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Showing 1 to 11 of 11 for “"power switch"”.
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Behavioral Modelling of the Transient and CdV/dt Induced Turn-on of a Hybrid High Power Switch Unit
The use of hybrid power switches is a practical and effective method of improving the performance of high power switching devices. An emerging strategy is to combine high power Si IGBTs with SiC MOSFETs to take advantage of the SiC MOSFETs superior switching speed and lower switching losses. While …
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Novel zero-voltage switching techniques for pulse-width-modulated converters
Two new classes of soft switching pulse-width-modulated (PWM) converters, named zero-voltage-switched (ZVS) PWM converters and zero-voltage-transition (ZVT) PWM converters, are proposed. The proposed ZVS-PWM converters combine the merits of conventional PWM and ZVS-QRC techniques. They are capable …
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Gate Driver for Phase Leg of Parallel Enhancement-Mode Gallium-Nitride (GaN) Transistors
With a higher power rating and broader application, Gallium nitride (GaN) is a promising next-generation power switch. The current four GaN HEMTs in paralleled phase leg that can block 400 V and conduct 200 A current is very beneficial, thus making the protection method on a GaN phase leg an urgent …
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Wide Bandwidth Control Electronics For Gan-Based Pebbs
… or dedicated hardware. A novel technology, Power Hardware in the Loop (PHIL), extends the capability and improves the methodology of HIL by allowing natural coupling between the connections of the simulation and the hardware. The key elements of the PHIL technology is the simulation/hardware …
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Development of HTS Transformer-Rectifier Flux Pumps
… and once at this low temperature, to power them. This requires the use of cryogenic systems and power supplies, which are often larger and more complex than the superconducting components. The aim of the work in this thesis is to develop better and more flexible power supplies for …
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Weight Estimation of Electronic Power Conversion Systems
Electronic power conversion systems with large number of power converters have a variety of applications, such as data center, electric vehicles and future smart "nanogrid" in residential home. Those systems could have very different architectures. For example, one system could be based on ac, dc …
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Advanced Semiconductor Device and Topology for High Power Current Source Converter
… semiconductor device and topology for the high power current source converter (CSC). The CSC is very attractive in high power applications due to its lower output dv/dt, easy regeneration capability and implicit short-circuit protection. Traditionally, either a symmetrical gate turn-off (GTO) …
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Investigation of Power Semiconductor Devices for High Frequency High Density Power Converters
The next generation of power converters not only must meet the characteristics demanded by the load, but also has to meet some specific requirements like limited space and high ambient temperature etc. This needs the power converter to achieve high power density and high temperature operation. It …
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Wake-up Radio based Approach to Low-Power and Low-Latency Communication in the Internet of Things
… is of paramount importance. An uninterrupted power supply is required by these nodes to carry out tasks such as sensing, data processing, and data communication. Of these, radio communication remains the primary battery consuming activity in wireless systems. Advances in MAC protocols have …
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Performance enhancement of GaN-based high-power hemts by selective-area growth using plasma-assisted molecular beam epitaxy
… the PAMBE-SAG technique to fabrication of high-power GaN-based switching HEMTs. First, a detailed study of the efficacy of SAG was conducted by comparing it with ion-implantation, a popular technique for improving Ohmic contacts. A consistent improvement in device performance by SAG was …