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Artigos de revistas sobre o tema "Nanosecond high-Voltage generator"

Autor: Grafiati

Publicado: 7 de setembro de 2024

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1

Pang Lei, 庞磊, 陈纲亮 Chen Gangliang, 何堃 He Kun, 任保忠 Ren Baozhong e 张乔根 Zhang Qiaogen. "Compact repetitive high voltage nanosecond pulse generator". High Power Laser and Particle Beams 24, n.º 4 (2012): 898–902. http://dx.doi.org/10.3788/hplpb20122404.0898.

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2

Gorbachev, K. V., Yu I. Isaenkov, A. V. Klyuchnik, V. I. Mizhiritskii, V. M. Mikhaylov, E. V. Nesterov e V. A. Stroganov. "A Repetitive High-Voltage Nanosecond Pulse Generator". Instruments and Experimental Techniques 62, n.º 3 (10 de junho de 2019): 340–42. http://dx.doi.org/10.1134/s0020441219020180.

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3

Yao, Xue Ling, Tian Yu Lin e Jing Liang Chen. "Research for High-Voltage Nanosecond Rectangular Pulse Generator". Advanced Materials Research 718-720 (julho de 2013): 1691–95. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.1691.

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In order to calibrate the response characteristic of voltage dividers, the article presents a potable high-voltage nanosecond rectangular pulse generator based on the transmission-line theory. The generator consists of DC high-voltage source, pulse forming line (PFL), special high-voltage switch, pulse transmission line (PTL), resistive load and coaxial voltage divider. The compact charging and discharging circuit is developed coaxially and the interference proof performance is excellent. The voltage amplitude and the pulse width can vary from the output of the DC high-voltage source and the length of PFL respectively. In the article the theory of pulse forming process, the design and the key devices of the generator are investigated theoretically and experimentally. The experimental results demonstrate that the generator can meet the measurement demands and export well-defined rectangular pulses with the rise time less than 751.738ps and the voltage amplitude up to 2kV.

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4

Korotkov, S. V., Yu V. Aristov e A. L. Zhmodikov. "A High Voltage Diode-Transistor Generator of Nanosecond High Voltage Pulses". Instruments and Experimental Techniques 63, n.º 1 (janeiro de 2020): 53–57. http://dx.doi.org/10.1134/s0020441220010042.

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5

Gamaleev, Vladislav, Naohiro Shimizu e Masaru Hori. "Nanosecond-scale impulse generator for biomedical applications of atmospheric-pressure plasma technology". Review of Scientific Instruments 93, n.º 5 (1 de maio de 2022): 053503. http://dx.doi.org/10.1063/5.0082175.

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This study proposes an improved high-voltage fast impulse generator based on an inductive energy storage system with a 4 kV static induction thyristor. Nanosecond-scale impulses with pulse widths below 100 ns and a peak voltage of up to 15 kV can be generated by modifying the high-voltage transformer in the circuit and tuning the circuit capacitor. The resulting device is highly stable and can perform continuously if the discharge parameters are chosen within the recommended range. A plasma jet was operated using the generator at low temperature (below 37 °C). Together with its high stability and potential for continuous operation, the proposed generator offers promise for use in biomedical and agricultural applications. Furthermore, the nanosecond-scale high-voltage impulses produced by the generator enable it to achieve an electron density in the plasma one order of magnitude higher than the commercially available radio frequency plasma jet analog. We also show how to reduce the total cost of the generator.

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6

Gubanov, V. P., S. D. Korovin, I. V. Pegel, A. M. Roitman, V. V. Rostov e A. S. Stepchenko. "Compact 1000 pps high-voltage nanosecond pulse generator". IEEE Transactions on Plasma Science 25, n.º 2 (abril de 1997): 258–65. http://dx.doi.org/10.1109/27.602497.

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7

Sun, Jinru, Qin Qing, Haoliang Liu, Xueling Yao, Zijiao Jiao e Yiheng Wu. "A Compact High-Stability Nanosecond Pulse Test System Using Corona-Stabilized Switch and Coaxial Resistance Divider". Energies 16, n.º 11 (5 de junho de 2023): 4534. http://dx.doi.org/10.3390/en16114534.

