Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Christopher Joffe"'
Autor:
Christopher Joffe, Thomas Heckel, Holger Gerstner, Achim Endruschat, Christian Novak, Martin Marz
Publikováno v:
IEEE Transactions on Power Electronics. 34:9131-9145
This paper presents a universal SPICE model for field-effect transistors, which is independent from technology and semiconductor material. The created behavioral simulation model is based on a set of collected measurement data. The temperature-depend
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b2ee22a76626633dc38a56d306b67d6
https://doi.org/10.1109/tpel.2018.2889513
https://doi.org/10.1109/tpel.2018.2889513
Autor:
Stefan Ditze, Stefan Ehrlich, Nikolai Weitz, Marco Sauer, Frank Aßmus, Anne Sacher, Christopher Joffe, Christoph Seßler, Patrick Meißner
Publikováno v:
Electronics; Volume 11; Issue 12; Pages: 1818
This paper proposes a portable 11 kW off-board charger for electric vehicles. In the ac/dc stage, a three-phase power factor correction (PFC) in Vienna topology is chosen. The loss and volume of the PFC inductance are calculated over a wide range of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc87483e1f1ed72e5f90f4efc3791289
https://doi.org/10.3390/electronics11121818
https://doi.org/10.3390/electronics11121818
This article presents a fast numerical calculation method of realistic power losses for high-frequency litz wires. Explicitly, the imperfect structure of litz wires is considered when calculating losses due to an excitation current (skin losses) and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37b9a7d584c909b83e135aa364a86d58
https://publica.fraunhofer.de/handle/publica/264999
https://publica.fraunhofer.de/handle/publica/264999
Publikováno v:
2019 IEEE Applied Power Electronics Conference and Exposition (APEC).
This paper presents a comprehensive SPICE model of a power inductor including winding losses, eddy current losses within a soft magnetic ferrite material and hysteresis losses as well as the self-resonance. With an adaption of the well-known Steinmet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::209eafbf6af971ec53983bb17ba9dae0
https://doi.org/10.1109/apec.2019.8722180
https://doi.org/10.1109/apec.2019.8722180
Publikováno v:
Journal of Magnetism and Magnetic Materials. 497:166022
Electrical measurement is a common method to determine core losses of inductive components. In such core-loss measurements, current and voltage signal delays induce significant error due to phase measurement inaccuracies. In this paper, these inaccur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa4e5fee5651f04b84283fc05b21f631
https://doi.org/10.1016/j.jmmm.2019.166022
https://doi.org/10.1016/j.jmmm.2019.166022
Autor:
Thomas Heckel, Martin Marz, Christopher Joffe, Holger Gerstner, Achim Endruschat, Bernd Eckardt
Publikováno v:
2018 IEEE 6th Workshop on Wide Bandgap Power Devices and Applications (WiPDA).
This paper discusses the measurement of the input capacitances C gs and C gd of SiC and GaN power FETs in order to implement simulation models with an improved mapping of the drain-source voltage V ds and drain current id during the switching operati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44cc77ef4263cc075bc5e55c97f53d80
https://doi.org/10.1109/wipda.2018.8569089
https://doi.org/10.1109/wipda.2018.8569089
Publikováno v:
2018 IEEE Transportation Electrification Conference and Expo (ITEC).
In the field of conductive and inductive charging systems, contrary requirements such as high power density, small installation space, low power losses and costs need to be optimized for multiple operation points taking into account customer defined
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ecfe067f55409b5c0970465bf8af0dbf
https://doi.org/10.1109/itec.2018.8450100
https://doi.org/10.1109/itec.2018.8450100
Autor:
Martin Marz, Bernd Eckardt, Christopher Joffe, Holger Gerstner, Thomas Heckel, Achim Endruschat
Publikováno v:
2017 IEEE 5th Workshop on Wide Bandgap Power Devices and Applications (WiPDA).
This paper presents a procedure to acquire precise measurement data of the output characteristics with a custom-made setup. In comparison to datasheets and common curve tracer measurements, the measurement range is extended and the accuracy improved.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41b5a5d83c8b8dc1fb1ed786372f967e
https://doi.org/10.1109/wipda.2017.8170529
https://doi.org/10.1109/wipda.2017.8170529
Publikováno v:
2016 IEEE MTT-S International Conference on Microwaves for Intelligent Mobility (ICMIM).
This paper presents a novel data link for electric vehicles charged through inductive power transfer (IPT) systems. The data link uses the magnetically coupled coils as transmission medium. The data link is intended to transfer the instantaneous curr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c65ee98867c673aed1f9c7bab733f894
https://doi.org/10.1109/icmim.2016.7533929
https://doi.org/10.1109/icmim.2016.7533929
Publikováno v:
2016 IEEE Applied Power Electronics Conference and Exposition (APEC).
This paper focuses on the magnetic design of a multi-coil system for an inductive power transfer (IPT) system for charging electric vehicles with a small air gap between transmitter and receiver coils. Thus, external stray fields can be reduced and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14f5543d2fdf67e4e0c4ea2ee3e4798b
https://doi.org/10.1109/apec.2016.7468103
https://doi.org/10.1109/apec.2016.7468103