Artículos en revistas:
High-Efficiency High-Bandwidth Four-Quadrant Fully Digitally Controlled GaN-Based Tracking Power Supply System for Linear Power Amplifiers
High-Efficiency High-Bandwidth Four-Quadrant Fully Digitally Controlled GaN-Based Tracking Power Supply System for Linear Power Amplifiers
Año:2019
Áreas de investigación
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Ingeniería eléctrica, electrónica y automática
Datos
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Descripción
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| The ever-rising demands for a high efficiency and high power density in the power electronics market are motivating an intensive research in the area of wide bandgap (WBG) devices, with enhancement-mode gallium-nitride (GaN) highelectron-mobility transistors as the main representatives. Compared to the conventional silicon devices with the same voltage rating and ON-state resistance, the parasitic capacitances of GaN transistors are smaller up to 10 times. Although their turn-off energy is very small, for the high switching speeds, zero-voltage switching is preferable to avoid the turn-on power losses, especially in the application where the devices operate at megahertz switching frequencies and where the blocking voltages are high. This is also very important from the thermal point of view, due to the poor junction to ambient thermal impedance of the packaging, in order to avoid high junction temperatures. Moreover, for a successful design of a power converter, the magnetic materials optimized for the high-frequency range are a must, with a manganese-zinc ferrites as the most promising solution. In this paper, an 8-W, 1-MHz switching frequency fully digitally controllable bipolar tracking power supply with a 100-kHz small-signal bandwidth, the tracking speeds up to 2 V/?s, and the maximum efficiency beyond 94% is shown, where a symbiosis of WBG devices and the newest generation high-frequency magnetic materials manifests the clear benefits. | |
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Internacional
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Si |
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JCR del ISI
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Si |
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Título de la revista
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Ieee Journal of Emerging And Selected Topics in Power Electronics |
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ISSN
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2168-6777 |
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Factor de impacto JCR
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4,728 |
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Información de impacto
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Volumen
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7 |
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DOI
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10.1109/JESTPE.2018.2884959 |
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Número de revista
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2 |
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Desde la página
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664 |
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Hasta la página
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678 |
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Mes
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JUNIO |
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Ranking
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Participantes
- Autor: Vladan Lazarevic (UPM)
- Autor: Iñigo Zubitur Sasturain (UPM)
- Autor: Miroslav Vasic Matic (UPM)
- Autor: Jesus Angel Oliver Ramirez (UPM)
- Autor: Pedro Alou Cervera (UPM)
- Autor: Gregory Patchin (Apex Microtechnology)
- Autor: Jens Eltze (Apex Microtechnology)
- Autor: Jose Antonio Cobos Marquez (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
- Creador: Centro o Instituto I+D+i: Centro de Electrónica Industrial. CEI
- Departamento: Automática, Ingeniería Eléctrica y Electrónica e Informática Industrial
S2i 2023 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)