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Due to the lack of a standard nanosecond high-voltage pulse generator for sensor calibration, a high-stability nanosecond high-voltage pulse test system was developed in terms of circuit analysis, structural design, and performance test. By establishing the equivalent circuit model of the nanosecond pulse generator, the circuit component parameters of the five-stage Marx loop and the one-stage compression steepening unit were simulated. The influence of the action performance of the steepening gap on the characteristics of output nanosecond pulse was analyzed. The nanosecond pulse test system was established through the structural design of the nanosecond pulse-generating circuit, the development of a high-performance corona-stabilized switch, and the measurement of a fast-response resistance divider made of metal oxide thin-film resistors. The nanosecond pulse test system has the capability to output a double exponential nanosecond pulse voltages in the amplitude range of 10–60 kV with a rise time of 2.3 ± 0.5 ns and a half-peak time of 23 ± 5 ns. In addition, the output pulse voltage has a high consistency and stability in the full amplitude range. The maximum relative standard deviation of the peak value is 1.517%, and the relative standard uncertainty is less than 5‰.

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8

Voronkov, V. B., I. V. Grekhov, A. K. Kozlov, S. V. Korotkov e A. L. Stepanyants. "A high-frequency semiconductor generator of high-voltage nanosecond pulses". Instruments and Experimental Techniques 50, n.º 3 (maio de 2007): 353–55. http://dx.doi.org/10.1134/s0020441207030098.

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9

Voronkov, V. B., I. V. Grekhov, A. K. Kozlov, S. V. Korotkov, A. L. Stepanyants e D. V. Khristyuk. "A high-frequency semiconductor generator of high-voltage nanosecond pulses". Instruments and Experimental Techniques 50, n.º 3 (maio de 2007): 356–58. http://dx.doi.org/10.1134/s0020441207030104.

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10

Voronkov, V. B., I. V. Grekhov, A. K. Kozlov, S. V. Korotkov, A. L. Stepanyants e D. V. Khristyuk. "“A high-frequency semiconductor generator of high-voltage nanosecond pulses”". Instruments and Experimental Techniques 50, n.º 4 (julho de 2007): 578. http://dx.doi.org/10.1134/s002044120704029x.

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11

Ding, Jiandong, e Bing Cao. "Research on Compact Nanosecond High-voltage Pulse Source". Journal of Physics: Conference Series 2396, n.º 1 (1 de dezembro de 2022): 012004. http://dx.doi.org/10.1088/1742-6596/2396/1/012004.

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Abstract With the application of pulse power technology in the fields of biomedical research, portable pulse source, and electromagnetic pulse radiation, the research of pulse sources puts forward new requirements such as compact structure, long pulse width, and high voltage resistance. The traditional pulse source has a long pulse period and short pulse width, which cannot meet the requirements of the high repetition frequency and high output power. In this paper, a nanosecond high-voltage pulse source is designed, which consists of a primary power supply, a pulse charging system, and a pulse shaping system. The DC power charges the Marx generator, while the Marx generator output is shaped by short-circuit sharpening switches. In this paper, PSpice simulation software is used to simulate the results: the pulse period is 1.4ns and the peak-to-peak voltage is 210kV.

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12

Bulan, V. V., E. V. Grabovskii, A. N. Gribov, V. G. Luzhnov e I. R. Yampol'skii. "Operation simulation of a high-voltage nanosecond multistage generator". Instruments and Experimental Techniques 43, n.º 3 (maio de 2000): 357–62. http://dx.doi.org/10.1007/bf02759035.

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13

Rao, Xin, Xiaodong Chen, Jun Zhou, Bo Zhang e Yasir Alfadhl. "Design of a High Voltage Pulse Generator with Large Width Adjusting Range for Tumor Treatment". Electronics 9, n.º 6 (26 de junho de 2020): 1053. http://dx.doi.org/10.3390/electronics9061053.

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The unique biological effects stimulated by short pulsed electric field have many applications in tumor treatment, such as irreversible electroporation, electrochemotherapy, gene transfection and immune therapy. These biological effects require high voltage pulses with different pulse width in the range from nanoseconds to hundreds of microseconds. To fulfill this requirement, a compact high voltage pulse generator has been designed based on a switchable capacitor array and a SiC MOSFET switching array. The proposed pulse generator has one output channel with an adjustable pulse width from 100 ns to 100 µs, an amplitude range from 0 kV to 2 kV, a repetition rate less than 1.2 kHz and a voltage drop less than 5%. The mechanism of the stacked switches circuit was investigated, in connection with a switchable capacitor array. The introduction of a switchable capacitor array extends the pulse width from nanosecond scale and microsecond scale compared with other similar design methods. The pulse generator has been designed in simulation and implemented in experiment. The developed pulse generator provides a convenient and economical tool for the further studies of the unique biological effects stimulated by different pulsed electric fields for tumor treatment.

