Double-loop stabilization system of output voltage of high-voltage power supply for powerful travelling wave tube

2017 ◽  
Author(s):  
Nicholai A. Kalistratov ◽  
Ekaterina E. Mirgorodskaya ◽  
Eugene D. Karnaukhov ◽  
Nikita P. Mityashin ◽  
Yuri B. Tomashevsky ◽  
...  
Keyword(s):  
High Voltage ◽  
Power Supply ◽  
Output Voltage ◽  
Travelling Wave ◽  
Double Loop ◽  
Stabilization System ◽  
Wave Tube ◽  
High Voltage Power Supply

Designing of a High Voltage Power Supply for Electrospinning Apparatus Using a High Voltage Flyback Transformer (HVFBT)

2015 ◽  
Vol 771 ◽  
pp. 145-148 ◽  
Author(s):  
Muhammad Miftahul Munir ◽  
Dian Ahmad Hapidin ◽  
Khairurrijal
Keyword(s):  
High Voltage ◽  
Duty Cycle ◽  
Power Supply ◽  
Pulse Width ◽  
Output Voltage ◽  
Pulse Width Modulation ◽  
Experimental Results ◽  
High Voltage Power Supply ◽  
Electrospinning Technique ◽  
The World

Research on nanofiber materials is actively done around the world today. Various types of nanofibers have been synthesized using an electrospinning technique. The most important component when synthesizing nanofibers using the electrospinning technique is a DC high voltage power supply. Some requirements must be fulfilled by the high voltage power supply, i.e., it must be adjustable and its output voltage reaches tens of kilovolts. This paper discusses the design and development of a high voltage power supply using a diode-split transformer (DST)-type high voltage flyback transformer (HVFBT). The DST HVFBT was chosen because of its simplicity, compactness, inexpensiveness, and easiness of finding it. A pulse-width modulation (PWM) circuit with controlling frequency and duty cycle was fed to the DST HVFBT. The high voltage power supply was characterized by the frequency and duty cycle dependences of its output voltage. Experimental results showed that the frequency and duty cycle affect the output voltage. The output voltage could be set from 1 to 18 kV by changing the duty cycle. Therefore, the nanofibers could be synthesized by employing the developed high voltage power supply.

High Voltage Power Supply Designed for Electronic Beam Welder Based on LC Series Resonance

2014 ◽  
Vol 960-961 ◽  
pp. 925-928
Author(s):  
Ze Ting Wang ◽  
Hong Yin Zhang ◽  
Sheng Wen Fan
Keyword(s):  
High Voltage ◽  
Power Supply ◽  
Output Voltage ◽  
Pulse Frequency ◽  
Pulse Frequency Modulation ◽  
High Voltage Power Supply ◽  
Series Resonance ◽  
Welding Technology ◽  
Zero Current Switching ◽  
Zero Current

A 60kV/6kW high voltage power supply for electronic beam welder (EBW) based on LC series resonance is designed. It adopts pulse frequency modulation (PFM) way to adjust the output voltage, and it has over-current and over-voltage protection. The test proves that high voltage power supply has reached zero current switching (ZCS) on and ZCS off, and satisfied the actual requirements of welding technology.

The Design of High-Voltage Direct Current Power Supply for the Electrical Fast Transient Pulse/Burst Generator

2014 ◽  
Vol 494-495 ◽  
pp. 1452-1456
Author(s):  
Wu Zhu ◽  
Shi Bing Wu ◽  
Hai Yu Lu ◽  
Xuan Hong ◽  
Juan Juan Yu ◽  
...  
Keyword(s):  
High Voltage ◽  
Power Supply ◽  
Output Voltage ◽  
High Voltage Power Supply ◽  
Key Technology ◽  
Pulse Burst ◽  
High Voltage Direct Current ◽  
Dc Power ◽  
Working Principle ◽  
Fast Transient

On the basis of introducing the working principle of the electrical fast transient pulse/burst generator, the method of combination of AC inverting and DC boosting is adopted to design a kind of DC high voltage power supply used for the electrical fast transient pulse/burst generator after the further study about the key technology of the high voltage DC power supply according to the requirements of IEC61000-4-4. The experiments show that the power output voltage reaches 5 KV, meanwhile the range of output voltage is from 0.1 KV to 5.0 KV within the linearity is about 5%, the electric power can be up to 250 watts. Above all, the design meets the requirements of the high voltage power supply for the electrical fast transient pulse/burst generator.

scholarly journals Dynamics of processes in a high-voltage power supply, operating on technological load

2011 ◽  
Vol 16 (4) ◽  
pp. 103-112
Author(s):  
T.V. Rudenko ◽  
YU.V. Rudenko
Keyword(s):  
High Voltage ◽  
Power Supply ◽  
Output Voltage ◽  
Power Transformer ◽  
High Voltage Power Supply ◽  
Internal Parameters

The analysis of output voltage ripples in dependence of the internal parameters of power transformer is provided. The dynamics of processes at the output circuits of power supply is analyzed with taking into account the particularities of its operation on the technological

scholarly journals Application of Particle Swarm Optimization in the Design of an ICT High-Voltage Power Supply with Dummy Primary Winding

