Stability, reliability, and robustness of GaN power devices: A review

JP Kozak, R Zhang, M Porter, Q Song… - … on Power Electronics, 2023 - ieeexplore.ieee.org
Gallium nitride (GaN) devices are revolutionarily advancing the efficiency, frequency, and
form factor of power electronics. However, the material composition, architecture, and …

Output capacitance loss of GaN HEMTs in steady-state switching

Q Song, R Zhang, Q Li, Y Zhang - IEEE Transactions on Power …, 2023 - ieeexplore.ieee.org
The output capacitance () loss, a loss produced when the device's output capacitor is
charged and discharged, has become a concern for GaN high electron mobility transistors …

Origin of soft-switching output capacitance loss in cascode GaN HEMTs at high frequencies

Q Song, R Zhang, Q Li, Y Zhang - IEEE Transactions on Power …, 2023 - ieeexplore.ieee.org
Output capacitance (C OSS) loss (E DISS) is produced when the C OSS of a power device is
charged and discharged, which ideally should be a lossless process. This loss was recently …

Evaluation of Dynamic RON, Coss Loss, and Short-Circuit Ruggedness of 650V and 1200V Industrial Vertical GaN JFETs

X Yang, Q Song, R Zhang, B Wang… - … Devices and ICs …, 2024 - ieeexplore.ieee.org
Dynamic on-resistance R_ON, hysteresis output capacitance (Coss) loss, and short-circuit
(SC) capability are three crucial reliability and robustness concerns facing many GaN high …

Output Capacitance Loss in Wide-bandgap and Superjunction Power Transistors: Impact of Switching Voltage and Current

Q Song, Q Li, Y Zhang - 2023 IEEE 10th Workshop on Wide …, 2023 - ieeexplore.ieee.org
Output capacitance (C OSS) loss (E DISS) is a loss recently found to incur in a power
semiconductor device when its C OSS is charged and discharged, which ideally should be a …

Impact of Conduction Current on Output Capacitance Loss in GaN HEMTs

Q Song, R Zhang, Q Li, Y Zhang - 2023 IEEE Applied Power …, 2023 - ieeexplore.ieee.org
Output capacitance (Coss) loss is generated when the Coss of a power device is charged
and discharged, which is ideally a lossless process. This work deploys a recently developed …

In-Situ Extraction of Time-Resolved on GaN Power Device Based on a Modified Hard Switching Platform

Y Huang, Q Jiang, S Huang, Y Yin… - … Devices and ICs …, 2024 - ieeexplore.ieee.org
C_OSS loss (E_OSS) and Dynamic R_ON, which combine switching loss and conduction
loss in currently available GaN HEMTs, severely limit their performance in hard switching …

Investigation on Physical Origins of Output Capacitance Loss in Cascode GaN HEMTs

Q Song, R Zhang, Q Li, Y Zhang - 2023 IEEE Applied Power …, 2023 - ieeexplore.ieee.org
Output capacitance loss is generated when the output capacitor of a power device is
charged and discharged in its OFF state, which ideally should be a lossless process. This …

Unclamped-inductive-switching Based Output Capacitance Loss Characterization with Extended Test Capability

Q Song, Q Li, Y Zhang - 2024 IEEE Applied Power Electronics …, 2024 - ieeexplore.ieee.org
Output capacitance (C OSS) loss (E DISS) is a power loss recently revealed in a power
semiconductor device when its C OSS is charged and discharged, which ideally should be a …

Robustness and Stability of Gallium Nitride Transistors in Dynamic Power Switching

Q Song - 2024 - vtechworks.lib.vt.edu
Wide-bandgap gallium nitride (GaN) high electron mobility transistors (HEMTs) are gaining
increased adoption in applications like mobile electronics and data centers. Benefitting from …