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14

Deng, Zichen, Qi Yuan, Ran Chang, Zhenjie Ding, Weidong Ding, Linyuan Ren e Yanan Wang. "High voltage nanosecond pulse generator based on pseudospark switch and diode opening switch". Review of Scientific Instruments 94, n.º 2 (1 de fevereiro de 2023): 024703. http://dx.doi.org/10.1063/5.0127505.

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With the development of technology, low-temperature plasma plays an increasingly important role in industrial applications. The industrial application of low-temperature plasma has the following requirements for plasma, high electron energy, low macroscopic temperature, and uniformity. Low-temperature plasma driven by nanosecond pulses reflects more significant advantages in these aspects compared to direct current plasma and alternating current plasma. In this paper, a simple topology is proposed, which is based on the pseudospark switch and the diode opening switch. A pulse generator is developed, which can eventually output pulses with an amplitude of 106 kV, a rise time of 15.5 ns, a pulse width of 46 ns, and a maximum repetition rate of 1 kHz on a 260 Ω resistive load. The pulse generator can successfully drive needle-plate discharge plasma in ambient air. It has excellent parameters, stability, compactness, and a long lifetime. The proposed topology may be helpful for nanosecond pulse generators with amplitude ranging from tens to hundreds of kilovolts, which could be widely used in industry.

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15

Li, Junna, Yongliang Wang, Shi He, Xuliang Chen e Aici Qiu. "Compact pulse generator with sub-nanosecond rise time based on inductance of order of several nH". Review of Scientific Instruments 93, n.º 8 (1 de agosto de 2022): 084704. http://dx.doi.org/10.1063/5.0101573.

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Pulse generators with a sub-nanosecond rise time are typically used to calibrate measurement probes in electromagnetic pulses. However, the technological dilemma between high voltage and low inductance has not been adequately addressed in this context. In this paper, the authors investigate the effects of the circuit and structural parameters on the generator. To reduce the rise time of the output voltage of the generator to a few hundred picoseconds, the inductance of its structure and the spark gap needs to be strictly controlled. We use SF6 at 1 MPa as an insulating gas for the spark gap to reduce the inductance of the capacitor and the switch to the order of several nH. The results of theoretical calculations and simulations were used to design and test two generators that used a coaxial ceramic capacitor and three plate ceramic capacitors, respectively. The experimental results showed that a double-exponential pulse voltage with a sub-nanosecond rise time could be obtained in a 50 Ω transmission line in both generators. The generator with the coaxial ceramic capacitor had better characteristics than the one that used three plate ceramic capacitors with a rise time of 630–860 ps when the peak output voltage was in the range of 5–30 kV.

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16

Achour, Yahia, Jacek Starzyński e Kazimierz Jakubiuk. "New Architecture of Solid-State High-Voltage Pulse Generators". Energies 15, n.º 13 (1 de julho de 2022): 4823. http://dx.doi.org/10.3390/en15134823.

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The application of the nanosecond pulsed electric field (nsPEF) for biomedical treatments has gained more interest in recent decades due to the development of pulsed power technologies which provides the ability to control the electric field dose applied during tests. In this context, the proposed paper describes a new architecture of solid-state high-voltage pulse generators (SS-HVPG) designed to generate fully customised sequences of quasi-rectangular pulses. The idea is based on the combination of semiconductor switches (IGBT/MOSFET) known for their flexibility and controllability with special magnetic switches to build compact and modular generators. The proposed structure is inspired by the most known pulse generator of Marx, but mixes its two variants for negative and positive polarities. Thus, the polarity of the generated pulses can be freely selected. In addition to that, the use of IGBTs/MOSFET ensures a tunable repetition rate and pulse width. The capacitors are charged via a series of magnetic switches and a flyback DC–DC converter which provides fast and efficient charging and also an adjustable amplitude of the output pulses. The design can be easily simplified giving two other modified structures, based on the same idea, for mono-polar operating (only positive or only negative pulses) with a reduced number of switches. A SPICE simulation of the generator and results of experimental tests carried out on a three stages generator are presented. The obtained results confirm the operating principle and the claimed performances of the new structure.

