of a full solid-state nanosecond pulse generator based on Marx circuit and with a tail cut switch and a field programmable logic gate array (FPGA) device. Among them, the nanosecond pulse source is mainly composed of DC power supply, control circuit and main circuit. The main circuit is a 9-level modular Marx circuit, using MOSFET as the main switch and tail cut switch; The control circuit generates a synchronous trigger pulse signal, which drives the MOSFET to wo

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31

Yu, Wen Bing, and Chen Pen He. "The Narrow Pulse-Width Laser-Diode End-Pumped Nd:Yvo4/Lbo Green Laser." Applied Mechanics and Materials 26-28 (June 2010): 1200–1203. http://dx.doi.org/10.4028/www.scientific.net/amm.26-28.1200.

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A high stable 9.2W and 12.06 ns pulse-width acousto-optic Q- switch solid- state green laser was reported. Through theoretical analysis and experimental research , the resonator was designed and optimized in order to compress pulse-width. In experiment , the double acousto-optic Q- switch was employed with single Nd:YVO4 rod and LBO crystal was applied for frequency doubling. The resonator is the flat-concave type. Under the pumping current of 30A ,a maximum green power of 9.2W was generated at 40kHz repetition rate and 8.164 ns pulse-width.

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32

Yang, Hanwu, Zicheng Zhang, Jingming Gao, Tao Xun, and Song Li. "A Repetitive Low Impedance High Power Microwave Driver." Electronics 11, no. 5 (2022): 784. http://dx.doi.org/10.3390/electronics11050784.

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A low impedance high power microwave (HPM) driver is designed, which can be used in studying multi-gigawatt HPM devices such as the magnetically insulated transmission line oscillator (MILO), based on a helical pulse forming line (PFL) and the Tesla pulse transformer technology. The co-axial PFL is insulated by ethanol–water mixture, whose dielectric constant can be adjusted; and the helical line increases the output pulse width as well as the impedance to make a better match with the load. By the optimal combination of PFL charging voltage and output switch working voltage, the reliability of

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33

Yin, Jingbo, Xing Liu, Xunde Guo, and Lianwang Gudsla. "Software Optimization of Welding Machine Motion System Based on Switch Control Algorithm." Mobile Information Systems 2022 (June 22, 2022): 1–6. http://dx.doi.org/10.1155/2022/1271190.

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In order to improve the software optimization of welding machine motion system based on switch control algorithm. Based on soft switch arc welding power source current peak control the stability of the BUCK converter, the method by solving peak current control circuit transfer function, and to analyze the formation mechanism of soft switch arc welding power source external characteristic, the frequency of pulse current in the simulation model is set to 200 Hz, the base value of pulse current is 40 A, the peak value of pulse current is 500 A, and the duty cycle is 40%. The welding wire melting

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34

Petrov, A. V., S. K. Pavlov, and Y. P. Usov. "Formation of high-power, high-voltage rectangular pulses with the controlled stabilization of the pulse peak." Laser and Particle Beams 35, no. 1 (2017): 154–58. http://dx.doi.org/10.1017/s0263034617000027.

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AbstractThe pulse shaper based on a capacitive storage device with an active switch operating on a resistive load is considered. The electrical circuit includes a capacitor with a reference voltage for the stabilization of peak of the pulse. The capacitor connected in parallel with a load via the unilateral conductive switch. A general analysis of the shaping circuit was carried out. Analytical expressions for determination of the stabilization accuracy and the stabilization duration have been obtained. The results of computer simulation of dependence of these characteristics as function of pu

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35

Palanisamy, Ramasamy, Vakesan Kalyanasundaram, Govindaraj Vijayakumar, Venkatarajan Shanmugasundaram, chattopadhyay Saumitra, and Sugavanam Vidyasagar. "A novel SVPWM for 3-phase to 5-phase conversion using matrix converter." International Journal of Power Electronics and Drive Systems 13, no. 4 (2022): 2269~2276. https://doi.org/10.11591/ijpeds.v13.i4.pp2269-2276.

