High integration of power electronic converters enabled by 3D printing

Aachen / ISEA (2019) [Book, Dissertation / PhD Thesis]

Page(s): 1 Online-Ressource (viii, 146 Seiten) : Illustrationen, Diagramme


Since wide-bandgap power semiconductors became commercially available, a trend towards increasing power densities of power electronic systems can be observed. The advantages of wide-bandgap power components can only be fully exploited in conjunction with low-loss inductive components that are suitable for high switching frequencies. For this reason, a concept for power inductors based on 3D-printed bobbins is developed, featuring excellent high-frequency characteristics. Conventional fluid coolers typically feature a large volume and a heavy weight, which counteracts a high power density. To minimize size and weight, 3D-printed miniature fluid coolers are developed. Prototypes of the developed concepts for high-frequency power inductors and 3D-printed fluid coolers are used to realize a highly-integrated boost converter. Despite the use of discrete power semiconductor devices, a power density of 98 kW/dm³ is demonstrated.



Wienhausen, Arne Hendrik


de Doncker, Rik W.
Vescan, Andrei


  • REPORT NUMBER: RWTH-2019-08746