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17

Feng, Xian-wang, Xing-wu Long e Zhong-qi Tan. "Nanosecond square high voltage pulse generator for electro-optic switch". Review of Scientific Instruments 82, n.º 7 (julho de 2011): 075102. http://dx.doi.org/10.1063/1.3606447.

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18

ACHOUR, Yahia. "Nanosecond EMP simulator using a new high voltage pulse generator". PRZEGLĄD ELEKTROTECHNICZNY 1, n.º 10 (5 de outubro de 2017): 35–38. http://dx.doi.org/10.15199/48.2017.10.07.

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19

Korotkov, S. V., V. V. Smorodinov, Yu V. Aristov, A. V. Bystrov, A. L. Zhmodikov e D. A. Korotkov. "Semiconductor generator of high voltage nanosecond pulses for plasma technologies". IOP Conference Series: Materials Science and Engineering 643 (13 de novembro de 2019): 012081. http://dx.doi.org/10.1088/1757-899x/643/1/012081.

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20

Kohler, Sophie, Vincent Couderc, Rodney P. O'Connor, Delia Arnaud-Cormos e Philippe Leveque. "A versatile high voltage nano- and sub-nanosecond pulse generator". IEEE Transactions on Dielectrics and Electrical Insulation 20, n.º 4 (agosto de 2013): 1201–8. http://dx.doi.org/10.1109/tdei.2013.6571435.

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21

Li, M. J., D. Y. Chen, L. Zhou, C. Liang, L. Zhou e H. B. You. "Development of compact nanosecond pulsed X-ray source". Laser and Particle Beams 35, n.º 2 (6 de março de 2017): 274–78. http://dx.doi.org/10.1017/s0263034617000155.

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AbstractA compact nanosecond pulsed X-ray source is described. The X-ray source consists of two important subassemblies: a high-voltage pulse generator and an X-ray diode. The high-voltage pulse generator is designed based on the principle of triple resonance circuit producing a high-voltage pulse across the X-ray diode with amplitude of up to 500 kV. The X-ray diode is a sealed transmission target X-ray tube. Its cathode is comb structure formed from thin tungsten sheets with thickness 50 µm, while its target is made of 100 µm titanium film. The X-ray dose at a distance of 20 cm from the diode is 20 mR per pulse, while the diode voltage is 512 kV. In the case, the full-width at half-maximum of the X-ray pulse is ~5 ns.

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22

Balcerak, Michał, Marcin Hołub e Ryszard Pałka. "High voltage pulse generation using magnetic pulse compression". Archives of Electrical Engineering 62, n.º 3 (1 de setembro de 2013): 463–72. http://dx.doi.org/10.2478/aee-2013-0037.

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Abstract The paper presents an overview of a method of nanosecond-scale high voltage pulse generation using magnetic compression circuits. High voltage (up to 18 kV) short pulses (up to 1.4 μs) were used for Pulsed Corona Discharge generation. In addition, the control signal of parallel connection of IGBT and MOSFET power transistor influence on system losses is discussed. For a given system topology, an influence of core losses on overall pulse generator efficiency is analysed.

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23

Samizadeh Nikoo, Mohammad, e Seyed Morad Ali Hashemi. "High-Power Nanosecond Pulse Generator With High-Voltage SRD and GDT Switch". IEEE Transactions on Plasma Science 43, n.º 9 (setembro de 2015): 3268–76. http://dx.doi.org/10.1109/tps.2015.2411251.

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24

Korotkov, S. V., A. L. Zhmodikov e D. A. Korotkov. "A Generator of Nanosecond High-Voltage Pulses Based on Shock-Ionized Dynistors". Instruments and Experimental Techniques 66, n.º 6 (dezembro de 2023): 915–19. http://dx.doi.org/10.1134/s0020441223060039.

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Abstract— A generator of high-power nanosecond pulses consisting of four stages that are switched on in a relay-race mode is described. Each stage contains a storage capacitor with an operating voltage of 8 kV and an assembly of series-connected shock-ionized dynistors. The possibility of switching current pulses with an amplitude of 800 А to a load of 30 Ω a rise time of 4 ns, and a repetition rate of 100 Hz is demonstrated. The prospects for increasing the output voltage and the output energy of the generator are determined.

