User profiles for Zhehui Guo
Zhehui GuoMember of R&D Staff at Delta Electronics Verified email at deltaww.com Cited by 394 |
A fiber-optic-less 50-MHz single transformer isolated gate driver with fault feedback for 10-kV SiC MOSFETs
This article presents a novel fiber-optic-less 50-MHz single transformer isolated gate driver (GD)
for medium voltage (MV) SiC mosfets. A unique edge-interval-OFF modulation scheme …
for medium voltage (MV) SiC mosfets. A unique edge-interval-OFF modulation scheme …
The Effects of PWM With High dv/dt on Partial Discharge and Lifetime of Medium-Frequency Transformer for Medium-Voltage (MV) Solid State Transformer …
The medium-frequency (MF) transformer in a phase-shift modulated dc solid state transformer
(SST) is prone to partial discharge (PD) that impacts the system reliability and lifetime. …
(SST) is prone to partial discharge (PD) that impacts the system reliability and lifetime. …
A MHz-pulse-transformer isolated gate driver with signal-power integrated transmission for medium-voltage SiC MOSFETs
The conventional isolated gate driver (GD) solution for the medium-voltage (MV) SiC mosfet
separates the signal and power transmissions and requires a bulky GD power supply (GDPS…
separates the signal and power transmissions and requires a bulky GD power supply (GDPS…
A self-voltage balanced hybrid three-level MV inverter using 3.3-kV SiC MOSFET module with false-trigger-proof design
This article presents a self-voltage balanced three-level (3L) active-neutral-point-clamped (ANPC)
medium-voltage (MV) inverter. Two switches of this inverter operate at high frequency (…
medium-voltage (MV) inverter. Two switches of this inverter operate at high frequency (…
An online monitoring method of circuit parameters for variable on-time control in CRM boost PFC converters
This paper proposes an improved zero current detection for critical conduction mode (CRM)
control, which can compensate the input current distortion caused by the signal propagation …
control, which can compensate the input current distortion caused by the signal propagation …
Dv/dt Sensing-Based Short-Circuit Protection for Medium-Voltage SiC mosfets
This letter presents a novel short-circuit protection (SCP) for medium-voltage (MV) SiC mosfet
s, that utilizes the turn- on dv/dt of SiC mosfet within a predetermined interval to monitor SC …
s, that utilizes the turn- on dv/dt of SiC mosfet within a predetermined interval to monitor SC …
Adaptive LUT-based variable on-time control for CRM boost PFC converters
This paper proposes an adaptive look-up-table (LUT)-based variable on-time (VOT) control
for CRM boost PFC converters, which combines advantages of conventional LUT method …
for CRM boost PFC converters, which combines advantages of conventional LUT method …
Simple analog-based accurate variable on-time control for critical conduction mode boost power factor correction converters
In order to suppress the input current distortion of critical conduction mode (CRM) boost
power factor correction (PFC) converters, variable on-time (VOT) control has been adopted in …
power factor correction (PFC) converters, variable on-time (VOT) control has been adopted in …
Partial discharge characterization of solid-dielectric-based transformer under high frequency high dv/dt PWM voltage for MV applications
In this paper, the partial discharge (PD) of a solid-dielectric-based coreless transformer
applied in an isolated gate driver power supply for 10-kV SiC MOSFETs is experimentally …
applied in an isolated gate driver power supply for 10-kV SiC MOSFETs is experimentally …
A low-voltage low-loss active reflected wave canceller for a medium-voltage SiC motor drive based on a generalized multilevel inverter topology
Multilevel topologies with SiC devices for medium-voltage (MV) motor drive have advantages
to reduce the harmonics and device voltage stress and increase efficiency. However, with …
to reduce the harmonics and device voltage stress and increase efficiency. However, with …