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Current source gate drivers provide greatly improved power converter performance compared to standard voltage mode drivers, but they typically require 4 on-chip MOSFETs to control each power MOSFET, making the drivers more costly. Researchers in the department of Electrical Engineering at Queen’s University in Kingston, Ontario, Canada have developed...

Published: 5/19/2015 | Inventor(s): Yan-Fei Liu, Zhiliang Zhang

Keywords(s):

Category(s): Power Electronics, Electronics, Computer Hardware

Optimal Control for DC-DC Buck Converters

Buck converters are the most commonly used power conversion technology in PCs for producing the high current low voltage CPU, GPU and RAM supplies. As core voltages reduce and current levels increase, it is becoming increasingly difficult to meet efficiency, regulation and cost requirements of next generation systems. Researchers in the Department...

Published: 5/19/2015 | Inventor(s): Yan-Fei Liu, Liang Jia

Keywords(s):

Category(s): Power Electronics

Advanced Current Source Gate Driver for Buck Converters

Buck converters are still the most commonly used technique for power conversion in PCs, for producing the high current low voltage supplies for CPUs. Researchers in the Department of Computer and Electrical Engineering at Queen’s University in Kingston Ontario Canada have developed a high performance Current Source Gate Driver that greatly improves...

Published: 5/19/2015 | Inventor(s): Yan-Fei Liu, Zhiliang Zhang, Jizhen Fu, Jiahong Wei

Keywords(s):

Category(s): Electronics, Power Electronics

Novel Efficiency Boost Technology for Smart SR Drivers in LLC based DC-DC Converters

Today’s PC and Server power supplies employ 400VDC à 12VDC LLC power converters which typically have 91-92% efficiencies when using standard schottky diodes for rectification. Using MOSFETs as synchronous rectifiers increases efficiency to 94-95% due mainly to their very low ON resistance. Researchers in the Department of Electrical Engineering...

Published: 6/22/2022 | Inventor(s): Yan-Fei Liu, Dong Wang

Keywords(s):

Category(s): Electronics, Power Electronics