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25

Ma, Jianhao, Liang Yu, Shoulong Dong, Chenguo Yao, Liangxi Gao, Wenjie Sun e Yingjiang He. "MHz Nanosecond Rectangular Pulse Generator With High Voltage Gain and Multimode". IEEE Transactions on Power Electronics 36, n.º 8 (agosto de 2021): 8978–87. http://dx.doi.org/10.1109/tpel.2021.3052943.

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26

Andreev, V. V., Yu P. Pichugin, V. G. Telegin e G. G. Telegin. "A high-voltage nanosecond pulse generator based on a barrier discharge". Instruments and Experimental Techniques 56, n.º 3 (maio de 2013): 299–301. http://dx.doi.org/10.1134/s0020441213030160.

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27

Minamitani, Yasushi, Yoshinori Ohe e Yoshio Higashiyama. "Nanosecond High Voltage Pulse Generator Using Water Gap Switch for Compact High Power Pulsed Microwave Generator". IEEE Transactions on Dielectrics and Electrical Insulation 14, n.º 4 (agosto de 2007): 894–99. http://dx.doi.org/10.1109/tdei.2007.4286522.

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28

Liu, Jian Ye, e Jiao Ni. "Design of a High-Voltage Signal Generator Applied Flashover Fault Detection". Applied Mechanics and Materials 734 (fevereiro de 2015): 930–34. http://dx.doi.org/10.4028/www.scientific.net/amm.734.930.

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For cable flashover failure, a signal generator design ideas of the NC DC high flash - DC medium voltage flash - low-voltage flash based on three pulse method, consists of three components: the DC source, medium-high pressure unit and low pressure unit. DC source adopts AC 220V power supply, after rectification, chopping booster output. The output of the DC source through an inverter and high-frequency boost get the high-voltage unit. Low unit through the high-speed switching devices and capacitor charging and discharging achieve nanosecond pulse generation. In this paper, the various aspects of the design of the system have made a detailed description and simulation research.

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29

Mao Chongyang, 毛重阳, 邹晓兵 Zou Xiaobing e 王新新 Wang Xinxin. "Development of multi-way high-voltage nanosecond rectangle wave pulsed power generator". High Power Laser and Particle Beams 27, n.º 4 (2015): 45004. http://dx.doi.org/10.3788/hplpb20152704.45004.

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30

Roh, Young-Su, e Yun-Sik Jin. "Analysis of Output Pulse of High Voltage and Nanosecond Blumlein Pulse Generator". Journal of Electrical Engineering and Technology 8, n.º 1 (2 de janeiro de 2013): 150–55. http://dx.doi.org/10.5370/jeet.2013.8.1.150.

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31

Korotkov, S. V., Yu V. Aristov e V. B. Voronkov. "A generator of high-voltage nanosecond pulses with a subnanosecond rise time". Instruments and Experimental Techniques 53, n.º 2 (março de 2010): 230–32. http://dx.doi.org/10.1134/s0020441210020132.

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32

Burtsev, V. A., A. A. Burtsev, D. B. Bel’sky, E. P. Bol’shakov, T. P. Bronzov, S. A. Vaganov, D. V. Getman et al. "A Nanosecond High-Voltage Pulse Generator Based on Artificial Double Forming Lines". Instruments and Experimental Techniques 63, n.º 4 (28 de julho de 2020): 461–66. http://dx.doi.org/10.1134/s0020441220040119.

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33

Voevodin, S. V., V. V. Gorokhov e V. I. Karelin. "A compact high-voltage nanosecond marx generator based on air-field dischargers". Instruments and Experimental Techniques 43, n.º 3 (maio de 2000): 345–49. http://dx.doi.org/10.1007/bf02759032.

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Zhang, Zhengzheng. "New multistage converter promises a new sub-nanosecond high-voltage pulse generator". Scilight 2019, n.º 38 (20 de setembro de 2019): 381104. http://dx.doi.org/10.1063/10.0000012.

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Starikovskii, A. Yu, N. B. Anikin, I. N. Kosarev, E. I. Mintoussov, S. M. Starikovskaia e V. P. Zhukov. "Plasma-assisted combustion". Pure and Applied Chemistry 78, n.º 6 (1 de janeiro de 2006): 1265–98. http://dx.doi.org/10.1351/pac200678061265.

