Development of Repetitive Pulsed Power Generators Using Power Semiconductor Devices

Jiang, Weihua; Oshima, N.; Yokoo, T.; Yatsui, Kiyoshi; Takayama, Ken; Wake, M.; Shimizu, Naohiro; Tokuchi, Akira

doi:10.1109/ppc.2005.300545

Cited by 11 publications

(4 citation statements)

References 8 publications

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“…Common to all the circuits presented is the fact that only semiconductor switches can be used, as MHz on-off capability is needed. Hence, the present demand for pulse generator technology has been driven by the evolution of solid state pulse generators, with optimized performance and reliability [26]. This has been pushed by the development of more efficient semiconductor switches, being the MOSFETs, i.e., metal oxide semiconductor field effect transistors, based on SiC technology, presently the most used switches.…”

Section: Introductionmentioning

confidence: 99%

Four Channel 6.5 kV, 65 A, 100 ns–100 µs Generator with Advanced Control of Pulse and Burst Protocols for Biomedical and Biotechnological Applications

Kandratsyeu

Sabaleuski²,

Redondo

et al. 2021

Applied Sciences

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Pulsed electric fields in the sub-microsecond range are being increasingly used in biomedical and biotechnology applications, where the demand for high-voltage and high-frequency pulse generators with enhanced performance and pulse flexibility is pushing the limits of pulse power solid state technology. In the scope of this article, a new pulsed generator, which includes four independent MOSFET based Marx modulators, operating individually or combined, controlled from a computer user interface, is described. The generator is capable of applying different pulse shapes, from unipolar to bipolar pulses into biological loads, in symmetric and asymmetric modes, with voltages up to 6.5 kV and currents up to 65 A, in pulse widths from 100 ns to 100 µs, including short-circuit protection, current and voltage monitoring. This new scientific tool can open new research possibility due to the flexibility it provides in pulse generation, particularly in adjusting pulse width, polarity, and amplitude from pulse-to-pulse. It also permits operating in burst mode up to 5 MHz in four independent channels, for example in the application of synchronized asymmetric bipolar pulses, which is shown together with other characteristics of the generator.

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Section: Introductionmentioning

confidence: 99%

Four Channel 6.5 kV, 65 A, 100 ns–100 µs Generator with Advanced Control of Pulse and Burst Protocols for Biomedical and Biotechnological Applications

Kandratsyeu

Sabaleuski²,

Redondo

et al. 2021

Applied Sciences

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“…Repetitive PPGs benefit from high reliability, smaller size and lower maintenance compared to conventional PPGs [25]. Semiconductor switches and magnetic switches are usually used to improve the performance of PPGs [24], [26]- [28].…”

Section: Introductionmentioning

confidence: 99%

A Review of Pulsed Power Systems for Degrading Water Pollutants Ranging From Microorganisms to Organic Compounds

2019

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Water quality improvement and collecting safe water are two of the paramount concerns in today's world. Numerous water treatment and pollutant removal processes are introduced that vary with the type of pollutants. Among the proposed pollutant degradation methods, pulsed power is one of the effective methods that can be applied not only to degrade a wide range of contaminants but also to address the environmental issues associated with water treatment chemicals. The effectiveness of the pulsed power technology in water treatment was studied for a wide range of pollutants including microorganisms, nutrient pollution, emerging pollutants, and organic pollutants. This paper presents a review of pulsed power systems developed for organic and inorganic pollutants degradation in different water treatment applications. Also, it presents the effectiveness of several factors like the electrical characteristics of the pulse voltages and treatment time on degradation rates of different pollutants.

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“…High voltage pulsed power technology [1,2,3,4] has been widely used in industrial applications and military defense applications, such as food processing, medical treatment, environment protection and others [5,6,7,8]. Over the past decades, solid-state power devices [9,10,11] have become the preferred choice of pulse switch in pulse modulators due to their high efficiency, long lifetime, light weight and low cost [12]. Among these devices, the base resistance controlled thyristor (BRT) [13,14,15,16,17,18] attracted considerable attention because of its ultra-high current density, reduced forward voltage drop and double-diffusion process which compatible with IGBT [19,20,21].…”

Section: Introductionmentioning

confidence: 99%

Snapback-free base resistance controlled thyristor with floating N-region

Song

Han

et al. 2019

IEICE Electron. Express

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An analysis model of snapback voltage for the base resistance controlled thyristor (BRT) is developed in this paper. It's shown that, improving hole current flowing into P-base region is an important way to suppress snapback phenomenon during forward conducting state. Thus, a new BRT with a floating N-region in N-drift layer is proposed. In this new structure, the floating N-region introduces a hole potential barrier in parasitic PNP to prevent holes from being swept into cathode. Then, almost all of hole current flow into P-base to trigger latch-up effect and the parastic PNP transistor is greatly suppressed. Thus, snapback is significantly suppressed. Numerical simulation results show that, when doping level and length of floating N-region are 8.0 × 10 15 cm −3 and 5.0 µm, snapback-free can be realized, and pulse discharge performance and turn on characteristics are greatly improved meanwhile the high blocking capability is maintained.

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Development of Repetitive Pulsed Power Generators Using Power Semiconductor Devices

Cited by 11 publications

References 8 publications

Four Channel 6.5 kV, 65 A, 100 ns–100 µs Generator with Advanced Control of Pulse and Burst Protocols for Biomedical and Biotechnological Applications

Four Channel 6.5 kV, 65 A, 100 ns–100 µs Generator with Advanced Control of Pulse and Burst Protocols for Biomedical and Biotechnological Applications

A Review of Pulsed Power Systems for Degrading Water Pollutants Ranging From Microorganisms to Organic Compounds

Snapback-free base resistance controlled thyristor with floating N-region

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