Z
Zheyu Zhang
Researcher at Clemson University
Publications - 106
Citations - 3027
Zheyu Zhang is an academic researcher from Clemson University. The author has contributed to research in topics: Power semiconductor device & Switching time. The author has an hindex of 23, co-authored 103 publications receiving 2073 citations. Previous affiliations of Zheyu Zhang include Southwest University & General Electric.
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Active Gate Driver for Crosstalk Suppression of SiC Devices in a Phase-Leg Configuration
TL;DR: In this paper, the authors proposed two active gate assist circuits to suppress crosstalk on the basis of the intrinsic properties of SiC power devices, and the experimental results show that both active gate drivers are effective to suppress CRSST, enabling turn-on switching losses reduction by up to 17% and negative spurious gate voltage minimization without the penalty of decreasing the switching speed.
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Methodology for Wide Band-Gap Device Dynamic Characterization
TL;DR: Based on a phase-leg power module built with 1200-V/50-A SiC MOSFETs, the test results show that this method can accurately evaluate the switching loss of both the upper and lower switches by detecting only one switching current and voltage, and it is immune to V–I timing misalignment errors.
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Evaluation of Switching Performance of SiC Devices in PWM Inverter-Fed Induction Motor Drives
TL;DR: In this article, the authors investigated the factors that limit the SiC switching performance from both the motor side and inverter side, including the load characteristics of induction motor and power cable, two more phase legs for the three phase PWM inverter in comparison with the DPT, and the parasitic capacitive coupling effect between power devices and heat sink.
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Overview of high voltage sic power semiconductor devices: development and application
Shiqi Ji,Zheyu Zhang,Fred Wang +2 more
TL;DR: In this paper, the development and status of high voltage (HV) silicon carbide (SiC) power semiconductor devices has attracted much attention in recent years, and the technologies and challenges for HV SiC device application in converter design are discussed.
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Overview of Silicon Carbide Technology: Device, Converter, System, and Application
Fei Wang,Zheyu Zhang +1 more
TL;DR: In this paper, the benefits of silicon carbide (SiC) based power electronics for converters and systems, as well as their ability in enabling new applications are discussed, and challenges and research trends on the design and application of SiC power electronics are also discussed.