MOSFET Gate Driver Circuit Design for High Repetitive (200 kHz) High Voltage (10 kV) Solid-State Pulsed-Power Modulator

Jo, Hyun-Bin; Song, Seung-Ho; Lee, Seung‐Hee; Ryoo, Hong-Je

doi:10.1109/tpel.2021.3062612

Cited by 14 publications

(6 citation statements)

References 20 publications

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“…The gate drive design is one of the most challenging parts in designing a solid-state Marx generator [20,21]. Figure 10 shows the general block diagram of the control and gate drive system for every stage in this study.…”

Section: Control and Gate Driversmentioning

confidence: 99%

High‐speed high‐voltage solid‐state Marx generator based on SiC MOSFETs

Dehghan

Seviour

Hunt³

2023

IET Power Electronics

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This paper presents a high‐speed, high‐voltage, solid‐state Marx generator based on silicon carbide MOSFETs. The objective was to develop a high‐rate repetitive, short‐pulse, high‐voltage and efficient generator for medical particle accelerator applications. To achieve this goal, a 720 kV Marx generator forming from 1445 kV stages was designed. Each stage includes several SiC devices in series to reach desired voltage and speed. Compared to the existing Marx generators, the proposed Marx generator is capable of producing shorter pulses with higher voltage. We present the experimental results of a three‐stage prototype Marx generator capable of producing 15 kV at 40 A output with a 200 nS pulse with a repetition rate of 500 Hz.

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Section: Control and Gate Driversmentioning

confidence: 99%

High‐speed high‐voltage solid‐state Marx generator based on SiC MOSFETs

Dehghan

Seviour

Hunt³

2023

IET Power Electronics

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“…In the process of repetition frequency discharge, the S bi can be fully turned on by increasing the driving voltage, which will not affect the charging speed and prevent the cumulative effect of voltage top-up caused by insufficient charging at high repetition frequency. Voltage sensors and other control signals are not required for lower cost and complexity than charging from a current-controlled input source [35] or current source [22].…”

Section: Operation Principle Of Proposed S 2 M 3 31 Switching Timing ...mentioning

confidence: 99%

“…Table 1 shows the key performance characteristics of existing drivers for pulse generators. [20][21][22][23][24] Self-triggered driver √ × +++ +++ +++ [25,26] Opto-magnetic driver √ √ ++ + + [27] Proposed driver √ √ ++ +++ +++ Note: the number of "+" represents the evaluation level.…”

Section: Introductionmentioning

confidence: 99%

“…Although some researchers have employed a self-triggered driver in Marx generators [25,26], it has certain constraints on capacitor charging voltage, and a self-triggered driver cannot control each semiconductor switch independently, which results in a long output pulse tail and a single pulse waveform. Such as series-core magnetic coupling [20][21][22][23][24] drivers, the driving power for all switches comes from the primary winding, which is connected to the half-bridge circuit, and high-voltage coaxial cables are necessary to transmit the drive signals, ensuring insulation while shielding against electromagnetic interference. It is the most economical solution for rectangular pulse generators; however, the ability to adjust the pulse waveform is poor.…”

Section: Introductionmentioning

confidence: 99%

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A Flexible Solid-State Marx Modulator Module Based on Discrete Magnetic Coupling Drivers

Chen,

Zhu,

Zheng

et al. 2023

Electronics

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With the increasing and deepening application of high-voltage nanosecond solid-state pulse generators in biological, industrial, and environmental fields, the development of existing pulse generators faces many challenges, such as fixed pulse shapes, the usage of isolated driver power supplies, lower power density, and limited output electrical performance. Hence, a novel high-frequency multilevel nanosecond modular solid-state Marx modulator (SSMM) based on discrete magnetic coupling gate drivers is proposed. The gate voltage of the two MOSFETs can be rapidly synchronized at a high repetition frequency to achieve an amplitude-controlled gate voltage within 100 ns. The feasibility of the driver was verified by PSpice simulation and prototype testing. Moreover, a stackable SSMM module (S2M3) structure is proposed to solve the problem of common-mode interference conducted through the driver, which improves the reusability, scalability, and redundancy of modulators. The characteristic parameters of the developed 14-stage S2M3 are as follows: an output voltage amplitude of 5.45 kV with a 100 ns–50 ms width, a minimum rise time of approximately 18 ns, and a continuous repetition frequency of 100 kHz. S2M3 has the ability to change the pulse shape, and the pulse frequency can reach 2.8 MHz within the burst.

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“…In this way, the low voltage can be multiplied easily. With the development of solid-state switches, various SSMGs that can flexibly adjust pulse width were developed [5][6][7][8][9][10]. Unlike the conventional Marx generators shown in Figure 1a, which use gas switches, SSMGs typically use semiconductor switches such as MOSFETs and IGBTs to generate repetitive pulses [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

A Solid-State Marx Generator with Prevention of through Current for Rectangular Pulses

Shi,

Chen,

Jiang

et al. 2023

Electronics

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In solid-state high-voltage pulse generators, switches may be triggered on by fault due to electromagnetic interference, resulting in high through current and breakdown of switches. To generate rectangular high-voltage pulses, this paper proposes a solid-state Marx generator (SSMG) with fast recovery diodes to prevent through current. Only charging currents with the same direction flow through these fast recovery diodes breaks the short-circuit loops in and between stages. A 52-stage SSMG prototype based on the proposed circuit was developed. PSpice simulations and experiments were performed for comparison. It was found that the through current can rise to 250 A without any protection. With 10-μH protection inductors in each state, the through current amplitude drops to 50 A. Under the same condition, there is no continuous through current with the proposed fast recovery diodes. Furthermore, 22-kV repetitive rectangular pulses were also obtained in experiments. This proved that the proposed Marx generator can prevent the through current in power cells.

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MOSFET Gate Driver Circuit Design for High Repetitive (200 kHz) High Voltage (10 kV) Solid-State Pulsed-Power Modulator

Cited by 14 publications

References 20 publications

High‐speed high‐voltage solid‐state Marx generator based on SiC MOSFETs

High‐speed high‐voltage solid‐state Marx generator based on SiC MOSFETs

A Flexible Solid-State Marx Modulator Module Based on Discrete Magnetic Coupling Drivers

A Solid-State Marx Generator with Prevention of through Current for Rectangular Pulses

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