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This paper presents an overview of experimental and numerical investigations of the nonequilibrium cold plasma generated under high overvoltage and further usage of this plasma for plasma-assisted combustion.Here, two different types of the discharge are considered: a streamer under high pressure and the so-called fast ionization wave (FIW) at low pressure.The comprehensive experimental investigation of the processes of alkane slow oxidation in mixtures with oxygen and air under nanosecond uniform discharge has been performed. The kinetics of alkane oxidation has been measured from methane to decane in stoichiometric and lean mixtures with oxygen and air at room temperature under the action of high-voltage nanosecond uniform discharge.The efficiency of nanosecond discharges as active particles generator for plasma-assisted combustion and ignition has been investigated. The study of nanosecond barrier discharge influence on a flame propagation and flame blow-off velocity has been carried out. With energy input negligible in comparison with the burner's chemical power, a double flame blow-off velocity increase has been obtained. A signicant shift of the ignition delay time in comparison with the autoignition has been registered for all mixtures.Detonation initiating by high-voltage gas discharge has been demonstrated. The energy deposition in the discharge ranged from 70 mJ to 12 J. The ignition delay time, the velocity of the flame front propagation, and the electrical characteristics of the discharge have been measured during the experiments. Under the conditions of the experiment, three modes of the flame front propagation have been observed, i.e., deflagration, transient detonation, and Chapman-Jouguet detonation. The efficiency of the pulsed nanosecond discharge to deflagration-to-detonation transition (DDT) control has been shown to be very high.

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36

Syssoev, V. S., M. Y. Naumova, Y. A. Kuznetsov, A. I. Orlov, D. I. Sukharevsky, L. M. Makalsky e A. V. Kukhno. "Streamer discharge plasma generator". Perspektivnye Materialy 2 (2022): 62–69. http://dx.doi.org/10.30791/1028-978x-2022-2-62-69.

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A description of the developed nanosecond high-voltage generator of low-temperature plasma based on a volume streamer discharge is given. Plasma is formed in a high-voltage three-electrode gap, one of which is at a floating potential. Plasma is formed when a special switch is triggered, which connects a floating potential electrode, pre-charged with positive streamers, to a grounded electrode. The operation of the generator in a pulse-periodic mode greatly simplifies its application in experimental studies. Its design and electrical circuit are described. The main electrical characteristics and parameters of streamer plasma radiation in the optical and ultraviolet ranges are presented. An example of a specific application of a generator plasma for solving problems of water purification from metal ions (by the example of manganese) using electric discharge technology is given. The use of a low-temperature plasma of a streamer discharge for experimental research in the field of propagation of an ultrahigh-frequency (microwave) signal in an ionized region of the atmosphere (thunderstorm cell) is described.

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37

Deng, Zichen, Zhenjie Ding, Qi Yuan, Weidong Ding, Linyuan Ren e Yanan Wang. "High voltage nanosecond pulse generator based on diode opening switch and magnetic switch". Review of Scientific Instruments 92, n.º 6 (1 de junho de 2021): 064713. http://dx.doi.org/10.1063/5.0055062.

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Cao, Bao Feng, Jiang Bing Fan, Li Jun Song, Xin Li, Peng Li, Hong Wei Zhao, Qiu Han Liu e Wang Shi Ning. "Design of a 10MPa Nanosecond Gas Switch with Adjustable Gap". Applied Mechanics and Materials 599-601 (agosto de 2014): 643–47. http://dx.doi.org/10.4028/www.scientific.net/amm.599-601.643.

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This paper introduces a method to adjust the gap distance of nanosecond gas switch from outside when it is filled with high pressure gas. By using a two-stage planetary gear train and a pinion-and-rack device the gap between the electrodes can be linearly adjusted. The adjusting precision is 0.05 mm and adjustment range is 0 to 10 mm. The sealing of the insulator ring, rotation axle and outside conductors is designed. The performance of the rotation axle is pretty well under 12MPa gas pressure, air leakage not found. Experimental study on switch discharging is carried out by using a high voltage nanosecond pulse generator. The results show the output voltage of the pulse can reach 600kV by adjusting the switch gap. The rise-time of the pulse can be shortened form 3.5ns to 1ns.