Electronics ◽  
2021 ◽  
Vol 10 (15) ◽  
pp. 1866
Author(s):  
Can Jiang ◽  
Jun Yang ◽  
Mingwu Fan
Keyword(s):  
Particle Swarm Optimization ◽  
High Voltage ◽  
Power Supply ◽  
Output Voltage ◽  
Circuit Simulation ◽  
Particle Swarm ◽  
Design Parameters ◽  
High Voltage Power Supply ◽  
Swarm Optimization ◽  
Load Regulation

The distribution of disk output voltage is a key factor for the design of an insulated core transformer (ICT) high-voltage power supply. The development of an ICT involves the design and optimization of many parameters, which greatly affect the uniformity of disk output voltage. A new ICT structure with dummy primary windings can compensate for the disk output voltage, which aims to improve uniformity. In this work, an optimization method based on a particle swarm optimization (PSO) algorithm was used to optimize the design parameters of an ICT with dummy primary windings. It achieved an optimal uniformity of disk output voltage and load regulation. The design parameters, including the number of secondary winding turns and the compensation capacitance, were optimized based on the finite-element method (FEM) and Simulink circuit simulation. The results show that the maximum non-uniformity of the disk output voltage is reduced from 11.1% to 4.4% from no-load to a full load for a 200 kV/20 mA HUST-ICT prototype. Moreover, the load regulation is greatly reduced from 14.3% to 9.6%. The method improves the stability and reliability of the ICT high voltage power supply and greatly reduces the design time.

scholarly journals Study on aluminum nitride/addition-cure liquid silicone rubber composite for high-voltage power encapsulation

PLoS ONE ◽  
2021 ◽  
Vol 16 (6) ◽  
pp. e0252619
Author(s):  
Zhenzhen Ou ◽  
Feng Gao ◽  
Lingjian Zhu ◽  
Huaijun Zhao ◽  
Zihan Xun
Keyword(s):  
Thermal Conductivity ◽  
High Voltage ◽  
Silicone Rubber ◽  
Power Supply ◽  
Output Voltage ◽  
Breakdown Strength ◽  
High Voltage Power Supply ◽  
Liquid Silicone Rubber ◽  
Liquid Silicone ◽  
Packaging Module

In view of the development direction of high power and miniaturization of high-voltage power supply, higher requirements are put forward for the breakdown strength, thermal conductivity of packaging materials for its high voltage output module. An electric-insulated heat-conducted material with aluminium nitride as heat conducting filler and addition-cure liquid silicone rubber (ALSR) as matrix for high voltage power encapsulation has been studied. Initially, the thermal conductivity and breakdown strength of composites were explored at different filler fractions. With increase of filler fraction, the thermal conductivity increased and the breakdown strength decreased. Then, with the packaging module volume as the optimization objective and the working temperature as the optimization condition, the temperature distribution of high voltage power supply was studied by using the finite element method, and 40wt% filling fraction was selected as the optimal ratio. Finally, the actual packaging experiment of the high voltage module is carried out. and the variation of the output voltage and temperature with the working time is obtained. According to the experimental results, the output voltage of the high voltage module is basically stable, and the maximum surface temperature is 40.4°C. The practicability of the electric-insulated heat-conducted material has been proved.

scholarly journals High Power Impulse Magnetron Sputtering of In2O3/Sn Cold Sprayed Composite Target

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1228
Author(s):  
Marcin Winnicki ◽  
Artur Wiatrowski ◽  
Michał Mazur
Keyword(s):  
Thin Films ◽  
Magnetron Sputtering ◽  
High Voltage ◽  
High Power ◽  
Power Supply ◽  
Indium Tin Oxide ◽  
Volume Ratio ◽  
Cold Spraying ◽  
High Voltage Power Supply ◽  
Composite Target

High Power Impulse Magnetron Sputtering (HiPIMS) was used for deposition of indium tin oxide (ITO) transparent thin films at low substrate temperature. A hybrid-type composite target was self-prepared by low-pressure cold spraying process. Prior to spraying In2O3 and oxidized Sn powders were mixed in a volume ratio of 3:1. Composite In2O3/Sn coating had a mean thickness of 900 µm. HiPIMS process was performed in various mixtures of Ar:O2: (i) 100:0 vol.%, (ii) 90:10 vol.%, (iii) 75:25 vol.%, (iv) 50:50 vol.%, and (v) 0:100 vol.%. Oxygen rich atmosphere was necessary to oxidize tin atoms. Self-design, simple high voltage power switch capable of charging the 20 µF capacitor bank from external high voltage power supply worked as a power supply for an unbalanced magnetron source. ITO thin films with thickness in the range of 30–40 nm were obtained after 300 deposition pulses of 900 V and deposition time of 900 s. The highest transmission of 88% at λ = 550 nm provided 0:100 vol. % Ar:O2 mixture, together with the lowest resistivity of 0.03 Ω·cm.

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