TY - JOUR A1 - Veigl, Christoph A1 - Klaus, Benjamin A1 - Aigner, Benjamin A1 - Wagner, Manuel T1 - Universal Access Panel: A Novel Approach for Accessible Smart Homes and IoT JF - Computers Helping People with Special Needs. ICCHP-AAATE 2022. Lecture Notes in Computer Science KW - Home appliances KW - Disability KW - Accessibility KW - Multimodal User Interface KW - Smart Home Y1 - VL - 2022 IS - Vol. 13342 ER - TY - JOUR A1 - Yalcin, Faruk A1 - Himmelstoß, Felix T1 - Boost Converter based 3-phase AC-AC Active Tracking Voltage Regulator Controlled by a Robust Hybrid Control Method JF - Sakarya University Journal of Science KW - AC-AC regulator KW - active tracking KW - boost converter KW - three-phase KW - THD Y1 - VL - 2022 IS - 26(1) SP - 24 EP - 37 ER - TY - CHAP A1 - Widhalm, Dominik A1 - Goeschka, Karl M. A1 - Kastner, Wolfgang T1 - Undervolting on wireless sensor nodes: a critical perspective T2 - Proceedings of the 23rd International Conference on Distributed Computing and Networking (ICDCN 2022), 4-7 January 2022, Delhi, India KW - wireless sensor network KW - wireless sensor node KW - undervolting KW - energy efficiency KW - faults Y1 - U6 - http://dx.doi.org/https://doi.org/10.1145/3491003.3491018 ER - TY - JOUR A1 - Himmelstoß, Felix T1 - Improved positive output voltage super-lift Boost converter JF - WSEAS TRANSACTIONS on POWER SYSTEMS KW - DC/DC converter KW - feedforward control KW - boost converter KW - simulation Y1 - VL - 2022 IS - Vol. 17 SP - 68 EP - 75 ER - TY - THES A1 - Widhalm, Dominik T1 - Sensor Node Fault Detection in Wireless Sensor Networks: An Immune-inspired Approach KW - fault detection KW - sensor node KW - node-level diagnostics KW - wireless sensor network KW - anomaly detection Y1 - ER - TY - JOUR A1 - Himmelstoß, Felix A1 - Edelmoser, Karl T1 - Virtual three-phase laboratory exercise during pandemic situation JF - WSEAS TRANSACTIONS on ADVANCES in ENGINEERING EDUCATION KW - virtual laboratory KW - three-phase systems KW - phasor diagram KW - neutral line interruption KW - voltage displacement Y1 - VL - 2022 ER - TY - CHAP A1 - Himmelstoß, Felix A1 - Votzi, Helmut T1 - Modified d(2-d)/(1-d)2-Converter T2 - Proceedings of the Power Conversion and Intelligent Motion Conference (PCIM) 2022, 10-12 May, 2022 Nurenberg, Germany KW - DC/DC converter KW - quadratic converter KW - modeling Y1 - U6 - http://dx.doi.org/doi: 10.30420/565822200 SP - 1446 EP - 1453 ER - TY - JOUR A1 - Yalcin, Faruk A1 - Himmelstoß, Felix T1 - Single-phase Boost-type Active Tracking AC-AC Voltage Regulator with an Improved Hybrid Control Technique JF - Duzce University Journal of Science and Technology KW - Boost converter KW - AC-AC regulator KW - Single-phase KW - Active tracking Y1 - VL - 2022 IS - 10, issue 1 SP - 139 EP - 153 ER - TY - JOUR A1 - Yalcin, Faruk A1 - Himmelstoß, Felix T1 - Three-phase Active Tracking AC-AC Voltage Regulator based on Buck Converter with an Efficient Hybrid Control Technique JF - Düzce University Journal of Science & Technology KW - buck converter KW - AC-AC regulator KW - active tracking KW - THD Y1 - VL - 2022 IS - 10 SP - 537 EP - 554 ER - TY - CHAP A1 - Giovagnola, Jessica A1 - Fernandez, Miguel Molina A1 - Beneder, Roman A1 - Schmitt, Patrick A1 - Pegalajar Cuellar, Manuel A1 - Morales Santos, Diego Pedro T1 - Multisensor Avionics Architecture for BVLOS Drone Services T2 - Journal of Physics: Conference Series ; 12th IEEE EASN International Conference EASN2022, Spain, Barcelona, Oct. 18-21, 2022 KW - Heterogeneous Sensor Fusion KW - Multicore Microcontroller KW - Artifical Intelligence KW - BVLOS Drone Services Y1 - U6 - http://dx.doi.org/10.1088/1742-6596/2526/1/012084 VL - Volume 2526 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 - Eder, Gabriele A1 - Voronko, Yuliya A1 - Berger, Karl Anton A1 - Újvári, Gusztáv A1 - Knöbl, Karl A1 - Neumaier, Lukas T1 - UV-Fluoreszenz Bildanalyse zur frühzeitigen Detektion von PV-Leistungsdegradation T2 - Tagungsband der Österreichische Fachtagung für Photovoltaik und Stromspeicherung 2022 KW - Alterungstest KW - Ultraviolet Fluorescence KW - UVF Imaging KW - Lebendauerbestimmung Y1 - ER - TY - JOUR A1 - Himmelstoss, Felix T1 - Design of State-Space Controllers with the Help of Signal Flow Graphs Shown for a Buck Converter JF - WSEAS Transactions on