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39

Ganesan, Selvakumar, Debarshi Ghosh, Ashu Taneja, Nitin Saluja, Shalli Rani, Aman Singh, Dalia H. Elkamchouchi e Irene Delgado Noya. "A Modified Marx Generator Circuit with Enhanced Tradeoff between Voltage and Pulse Width for Electroporation Applications". Electronics 11, n.º 13 (27 de junho de 2022): 2013. http://dx.doi.org/10.3390/electronics11132013.

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Electroporation is a next generation bioelectronics device. The emerging application of electroporation requires high voltage pulses having a pulse-width in the nanosecond range. The essential use of a capacitor results in an increase in the size of the electroporator circuit. This paper discusses the modification of a conventional Marx generator circuit to achieve the high voltage electroporation pulses with a minimal chip size of the circuit. The reduced capacitors are attributed to a reduction in the number of stages used to achieve the required voltage boost. The paper proposes the improved isolation between two capacitors with the usage of optocouplers. Parametric analysis is presented to define the tuneable range of the electroporator circuit. The output voltage of 49.4 V is achieved using the proposed 5-stage MOSFET circuit with an input voltage of 12 V.

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40

LAVRINOVICH, Alexey V., e Alexey V. MYTNIKOV. "A Mathematical Model for Studying the Pulse Flaw Detection of High-Voltage Transformer Windings". Elektrichestvo, n.º 10 (2021): 50–57. http://dx.doi.org/10.24160/0013-5380-2021-10-50-57.

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The article presents the results from elaborating a power transformer mathematical model for modeling the processes of diagnosing the mechanical state of windings using the method of low-voltage nanosecond pulses. The model includes a chain representation of the transformer windings taking into account the dependence of the resistance and reactance of the turns on the frequency spectrum of the pulse supplied from the probing generator. The study of the pulse flaw detection processes carried out on the developed mathematical model has shown that the probing pulse frequency spectrum plays an essential role in locating the transformer winding flaw, in determining the flaw type (displacement of turns, inward radial displacement, buckling). The response signals obtained from application of the simulated probing pulse coincide satisfactorily with the response signals obtained during experiments on the transformer physical model. The developed model opens the possibility of determining, by calculation, transformer winding flaw location and type based on comparing the results of experimental responses during examinations of transformers using the method of low-voltage nanosecond pulses with the simulation results.

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41

Shang, Tianyi, Linyuan Ren, Yanan Wang e Weidong Ding. "A Marx generator based on thyristors triggered in a shock ionization wave mode". Journal of Instrumentation 18, n.º 07 (1 de julho de 2023): P07008. http://dx.doi.org/10.1088/1748-0221/18/07/p07008.

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Abstract Recently, a new trigger mode of thyristor which is called shock ionization wave mode is researched. Compared with the conventional trigger mode, this trigger mode can turn on the thyristor rather fast. In this mode, a trigger voltage with a high amplitude and fast rising speed is applied at both ends of the thyristor. Many single-tube conduction experiments are reported while the conduction threshold of shock ionization wave mode has not been investigated. Besides, the application of this trigger mode in some pulse power topology remains blank which is useful for this mode. In this paper, to explore the impact ionization wave mode conduction threshold of commercial thyristor, fast front high voltage nanosecond pulses are generated by avalanche tube Marx circuit. Pulse signals of different amplitudes are realized through the voltage division resistor. The impact ionization wave mode trigger threshold for commercial thyristors is about 2500 V in amplitude and 250 V/ns in voltage rising speed and the higher the rated parameter of the thyristor, the higher the threshold. To broaden the application of this mode, a novel Marx generator based on thyristors is proposed. A four-stage Marx generator is constructed and the amplitude of the output voltage can reach 1869 V.

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42

Mao, Jiubing, Xin Wang, Dan Tang, Huayi Lv, Chengxin Li, Yanhua Shao e Lan Qin. "A compact, low jitter, nanosecond rise time, high voltage pulse generator with variable amplitude". Review of Scientific Instruments 83, n.º 7 (julho de 2012): 075112. http://dx.doi.org/10.1063/1.4737146.

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Shen, Yi, Wei Wang, Yi Liu, Liansheng Xia, Huang Zhang, Haifeng Pan, Jun Zhu, Jinshui Shi, Linwen Zhang e Jianjun Deng. "A compact 300 kV solid-state high-voltage nanosecond generator for dielectric wall accelerator". Review of Scientific Instruments 86, n.º 5 (maio de 2015): 055110. http://dx.doi.org/10.1063/1.4921396.

