TY - CHAP A1 - Frohner, Matthias A1 - Windisch, Michael A1 - Sauermann, Stefan A1 - Sekora, Jiri A1 - Forjan, Mathias T1 - Organ Telemonitoring in Ex-vivo Nutrition Circulation of Porcine Lungs Using Interoperability Standards T2 - Proceedings of the 12th IFAC/IEEE International Conference on Programmable Devices and Embedded Systems (PDeS 2013) KW - Telemonitoring KW - Lung Simulator KW - Interoperability Y1 - 2018 SP - 335 EP - 340 ER - TY - CHAP A1 - Himmelstoß, Felix A1 - Votzi, Helmut A1 - Windisch, Michael T1 - Quadratic DC/DC converter with autotransformer at the output side T2 - Proceedings of 2020 IEEE 29th International Symposium on Industrial Electronics (ISIE), Delft, Netherlands, June 17-19, 2020 KW - DC/DC Converter KW - Quadratic KW - Tapped Inductor Y1 - 2020 SP - 767 EP - 772 ER - TY - CHAP A1 - Dziech, Andrzej A1 - Wassermann, Jakob A1 - Windisch, Michael A1 - Baran, Remigiusz A1 - Zeja, Andrzej A1 - Bogacki, Piotr T1 - A New Approach to Enhance Learning Data Sets for Object Classification T2 - Proceedings of the International Conference on Circuits, Systems, Communications and Computers, Crete, Greece, July 19-22, 2022 KW - poor dataset quality KW - CNN KW - SVT KW - shape descriptor KW - incremental learning Y1 - U6 - http://dx.doi.org/https://doi.org/10.1109/CSCC55931.2022.00024 ER - TY - CHAP A1 - Himmelstoss, Felix A1 - Windisch, Michael T1 - A capacitor-free driving stage for light emitting diodes T2 - 21th International Conference on Renewable Energies and Power Quality (ICREPQ’23) Madrid (Spain), 24th to 26th May 2023 N2 - Electrolytic capacitors have the disadvantage of pronounced aging. Non-electrolytic capacitors are therefore used in applications where long-life is important. In this paper we present a driving stage for LEDs without any capacitive elements. The basic topology is a Buck converter with one coil, one active, and one passive switch. Instead of the output capacitor, series connections of one or more LEDs and an active switch are connected. An additional diode is connected between the output and the input to achieve a current path, when all LED- paths are off. A nonlinear hysteresis controller is used to achieve a robust control. A system with three switchable LED-strings is analyzed. Design hints are given and the function is proved with the help of LTSpice simulations. The system can be used for lighting purposes with the possibility to change the chrominance. The potentiality to transmit data is also treated. KW - DC-to-DC converter KW - stray inductance KW - recuperation KW - active snubber Y1 - U6 - http://dx.doi.org/10.24084/repqj21.278 VL - Vol. 21 SP - 220 EP - 225 ER - TY - CHAP A1 - Himmelstoss, Felix A1 - Windisch, Michael T1 - Tapped inductor Boost with exploitation of the stray energy T2 - Proceedings of 2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC 2022), Brasov, Rumania, Sep. 25-29 N2 - Tapped inductor DC-to-DC converters are interesting circuits, the winding ratio of the two windings mounted on the same core change the voltage transformation ratio compared to the untapped inductor. The tapped inductor converters are especially useful, when high or low voltage transformation ratios have to be realized. The disadvantage of this concept is that the coupling between the two windings is not total and can be described by the stray or leakage inductance. This stray inductance leads to a high overvoltage at the active switch, and therefore also across other elements of the converter. After a short summery of the ideal tapped Boost converter, the design of an RCD snubber which limits the overvoltage is explained. To improve the efficiency of the converter two active snubber networks are treated, which feed the energy stored in the snubber capacitor into the input source or into the output circuit. Simulations are used to prove these considerations. KW - DC/DC converter KW - stray inductance KW - recuperation KW - active snubber Y1 - U6 - http://dx.doi.org/10.1109/PEMC51159.2022.9962849 SP - 75 EP - 80 ER - TY - CHAP A1 - Dziech, Andrzej A1 - Wassermann, Jakob A1 - Windisch, Michael A1 - Baran, Remigiusz A1 - Wojniak, Jakub A1 - Domin, Pawel T1 - Automatic classification of a full-thickness macular hole in optical coherence tomography images T2 - Proceedings of the International Conference on Circuits, Systems, Communications and Computers, Rhodes, Greece, July 19-22, 2023 KW - OCT KW - full-thickness macular hole KW - automatic classification KW - retinal segmentation Y1 - ER -