Comprehensive Study on Gate Driver for SiC-MOSFETs with Gate Boost

Yamaguchi, Koji; Katsura, Kenshiro; Yamada, Tatsuro; Sato, Yukihiko

doi:10.1541/ieejjia.7.218

Cited by 37 publications

(10 citation statements)

References 25 publications

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“…There is much experience on the deterioration of the MOS gate by the high voltage. The gate voltage control for optimizing the tradeoff between the switching loss and the electronic and magnetic noise is another technical challenges . With the solution of these essential technical challenges for the application of SiC MOSFET, their applications to railway vehicles are expected to improve.…”

Section: Power Electronics Solutions For Rolling Stockmentioning

confidence: 99%

“…From the view point of the shorter switching durations, less parasitic inductance is preferable to avoid the overvoltage due to the higher current change ratio. On the other hand, because of the current depress effect in the short-circuit failure mode of the semiconductor devices, the The gate voltage control for optimizing the tradeoff between the switching loss and the electronic and magnetic noise is another technical challenges [32]. With the solution of these essential technical challenges for the application of SiC MOSFET, their applications to railway vehicles are expected to improve.…”

Section: Technical Challenge For Sic Mosfet Application For Railway Vmentioning

confidence: 99%

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Recent trends in power electronics applications as solutions in electric railways

Hayashiya

Kondo

2020

IEEJ Transactions Elec Engng

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Certain applications of power electronics for railway vehicle traction systems and fixed installations are reviewed and future possibilities considering technical and social trends around railway industry are mentioned in this paper. First of all, some particularities of railway load and traction power supply system are summarized as problems to be solved by power electronics technologies. Such technologies for fixed installations and vehicle traction systems are presented and future possibilities for higher performance, minimization, and improved resilience of railway system are pointed out. © 2020 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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Section: Power Electronics Solutions For Rolling Stockmentioning

confidence: 99%

Section: Technical Challenge For Sic Mosfet Application For Railway Vmentioning

confidence: 99%

Recent trends in power electronics applications as solutions in electric railways

Hayashiya

Kondo

2020

IEEJ Transactions Elec Engng

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“…However, this technique cannot mitigate negative voltage spikes [27]. The soft gate technique and active driver-controlled circuit are presented in Reference [28]. A novel technique for the driver gate controller to suppress the negative voltage spikes is introduced in Reference [29].…”

Section: Introductionmentioning

confidence: 99%

Suppressing Voltage Spikes of MOSFET in H-Bridge Inverter Circuit

Aboadla

Khan²,

Kadir

et al. 2021

Electronics

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Power electronics devices are made from semiconductor switches such as thyristors, MOSFETs, and diodes, along with passive elements of inductors, capacitors, and resistors, and integrated circuits. They are heavily used in power processing for applications in computing, communication, medical electronics, appliance control, and as converters in high power DC and AC transmission in what is now called harmonized AC/DC networks. A converter's operation is described as a periodic sequencing of different modes of operation corresponding to different topologies interfaced to filters made of passive elements. The performance of converters has improved considerably using high switching frequency, which leads to a significant improvement in a power converter's performance. However, the high dv/dt through a fast-switching transient of the MOSFET is associated with parasitic components generating oscillations and voltage spikes having adverse effects on the operation of complementary switches, thereby affecting the safe operation of the power devices. In this paper, the MOSFET gate-driver circuit performance is improved to suppress the H-Bridge inverter's voltage spikes. The proposed technique is a simple improvement to the gate driver based on the IR2112 driver (IC) by adding a capacitor to attenuate the effect of parasitic components and the freewheeling current, suppressing the negative voltage spikes. This paper’s main contribution is to improve the gate driver circuit's capability for suppressing the voltage spikes in the H-Bridge inverter. The improved gate driver circuit is validated experimentally and is compared with the conventional gate driver. The experimental results show that the proposed technique can effectively suppress the MOSFET’s voltage spikes and oscillations.

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“…Such devices make the circuit possible to operate at a higher switching frequency compared with the use of conventional devices. This allows an increase of power density, by reducing the size of the passive elements [1], [2].…”

Section: Introductionmentioning

confidence: 99%

Design of an Integrated Air Coil for Current Sensing

Kuwabara

Wãda

Guichon

et al. 2020

IEEE J. Emerg. Sel. Topics Power Electron.

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This article proposes a design procedure of an integrated air coil in a laminated bus bar for current sensing. The concept is based on an air coil inserted into the insulators inside the laminated bus bar, avoiding the use of intrusive current sensors with an additional stray inductance. First, the basic principle of the integrated current sensor is described, and the relationship between the mutual inductance and the structure of the air coil is discussed. Next, the frequency characteristic of the current sensor obtained based on an equivalent circuit is detailed, the parameters of which are derived from the sensor structure. A postprocessing method is proposed to achieve a 100-MHz frequency bandwidth. A prototype of the current sensor is designed based on the proposed design procedure, and the frequency characteristic is evaluated. The validations of the design procedure and the postprocessing method are confirmed experimentally.

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Comprehensive Study on Gate Driver for SiC-MOSFETs with Gate Boost

Cited by 37 publications

References 25 publications

Recent trends in power electronics applications as solutions in electric railways

Recent trends in power electronics applications as solutions in electric railways

Suppressing Voltage Spikes of MOSFET in H-Bridge Inverter Circuit

Design of an Integrated Air Coil for Current Sensing

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