An Efficient, Repetitive Nanosecond Pulsed Power Generator with Ten Synchronized Spark Gap Switches

Liu, Z.; Pemen, A.J.M.; Hoppe, R.T.W.J. van; Winands, G.J.J.; Heesch, E.J.M. van; Yan, Keping

doi:10.1109/tdei.2009.5211834

Cited by 19 publications

(11 citation statements)

References 21 publications

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“…At the output side of the TLT, all stages of the TLT are connected in parallel, thus the output impedance is very low (5 Ω). Detailed information about the prototype is reported elsewhere [5]. It is observed that ten spark-gap switches can be synchronized properly within about 10 ns.…”

Section: Efficient High-power Pulsed Power Generationmentioning

confidence: 99%

A Linear Transformer Driver (LTD) with multiple self triggered switches

Liu

Pemen

Heesch

et al. 2011

2011 IEEE Pulsed Power Conference

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Multiple switches are normally required for the generation of very high pulse power levels. The critical problem related to multiple switches is how to synchronize them in a short time interval and how to obtain current/voltage balance. A multiple-switch technique based on a TLT (Transmission-LineTransformer) can solve this problem. It provides a failurefree solution to synchronize multiple switches automatically like in a Marx generator. In contrast to the Marx generator, it can produce pulses with various voltage and current gains and with a high degree of freedom in choosing output impedances. This technology has been investigated systematically.The feasibility of the technology has been demonstrated with a ten-switch (spark gaps) prototype. Pulses with a rise-time of 10 ns, a pulse width of 55 ns, a peak output power of 300-810 MW, a peak output voltage of 40-77 kV, and a peak output current of 6-11 kA have been achieved at a repetition rate of 300 pps and with an energy efficiency of over 93%. Also solid-state switches can be applied in this topology, e.g. proper operation of multiple thyristors has been verified for current multiplication. Moreover, the application of this topology for other circuits, such as Blumlein, Inductive-VoltageAdder, Linear-Transformer-Driver, was explored.

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Section: Efficient High-power Pulsed Power Generationmentioning

confidence: 99%

A Linear Transformer Driver (LTD) with multiple self triggered switches

Liu

Pemen

Heesch

et al. 2011

2011 IEEE Pulsed Power Conference

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“…A typical two-stage, magnetic pulse compressor system topology is depicted in Figure 2a. Voltage and current waveforms of respective compressor stages is given in Figure 2b Magnetic switches are robust and can also be used for high repetition rates (several kHz), however, their energy conversion efficiency for short pulse generation is relatively low (typically 60-80%) [4]. The shape of the magnetization curve is unfortunately negatively affected while decreasing the magnetization pulse length, which leads to increased core losses and the quality of pulse compression further decreases.…”

Section: Magnetic Pulse Current Compressionmentioning

confidence: 99%

“…Because of the extended lifetime, power electronic solid state switches were used in the form of IGBT and MOSFET transistors [4]. In order to generate high voltage, high power pulses on the input of the magnetic pulse compressor, it is necessary to use fast semiconductors with maximum blocking voltages and conduction currents.…”

Section: Current Compression Experimental Investigations and Efficienmentioning

confidence: 99%

High voltage pulse generation using magnetic pulse compression

Balcerak¹,

Hołub²,

Pałka³

2013

Archives of Electrical Engineering

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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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“…Traditional pulse generators generally utilise magnetic switches [11], spark gap switches [12, 13], thyratrons [14] etc. as discharge switches.…”

Section: Introductionmentioning

confidence: 99%

Modular solid‐state pulse generator based on multi‐turn LTD

Dong

Wang

et al. 2020

IET Power Electronics

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A modular solid-state pulse generator based on a multi-turn linear transformer driver (LTD) is designed for the application of pulse power techniques with a high voltage, large current and wide pulse width. The LTD adopts the method of multi-turn winding on the magnetic core, which can help to output pulses of wide width. The isolation of the power supply with windings in the same direction of the LTD modules is designed, and the isolation voltage of the magnetic cores is the working voltage of the LTD modules. A modular solid-state pulse generator based on the multi-turn LTD is developed, which is composed of 10 LTD modules. Each module consists of 18 energy storage capacitors, metal-oxide-semiconductor field-effect transistors and their driving circuits connected in parallel. The pulse generator can output pulses with parameters including a voltage ranging from 0 to 5000 V, a pulse current up to −500 A, and a pulse width ranging from 200 ns to 5 μs. When all modules work in synchronisation, rectangular pulses can be produced with a rise time of 30 ns and a fall time of 16 ns. If all modules are asynchronised, trapezoidal pulses are produced with adjustable step-like rising and falling edges. Moreover, a higher-voltage pulse can be achieved by increasing the number of LTD modules.

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An Efficient, Repetitive Nanosecond Pulsed Power Generator with Ten Synchronized Spark Gap Switches

Cited by 19 publications

References 21 publications

A Linear Transformer Driver (LTD) with multiple self triggered switches

A Linear Transformer Driver (LTD) with multiple self triggered switches

High voltage pulse generation using magnetic pulse compression

Modular solid‐state pulse generator based on multi‐turn LTD

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