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Krastelev, E. G., S. P. Maslennikov e E. Ya Shkol’nikov. "A high-voltage nanosecond pulse generator for exciting diffuse gas discharges at atmospheric pressure". Instruments and Experimental Techniques 52, n.º 5 (setembro de 2009): 703–6. http://dx.doi.org/10.1134/s002044120905011x.

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Pang, Lei, Qiaogen Zhang, Baozhong Ren e Kun He. "A compact repetitive high-voltage nanosecond pulse generator for the application of gas discharge". Review of Scientific Instruments 82, n.º 4 (abril de 2011): 043504. http://dx.doi.org/10.1063/1.3572265.

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Li, Lee, Chaobing Bao, Xibo Feng, Yunlong Liu e Lin Fochan. "Fast switching thyristor applied in nanosecond-pulse high-voltage generator with closed transformer core". Review of Scientific Instruments 84, n.º 2 (fevereiro de 2013): 024703. http://dx.doi.org/10.1063/1.4792593.

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Lim, Soo Won, Sunao Katsuki, Yun Sik Jin, Chuhyun Cho e Young Bae Kim. "Nanosecond High-Voltage Pulse Generator Using a Spiral Blumlein PFL for Electromagnetic Interference Test". IEEE Transactions on Plasma Science 42, n.º 10 (outubro de 2014): 2909–12. http://dx.doi.org/10.1109/tps.2014.2320540.

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Vauche, Remy, Sylvain Bourdel, Nicolas Dehaese, Jean Gaubert, Oswaldo Ramos Sparrow, Eloi Muhr e Herve Barthelemy. "High efficiency UWB pulse generator for ultra-low-power applications". International Journal of Microwave and Wireless Technologies 8, n.º 3 (20 de março de 2015): 495–503. http://dx.doi.org/10.1017/s1759078715000355.

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This paper presents the design of a fully integrated ultra-low-power Ultra Wide Band (UWB) pulse generator. The circuit is designed and optimized for low rate and localization applications. This UWB transmitter is based on the impulse response filter method in order to achieve high energy sub-nanosecond pulses. The circuit has been integrated in a ST-Microelectronics CMOS 0.13 μm technology with a supply voltage of 1.2 V on a die area of 0.56 mm2. A power manager is used to reduce the power leakages to 3.91 μW which gives a power consumption of 3.98 Mw at 10 kb/s. The measured dynamic energy consumed per pulse is 68 pJ and the measured energy of the emitted pulse is 2.15 pJ.

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49

Boyko, N. I., e A. V. Makogon. "GENERATOR OF HIGH-VOLTAGE NANOSECOND PULSES WITH REPETITION RATE MORE THAN 2000 PULSES PER SECOND FOR WATER PURIFICATION BY THE DISCHARGES IN GAS BUBBLES". Tekhnichna Elektrodynamika 2018, n.º 4 (15 de maio de 2018): 37–40. http://dx.doi.org/10.15407/techned2018.04.037.

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Vazirov, R. A., S. Yu Sokovnin, A. S. Krivonogova e A. G. Isaeva. "Investigation of the effectiveness of antimicrobial treatment of poultry products by electrophysical methods". Journal of Physics: Conference Series 2064, n.º 1 (1 de novembro de 2021): 012084. http://dx.doi.org/10.1088/1742-6596/2064/1/012084.

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Abstract Improved methods of processing food and agricultural products make it possible to achieve an optimal effect at an acceptable level of its quality. In radiobiology, Methods of synergistic effect of two factors are widespread, in particular, the combination of treatment with ionizing radiation (IR), UV and plasma. The use of these methods in the production cycle can significantly improve processing efficiency. In the present work were treated combined feeds of ‘PK-5’ and ‘PK-6’ in order to investigate the synergistic effect of IR treatment and high pressure gas discharge plasma (HP GDP) radiation. As the source of IR was used the nanosecond electron beam (NEB) of the accelerator URT-1 (1 Mev). To create the HP GDP was used a high-voltage nanosecond generator GVI-150 (150 kV). The obtained results indicate the presence of a synergistic effect of the combined effects of plasma radiation and NEB.

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