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A novel matrix converter has been developed for 3-phase to 5-phase conversion using a novel space vector pulse width modulation. The matrix converter organized to generate 5-phase AC output voltage from 3-phase input voltage with help of SVPWM method; bidirectional power switches placed in matrix converter controlled by appropriate switching pulse. Space vector pulse width modulation (SVPWM) provides better utilization of applied input voltage, improved output voltage, reduced total harmonic distortion. The bidirectional switch used by the matrix converter decreases stress on the power switch

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36

Korotkov, S. V., Yu V. Aristov, and A. L. Zhmodikov. "High-Power Pulse Devices for Studying Reverse Switch-On Dynistors." Instruments and Experimental Techniques 65, no. 3 (2022): 398–403. http://dx.doi.org/10.1134/s0020441222030095.

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37

Baginski, T. A., and K. A. Thomas. "A Robust One-Shot Switch for High-Power Pulse Applications." IEEE Transactions on Power Electronics 24, no. 1 (2009): 253–59. http://dx.doi.org/10.1109/tpel.2008.2005411.

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38

Butkus, Paulius, Sonata Tolvaišienė, and Sebastjanas Kurčevskis. "Validation of a SPICE Model for High Frequency Electroporation Systems." Electronics 8, no. 6 (2019): 710. http://dx.doi.org/10.3390/electronics8060710.

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In this paper, we present an analysis and a validation of a simulation program with integrated circuit emphasis (SPICE) model for a pulse forming circuit of a high frequency electroporation system, which can deliver square-wave sub-microsecond (100–900 ns) electric field pulses. The developed SPICE model is suggested for use in evaluation of transient processes that occur due to high frequency operations in prototype systems. A controlled crowbar circuit was implemented to support a variety of biological loads and to ensure a constant electric pulse rise and fall time during electroporation to

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39

M.Revathi, S., C. R.Balamurugan, and N. Shanmugasundaram. "Space Vector Pulse Width Modulation Method to Reducing a Switching Loss in Inverter." International Journal of Engineering & Technology 7, no. 2.25 (2018): 160. http://dx.doi.org/10.14419/ijet.v7i2.25.20498.

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In This paper proposed an area space vector PWM technique that reduces switch victims of an electrical converter mainly efficiently by two-phase modulation technique. This technique chooses the most favorable one that minimizes a replacement switch (SW) defeat judgment supported lessening belongings in switch period allowing for section currents in numerous lessening patterns. This paper proposes an basic curved PWM technique . The planned technique created it attainable to scale back range of switch of the biggest or second major present section . And it will mechanically acclimatize to weigh

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40

HATAMI, MOHSEN, ROYA ATTARZADEH, and ABDOLRASOUL GHARAATI. "DESIGN OF AN ULTRA-FAST ALL-OPTICAL DARK SOLITON SWITCH IN A THREE-CORE NONLINEAR DIRECTIONAL COUPLER (TNLDC) MADE OF CHALCOGENIDE GLASSES." Journal of Nonlinear Optical Physics & Materials 21, no. 03 (2012): 1250038. http://dx.doi.org/10.1142/s0218863512500385.

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We designed and simulated a three-core nonlinear directional coupler (TNLDC) dark soliton switch. We have optimized the optical properties of chalcogenide glasses such as their high nonlinear refractive index and negative group velocity dispersion and designed a switch having a length of 7 cm and an ultra-fast pulse width of 10 fs with a 100 W power input pulse. The switching characteristic shows that complete switching is possible for different ranges of lengths and pulse widths, and by using the result of the simulation we find a relation between the length and the pulse width with respect t

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41

KOROVIN, SERGEI D., IVAN K. KURKAN, SERGEY V. LOGINOV, et al. "Decimeter-band frequency-tunable sources of high-power microwave pulses." Laser and Particle Beams 21, no. 2 (2003): 175–85. http://dx.doi.org/10.1017/s0263034603212052.

