All-Solid-State Repetitive Pulsed-Power Generator Using IGBT and Magnetic Compression Switches

Wang, Dongdong; Qiu, Jian; Liu, Kefu

doi:10.1109/tps.2010.2045515

Cited by 41 publications

(3 citation statements)

References 13 publications

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“…Further improvements in the pulsed-power designs are likely to include the use of Si-Carbide MOSFET switching technologies, which would extend the lifetime and reliability of the power-supply components, and the use of high coercivity magnetic alloys, which would provide for fast-risetime pulse shaping and a higher energy transfer efficiency to the ion-source/accelerator. Many of these features have already been tested [42][43][44].…”

Section: High-voltage Power Supplymentioning

confidence: 99%

Neutralized, intense-ion beams for fusion

Wessel,

Egly,

Rogers

2024

Plasma Phys. Control. Fusion

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- A charge- and current-neutralized, intense-ion beam (IIB) will propagate undeflected in a magnetized plasma by the $\bf{E}\times\bf{B}$, or diamagnetic, drift for a distance large compared to the beam-ion gyro-radius. This propagation occurs because of collective plasma effects when the beam-energy density is sufficient to sustain the polarization-electric field, or diamagnetic-screening currents. Our principal interest is the \exb, with $\beta = \mathcal{E}_\text{beam}/ \mathcal{E}_\text{field} < 1$. IIBs are characterized by parameters in the range: 0.1-2 MeV ion energy, 1-100 MA/m$^2$ ion-current density, and 17 - 350 kW average power produced on repetitively-pulsed systems. Multi-MW average-beam power is possible with appropriate modifications to the power supply and ion-source/accelerator. IIBs can be focused geometrically, and/or magnetically, to spot sizes of the order of a few cm's and their angular divergence is typically, $\sim$15 mRadians, suitable for long-range propagation in a vacuum beam-line. IIBs lose energy and momentum in the same manner as particles injected by a neutral-beam injector (NBIs), hence could be useful for fusion applications, including: heating, current drive, fueling, profile modifications, etc., and such applications have yet to be thoroughly studied. Summarized here are the physical principles accounting for IIB propagation; ion-source designs used to produce the IIB; and pulsed-power methods for energizing the IIB accelerator. This technology base informs scalable metrics for the ion-source/accelerator (excluding the HV power supply and interconnects) used in a conceptual injector that provides the same ion energy and injected power (1 MeV, 17 MW) as NBIs used on ITER. A comparison indicates that the IIB injector would be much smaller in size, lower cost, and have much greater efficiency, while also providing for real-time modulation of the beam energy and intensity and the use of small-diameter injection ports that could minimize fuel contamination and magnetic-field leakage between the IIB injector and tokamak.

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Section: High-voltage Power Supplymentioning

confidence: 99%

Neutralized, intense-ion beams for fusion

Wessel,

Egly,

Rogers

2024

Plasma Phys. Control. Fusion

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“…Triggering 240 number switches with minimum jitter ensures proper operation of the pulser. A novel methodology based on inductive pick-up concept [21] is employed for providing the logic input to the gate drive chip [22]. The logic input is obtained by passing current (primary) through ferrite bead of dimensions 16/10/6 mm.…”

Section: System Descriptionmentioning

confidence: 99%

Development of 22 kV, 1 kHz rep-rated solid-state pulser based on Linear Transformer Driver topology

et al. 2014

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The present manuscripts discusses the development of a forty stage, 22 kV solid-state pulser based on Linear Transformer Driver (LTD) topology employing 240 MOSFET switches operating at rep-rate of 1 kHz. A transformer based triggering scheme is implemented which enables the switches to operate at a jitter of < 5 ns. Each stage drives ∼ 220 A peak pulsed current and the output voltage of forty such stages are inductively added to generate 22 kV across 100 Ω resistive load, having a rise time of ∼ 20 ns. The paper presents the developmental steps, highlighting the temporal jitter characteristics ∼ 5 ns (peak to peak jitter measured at output voltage at load end) demonstrated by the system.

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“…In [10], an all-solidstate pulsed power generator using IGBTs and magnetic compression switches is designed. In [11], a Marx generator with high repetition rates for plasma source ion implantation is implemented using IGBT stacks.…”

Section: Introductionmentioning

confidence: 99%

FPGA-Controlled All-Solid-State Nanosecond Pulse Generator for Biological Applications

Yao

Zhang

Guo

et al. 2012

IEEE Trans. Plasma Sci.

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In vivo studies of tumor-cell apoptosis induced by nanosecond pulsed electric field require high-voltage nanosecond pulses delivered to the biological tissues. In this paper, a newly developed all-solid-state nanosecond pulse generator based on the Marx generator concept is proposed for this application. The generator comprises four parts: a dc charging power, a solid-state Marx circuit using metal-oxide-semiconductor field-effect transistors, a control circuit using a field-programmable gate array, and the load. This generator has the capability of producing repetitive pulses with a voltage up to 8 kV, pulsewidth of 200-1000 ns, rise time of 35 ns, and repetition rate of 1-1000 Hz with various resistive loads and 1-kV dc input voltage. The all-solid-state design makes the generator compact and reliable. Initial experiments were carried out to verify the performances of the proposed generator.Index Terms-All-solid state, control, field-programmable gate array (FPGA), Marx circuit, nanosecond pulsed electric field (nsPEF), pulse generator.

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All-Solid-State Repetitive Pulsed-Power Generator Using IGBT and Magnetic Compression Switches

Cited by 41 publications

References 13 publications

Neutralized, intense-ion beams for fusion

Neutralized, intense-ion beams for fusion

Development of 22 kV, 1 kHz rep-rated solid-state pulser based on Linear Transformer Driver topology

FPGA-Controlled All-Solid-State Nanosecond Pulse Generator for Biological Applications

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