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Marx generator

About: Marx generator is a research topic. Over the lifetime, 1276 publications have been published within this topic receiving 8970 citations.


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Journal ArticleDOI
TL;DR: In this paper, the analysis, simulation and design of a peaking circuit comprising of a peak capacitor, spark gap, and load circuit is discussed, where the peaking capacitor gets charged to a peak voltage of 394.6 kV in 15 ns.

5 citations

Journal ArticleDOI
TL;DR: In this paper , a bipolar pulse generator based on multistage resonant charging has been proposed, which can deliver microsecond-range pulses for medical and industrial applications, and the main circuit consists of two sets of identical Marx generators connected back to back with the load between them.
Abstract: In this article, a bipolar pulse generator based on multistage resonant charging has been proposed, which can deliver microsecond-range pulses for medical and industrial applications. The main circuit consists of two sets of identical Marx generators connected back to back with the load between them. It can flexibly output bipolar pulses with adjustable amplitude, pulse width, and frequency. In this research, six eight-stage Marx generators have been employed to verify the performance of the proposed bipolar pulse generator. From the experimental results, the proposed generator can deliver pulses with the amplitude of ±10 kV to no-load and a resistive load of 50 $\text{k}\Omega $ . The repetitive frequency can be adjusted from 1 Hz to 1 kHz, and pulse width can be adjusted from 0.2 to $400~\mu \text{s}$ with 50 ns rising and falling time. The relaxation time between the positive and negative pulses can be determined from 0.2 to 400 $\mu \text{s}$ . In the high-voltage field, the proposed Marx generator can deliver higher output voltage pulses and has smaller voltage differences between stages than the traditional solid-state Marx generator.

5 citations

Proceedings ArticleDOI
08 May 2010
TL;DR: In this paper, a 20-class and 30-class avalanche transistor Marx circuit pulsers are designed, and the charged-capacitance is 100pF and 470pF, then 4 types of waveform are get.
Abstract: Ultra-wide spectrum (UWS) pulser, in which avalanche transistor is used as its switch, can generate high-repetition and -stability short-pulse, but its power is sharply lower than that of SOS and Tesla generators. Marx circuit is used to increase the power of this type of pulser. Different charged-capacitance and class of Marx circuit determines different waveform and peak-power of output pulse. 20-class and 30-class avalanche transistor Marx circuit pulsers are designed, and the charged-capacitance is 100pF and 470pF, then 4types of waveform are get. The highest output peak-voltage is 2.9kV, the highest repetition can reach 70kHz, and keep a better pulse stability, jitter is less than 40ps.

5 citations

Proceedings ArticleDOI
23 May 2004
TL;DR: In this paper, the authors describe the upgrade of the 350 kV NEMP HPD pulse generator of the WIS in Munster, Germany to an output voltage of 1.2 MV by using a commercially available 1.5 MV Marx generator.
Abstract: This paper will describe the upgrade of the 350 kV NEMP HPD pulse generator of the WIS in Munster, Germany to an output voltage of 1.2 MV by using a commercially available 1.2 MV Marx generator. The results of a PSpice investigation of the influence of the peaker capacitance and the line inductance on the pulse rise time, amplitude and width will be presented. The design, production and testing of the HV elements as feed through, pulse line and peaking capacitor under the restrictions of a short isolation distance and a high voltage will be discussed. The paper will conclude with a presentation of the measured electrical field parameters such as rise time, field strength, reproducibility etc. reached after the integration of the modified pulse generator into the existing dipole hybrid antenna construction in Munster

5 citations

Proceedings ArticleDOI
M.N. Nguyen1, T. Beukers1, C. Burkhart1, R. Larsen1, J. Olsen1, T. Tang1 
27 May 2008
TL;DR: The ILC Marx Modulator as discussed by the authors employs solid state elements, IGBTs and diodes, to control the charge, discharge and isolation of the modules, and is based on a stack of sixteen modules, each initially charged to ~11 kV, which are arranged in a Marx topology.
Abstract: The ILC Marx Modulator is under development as a lower cost alternative to the "Baseline Conceptual Design" (BCD) klystron modulator. Construction of a prototype Marx is complete and testing is underway at SLAC. The Marx employs solid state elements, IGBTs and diodes, to control the charge, discharge and isolation of the modules. The prototype is based on a stack of sixteen modules, each initially charged to ~11 kV, which are arranged in a Marx topology. Initially, eleven modules combine to produce the 120 kV output pulse. The remaining modules are switched in after appropriate delays to compensate for the voltage droop that results from the discharge of the energy storage capacitors. Additional elements will further regulate the output voltage to plusmn0.5%. The Marx presents several advantages over the conventional klystron modulator designs. It is physically smaller; there is no pulse transformer (quite massive at these parameters) and the energy storage capacitor bank is quite small, owing to the active droop compensation. It is oil-free; voltage hold-off is achieved using air insulation. It is air cooled; the secondary air-water heat exchanger is physically isolated from the electronic components. This paper outlines the current developmental status of the prototype Marx. It presents a detailed electrical and mechanical description of the modulator and operational test results. It will discuss electrical efficiency measurements, fault testing, and output voltage regulation.

5 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202322
202255
202132
202033
201951
201845