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This article describes S-band sources of high-power microwave (HPM) pulses: a resonant backward wave oscillator (BWO) producing ∼5-GW, 100-J pulses, based on the SINUS-7 electron accelerator, and a double-section vircator with a peak power of ∼1 GW and a pulse width of 20–50 ns, powered from either the SINUS-7 accelerator or the MARINA inductive-store pulse driver with a fuse opening switch.

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Ramasamy, Palanisamy, Kalyanasundaram Vakesan, Vijayakumar Govindaraj, Shanmugasundaram Venkatarajan, Saumitra Chattopadhyay, and Vidyasagar Sugavanam. "A novel SVPWM for 3-phase to 5-phase conversion using matrix converter." International Journal of Power Electronics and Drive Systems (IJPEDS) 13, no. 4 (2022): 2269. http://dx.doi.org/10.11591/ijpeds.v13.i4.pp2269-2276.

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<span>A novel matrix converter has been developed for 3-phase to 5-phase conversion using a novel space vector pulse width modulation. The matrix converter organized to generate 5-phase AC output voltage from 3-phase input voltage with help of SVPWM method; bidirectional power switches placed in matrix converter controlled by appropriate switching pulse. Space vector pulse width modulation (SVPWM) provides better utilization of applied input voltage, improved output voltage, reduced total harmonic distortion. The bidirectional switch used by the matrix converter decreases stress on the p

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Genoud, J., E. L. Claveau, S. K. Jawla, et al. "Generation of nanosecond THz pulses using a high gain ring resonator with a semiconductor switch." Applied Physics Letters 121, no. 4 (2022): 044101. http://dx.doi.org/10.1063/5.0098718.

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A [Formula: see text] quasi-optical ring resonator consisting of an input coupler and three mirrors has been designed and tested. A low-loss silicon wafer in the ring provides output coupling of the stored power when irradiated by a pulse from a [Formula: see text] laser. The ring created [Formula: see text] output power pulses when excited by a [Formula: see text] continuously operating input source, achieving a power gain of 16. In a fully tuned ring, higher gain is achievable. If the ring was used with a pulsed input source having a pulse length of several times the fill time, the ring coul

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Janke, Włodzimierz. "Averaged models of pulse-modulated DC-DC power converters. Part I. Discussion of standard methods." Archives of Electrical Engineering 61, no. 4 (2012): 609–31. http://dx.doi.org/10.2478/v10171-012-0045-8.

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Abstract The averaged models of switch-mode DC-DC power converters are discussed. Two methods of averaged model derivation are considered - the first, based on statespace averaging and the second, on the switch averaging approach. The simplest converters: BUCK, BOOST and BUCK-BOOST working in CCM (continuous conduction mode) or DCM are taken as examples in detailed considerations. Apart from the ideal converters, the more realistic case of converters with parasitic resistances is analyzed. The switch averaging approach is used more frequently than the other and is believed to be more convenien

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Toma, Emanoil, and Carmen Mihaela Simion. "Improving Electrical Efficiency of Edm Power Supply." ACTA Universitatis Cibiniensis 64, no. 1 (2014): 88–93. http://dx.doi.org/10.2478/aucts-2014-0016.

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Abstract This paper briefly presents the principal types of Pulse Generators for Electrical Discharge Machining and ways to improve electrical efficiency. A resonant converter with series-parallel LCC circuit, for EDM applications, was analyzed by PSpice simulation. The performances of EDM Power Supply were improved by adding an energy recovering - voltage limiter circuit. The shape of current pulse was changed by adding a supplementary MOSFET Switch in parallel with the gap. Two or more converters can be parallelized, in this way output current can be changed. A bloc-schema was conceived for

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Jiang, Qiang. "The Design of 25KV High-Frequency High-Voltage Power Supply." Advanced Materials Research 912-914 (April 2014): 927–30. http://dx.doi.org/10.4028/www.scientific.net/amr.912-914.927.

