The aim of this paper is to evaluate the benefits of replacing Si Mosfets transistors with enhancement mode GaN transistors in a Half-Bridge Zero Voltage and Zero Current Switching Power Switching Converter (ZVZCPS). This converter is usually used as power supply of the travelling-wave tube amplifiers (TWTAs) in aerospace applications. In this paper, firstly the converter is theoretically analyzed, obtaining its operation, losses and efficiency equations, these equations are used to obtain optimizations maps based on the main system parameters. In this way, the ideal design parameters can be visually obtained. These optimization maps are the key to quantify the potential benefits of GaN transistors in this type of converters. Theoretical results show that using GaN transistors, the frequency of the converter can be pushed from 125kHz to 830kHz without sacrificing the converter efficiency. This frequency increase is directly related to reduction on the EPC size and weight.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Evaluation of Gallium Nitride Transistors in Electronic Power Conditioners for TWTAs


    Beteiligte:
    Blanes, J.M (Autor:in) / Garrigos, A. (Autor:in) / Gutierrez, R. (Autor:in) / Carrasco, J.A. (Autor:in) / Maset, E. (Autor:in) / Ejea, J.B. (Autor:in) / Sanchis-Kilders, E. (Autor:in) / Ferreres, A. (Autor:in) / Lizan, J. L. (Autor:in)


    Erscheinungsdatum :

    2015-03-01


    Format / Umfang :

    1489360 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    New generation of space TWTAs

    LEWIS, G. / SOSA, E. | AIAA | 1992


    L-band TWTAs for navigation satellites

    Ehret, P. / Vogt, H. / Peters, A. et al. | Tema Archiv | 2005


    Improved high power Ku-band TWTAs for DBS applications

    Lewis, G. / Tamashiro, R. / Sosa, E. | AIAA | 1994


    Qualification Results of a Lightweight EPC for Medium/High Power TWTAs

    Gambarara, M. / Cantamessa, M. / European Space Agency | British Library Conference Proceedings | 1995


    Qualification Results of a Lightweight EPC for Medium/High Power TWTAs

    Gambarara, M. / Cantamessa, M. | British Library Online Contents | 1995