
Dr Jiaqi Yan
BEng, PhD
Expertise
Power Electronics; Pulsed Power Technology; Gas Discharge Plasma; High Voltage and Insulation
Current positions
Senior Research Associate
School of Electrical, Electronic and Mechanical Engineering
Contact
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Biography
Research interests
Wide bandgap devices based on SiC and GaN can switch extremely fast, e.g., current transitions in excess of 10 A/ns and voltage transitions in excess of 100 V/ns, which significantly promotes the development of high-speed power electronics and leads to higher efficiency. However, a challenge in suppressing excessive overshoots, ringing, EMI, etc, is also introduced. I am interested in developing advanced sensors and gate driving techniques to visualize the fast transitions and “quieten down” the switching process of wide bandgap power transistors. Meanwhile, I am also interested in developing high-voltage pulsed power generators based on solid-state or gas-discharge devices, as well as their applications in plasma driving, electric propulsion, advanced sensors, etc.
Publications
Recent publications
15/04/2025Millimetre-scale 200 MHz Bandwidth Magnetic Field Sensor to Measure Switching Current in SiC Module Terminals with Minimal Insertion Inductance
IEEE Transactions on Power Electronics
‘Infinity Gate Sensor’: a Differential Magnetic Field Sensor for Measuring Gate Current of SiC Power Transistors
PCIM Europe 2024; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
Instrumentation Requirements for Fast 130+ V/ns Switching of 1700 V, 35 mΩ SiC MOSFETs
PCIM Europe 2024; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
Underwater surface discharge characteristics and multi-physical effects with conductive coating load under fast electric pulse
Journal of Physics D: Applied Physics
A Miniaturized Sealed-Off Double-Gap Pseudospark Switch for High Power and High Repetition Rate Pulsed Discharge Applications
IEEE Transactions on Industry Applications