Performance of pulsed power generator using high-voltage static induction thyristor

Hironaka, R.; Watanabe, Manabu; Hotta, Eiki; Okino, Akitoshi; Maeyama, Mitsuaki; Ko, Kwang-Cheol; Shimizu, Naohiro

doi:10.1109/27.901226

Cited by 23 publications

(2 citation statements)

References 7 publications

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“…We have applied an ultra-short pulsed power supply based on a static induction thyristor (SIThy), invented by Nishizawa et al [2,3] and developed by Shimizu et al [4,5], and an inductive energy storage (IES) circuit invented and developed by Iida et al [6,7] and applied in several ways by Jiang et al [8]. SIThys are Si devices with special structures for high power pulse generation and IES circuits are small-scaled circuits based on induction storage instead of conventional capacitor storage in order to use SIThys.…”

Section: Principlementioning

confidence: 99%

A novel method of hydrogen generation by water electrolysis using an ultra-short-pulse power supply

et al. 2005

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A novel method of hydrogen generation by water electrolysis using ultra-short-pulse power supply is demonstrated. The ultra-short power supply consists of a static induction thyristor (SIThy) and a specific circuit which is called the inductive energy storage (IES) circuit. It was found that by using an ultra-short pulse with the width of 300 ns, electrolysis takes place with a mechanism dominated by electron transfer, which is different from the conventional diffusion limiting process in DC electrolysis.

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Section: Principlementioning

confidence: 99%

A novel method of hydrogen generation by water electrolysis using an ultra-short-pulse power supply

et al. 2005

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“…The operation of power crowbar system requires that the closing switches can withstand high voltage and then quickly enter the conductive state to pass through a high current with minimal loss. Solid-state switches, such as insulated gate bipolar transistor (IGBT) [14], metaloxide-semiconductor field effect transistor (MOSFET) [15,16], and silicon-controlled rectifier (SCR) [13,17], combine the advantages of high voltage (kilovolt level) and current handling capability with fast switching times, and are widely used as power devices in medium power applications. However, it is difficult for solid-state switches to meet the electrical requirements when dealing with the power crowbar system for plasma research.…”

Section: Introductionmentioning

confidence: 99%

High-voltage and high-current crowbar system based on pseudospark switches: from system design to verification

et al. 2020

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This paper presents a high-voltage and high-current crowbar system using pseudospark switches to produce a fast front edge and prolonged pulse current with low ripple amplitude. The crowbar system mainly consists of a main switch, a crowbar switch, an energy storage capacitor, and an inductive load. The basic parameters of the pseudospark switch crowbar system: the storage capacitance is 5 µF, the typical operation voltage is 30 kV, the peak discharge current is about 46.2 kA, the rise time is 4.3 µs, and the pulse duration time is approximately 109 µs, which is nearly 25 times of the rise time. In this paper, we report the timing setting for crowbar system. Experimental results show that crowbar timing should be set slightly after first current maximum, which has a great advantage of increasing the time scale without any reduction in the loss-free peak current. In addition, the pulse current characteristics are also studied. In the research, crowbar inductance L c and crowbar resistance R c have significant effects on the ripple amplitude and load current amplitude of pulse current. The experimental results also show that the crowbar current I c can reach nearly twice of the coil load current I load with low crowbar inductance L c . The over-current capacity of the crowbar switch needs to be greater than that of the main switch. The experimental results in this paper can be used to optimize the inductive load current in high-voltage and high-current crowbar system. K: Pulsed power; Plasma generation (laser-produced, RF, x ray-produced)1Corresponding author.

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Hotta²

2010

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Performance of pulsed power generator using high-voltage static induction thyristor

Cited by 23 publications

References 7 publications

A novel method of hydrogen generation by water electrolysis using an ultra-short-pulse power supply

A novel method of hydrogen generation by water electrolysis using an ultra-short-pulse power supply

High-voltage and high-current crowbar system based on pseudospark switches: from system design to verification

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