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In this paper, a HV and HF switch power supply was designed, which was controlled through a single chip microcomputer, also the MOSFET was used as the switch power tube. The PWM (pulse width modulation) technique and half-bridge inverter topology have been used to invert AC into the DC that can be adjust from 0V~25KV and the operating frequency is 35KHz, Through the simulation with the Saber software and practical use, the feasibility of the scheme and the correctness of the design have been verified.

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Salau, Ayodeji Olalekan, Candidus U. Eya, and Omeje Crescent Onyebuchi. "Nonzero Staircase Modulation Scheme for Switching DC-DC Boost Converter." Journal of Control Science and Engineering 2020 (July 18, 2020): 1–15. http://dx.doi.org/10.1155/2020/8347462.

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This paper presents a novel modulation scheme known as the nonzero staircase modulation scheme for switching DC-DC boost converters. This modulation scheme generates two distinct pulse trains/firing signals when a 50 Hz nonzero staircase modulating signal is compared with a 1.5 kHz triangular wave signal. Unlike the conventional modulation schemes, the proposed novel modulation scheme provides two distinctive trains of pulse-width modulated signals for mitigating low and high harmonics. It also possesses 0.56% total harmonic distortions (THD) of the output voltage waveform system, a power outp

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Srinivasan, P., and K. Arulvendhan. "An Enhanced Low Voltage Ride-Through Control Scheme for DFIG-Based Grid-Integrated Wind Energy Conversion Systems: Environmental Impact Analysis." FMDB Transactions on Sustainable Environmental Sciences 1, no. 3 (2024): 161–72. https://doi.org/10.69888/ftsess.2024.000302.

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Over recent years, several nations have set up wind turbine generating systems (WTGS). Changing wind speeds, however, causes varying produced energy. Power generation and losses associated with wind turbo change concerning wind speed. Doubly Fed Induction Generator (DFIG) is the only machine that can produce power at constant speed. However, DFIG is oversensitive to grid faults, which leads to Bidirectional converters and DC-link capacitor failures due to high inrush current and over-voltage. Therefore, protection strategies should be adopted to prevent DFIG from faulting the grid. Voltage dip

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Chen, Jianbin, Fuqiang Yao, Jiang Zhang, and Zhihu Wei. "An Equal-Area Criterion Based Pulse Encoding Strategy for RF Switch-Mode Power Amplifier." Frequenz 73, no. 1-2 (2019): 53–62. http://dx.doi.org/10.1515/freq-2018-0071.

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Abstract A novel pulse encoding strategy for RF switch-mode power amplifier (SMPA) is proposed in this paper to achieve benefits of multi-level delta-sigma modulators (DSM) while alleviating challenges that multi-level DSM brings to SMPA. The pulse encoder consists of a multi-level delta-sigma modulators (DSM) followed by a level transformation module (LTM). Based on the equal-area criterion, LTM directly maps the multi-level DSM pulse train into a binary pulse train which enables a simple system configuration. The feasibility and effectiveness of proposed strategy are verified by numerical si

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Yin, Xiao Dong, Chun Yang Jiang, Min Lei, Sheng Guo Xia, and Feng Zhou. "Research of Influence of Negative Voltage at Capacitance of Pulse Transformer of Pulse Power Generator." Applied Mechanics and Materials 347-350 (August 2013): 1510–14. http://dx.doi.org/10.4028/www.scientific.net/amm.347-350.1510.

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Energy storage capacitance is necessary part of pulse power generator. Generally, it is difficult to match the equivalent capacitance in high voltage side and energy storage capacitance in low voltage side of the pulse transformer. Resultantly, it requires high flow capability of switch device. In this paper, three methods are presented to solve this problem based on reasons of overcurrent. The results of simulation and experiments show that the efficiency of generator was higher with the method of thyristor and inductance in reverse parallel, and this method would be the most effective resolu

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