Power Systems, Volume 21, 2022, pp. 421-429 KW - DC/DC converter KW - Buck converter KW - modelling KW - simulation KW - state space controller Y1 - U6 - http://dx.doi.org/10.37394/23202.2022.21.46 VL - Volume 21 SP - 421 EP - 429 ER - TY - JOUR A1 - Himmelstoss, Felix T1 - Third order converters with current output for driving LEDs JF - WSEAS Transactions on Power Systems KW - DC/DC converters KW - current output KW - limited duty cycle converter KW - simulation KW - modeling Y1 - U6 - http://dx.doi.org/10.37394/232016.2022.17.40 VL - Volume 17 SP - 402 EP - 409 ER - TY - CHAP A1 - Veigl, Christoph A1 - Klaus, Benjamin A1 - Aigner, Benjamin A1 - Wagner, Manuel T1 - Universal Access Panel: A Novel Approach for Accessible Smart Homes and IoT T2 - Computers Helping People with Special Needs / Proceedings of the 18th International Conference ICCHP-AAATE 2022, July 11-15, 2022, Lecco, Italy N2 - Although various standards and guidelines for accessible design exist, many modern digital devices lack even basic accessibility features. In particular, touchscreens without haptic feedback and a highly complex menu navigation impose serious hurdles for many people – especially for people with disabilities and elderly persons. In this work, we present the Universal Access Panel (UAP) for enabling barrier-free access to home appliances and IoT devices. The system offers a novel, radically simple, multimodal user interface consisting of just a few interaction elements for accessing dedicated functions of the connected home. Using established APIs and communication protocols such as HomeConnect or OpenHab, various domestic appliances, consumer products and smart home devices can be controlled from a single, multimodal interaction console. The system has been designed in cooperation with visually impaired accessibility experts and a user study was conducted with people from the target group. The results show a high overall usability of the prototype. KW - Home Appliances KW - Accessibility KW - Multimodal User Interface KW - Smart Homes KW - Internet-of-Things Y1 - U6 - http://dx.doi.org/https://doi.org/10.1007/978-3-031-08645-8_18 SP - 148 EP - 158 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 - Himmelstoss, Felix A1 - Votzi, Helmut T1 - Two-Stage Step-up Converter with Different Voltage Transformation Ratios depending on the Duty Cycle T2 - 20th International Conference on Renewable Energies and Power Quality (ICREPQ’22) Vigo (Spain), 27th to 29th July 2022 N2 - A two-stage converter with high output voltage ratio and reduced current stress of the inductors and partly reduced voltage stress is discussed. The function is explained with the help of voltage and current diagrams. The voltage transformation ratio changes between a quadratic step-up for duty cycles lower 0.5 and a double Boost converter for duty cycles higher than 0.5. Dimensioning hints, the control law for feed-forward controls, the transient when the supply is turned on is discussed and some simulations are given. A comparison to other two-stage converters is also treated. KW - Quadratic boost KW - double boost converter KW - feed-forward control KW - start-up Y1 - U6 - http://dx.doi.org/10.24084/repqj20.218 VL - Vol. 20 SP - 66 ER - TY - CHAP A1 - Himmelstoss, Felix T1 - Cascaded control of a Buck converter designed and simulated with the help of LTSpice T2 - 6th International European Congress on Interdisciplinary Scientific Research, Aug. 26-27, 2022, Bukarest, Rumania KW - education KW - power electronics converters KW - Buck converter KW - two-loop control KW - cascade control Y1 - SP - 1086 EP - 1096 ER - TY - CHAP A1 - Himmelstoss, Felix A1 - Edelmoser, Karl T1 - Liquid and surface disinfection with pulsed UVC LEDs T2 - 2nd Ahi Evran International Conference on Scientific Research, Kirshehir, Turkey, October 21-23, 2022 KW - disinfection KW - light emitting diode KW - ultraviolet UV light KW - pulsed power KW - DC/DC Converter Y1 - SP - 654 EP - 664 ER - TY - CHAP A1 - Himmelstoss, Felix A1 - Yaman, Ferhat A1 - Edelmoser, Karl T1 - Building block for a spot welder T2 - International Congress on Innovation Technologies & Engineering, Sept. 2-4, 2022, Izmir, Turkey, pp. 139-148 KW - spot welding KW - capacitor charging KW - pulse power KW - retrofit Y1 - SP - 139 EP - 148 ER -