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Publication

IGCT Switching Behaviour Under Resonant Operating Conditions

Drazen Dujic, Dragan Stamenkovic
2018
Conference Papers

Abstract

In the area of medium voltage DC-DC conversion, LLC Series Resonant Converter (LLC-SRC) presentsitself as an attractive topology for implementation of the DC transformer. Employing Integrated Gate Commutated Thyristor (IGCT) as a switching element one can obtain very low conduction losses with this design, while considerably lowering the switching losses. Low current turn-off of the switch previously flooded with the high quasi sinusoidal load current is explored throughout this paper. Conclusions are supported by Technology Computer Aided Design (TCAD) simulations and by waveforms obtained from a dedicated test setup designed to emulate the conduction and switching conditions present in LLC-SRC.

Official source

https://infoscience.epfl.ch/entities/publication/305288a5-b375-4b66-bb97-4cf0b49705f0

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Drazen Dujic, Dragan Stamenkovic
2018
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/305288a5-b375-4b66-bb97-4cf0b49705f0

About this result

Related concepts (26)

Power inverter

A power inverter, inverter or invertor is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC). The resulting AC frequency obtained depends on the particular device employed. Inverters do the opposite of rectifiers which were originally large electromechanical devices converting AC to DC. The input voltage, output voltage and frequency, and overall power handling depend on the design of the specific device or circuitry. The inverter does not produce any power; the power is provided by the DC source.

Rectifier

A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The reverse operation (converting DC to AC) is performed by an inverter. The process is known as rectification, since it "straightens" the direction of current. Physically, rectifiers take a number of forms, including vacuum tube diodes, wet chemical cells, mercury-arc valves, stacks of copper and selenium oxide plates, semiconductor diodes, silicon-controlled rectifiers and other silicon-based semiconductor switches.

Switched-mode power supply

A switched-mode power supply (switching-mode power supply, switch-mode power supply, switched power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a DC or AC source (often mains power, see AC adapter) to DC loads, such as a personal computer, while converting voltage and current characteristics.

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