@article{Himmelstoss,
  author    = {Himmelstoss, Felix},
  title     = {Design of State-Space Controllers with the Help of Signal Flow Graphs Shown for a Buck Converter},
  series = {WSEAS Transactions on Power Systems, Volume 21, 2022, pp. 421-429},
  volume    = {Volume 21},
  journal   = {WSEAS Transactions on Power Systems, Volume 21, 2022, pp. 421-429},
  doi       = {10.37394/23202.2022.21.46},
  pages     = {421 -- 429},
  subject      = {DC/DC converter},
  language  = {en}
}
@article{HimmelstossVotzi,
  author    = {Himmelstoss, Felix and Votzi, Helmut},
  title     = {Simple Chargers for a Small DC Micro-Grid for a Home Emergency Power System},
  series = {Electricity},
  volume    = {4},
  journal   = {Electricity},
  number    = {3},
  doi       = {https://doi.org/10.3390/electricity4030013},
  pages     = {216 -- 234},
  subject      = {micro-grid},
  language  = {en}
}
@article{Himmelstoss,
  author    = {Himmelstoss, Felix},
  title     = {Quasi Resonant Zero Current Switching Modified Boost Converter (QRZCSMBC)},
  series = {WSEAS Transactions on Power Systems},
  volume    = {Volume 22},
  journal   = {WSEAS Transactions on Power Systems},
  doi       = {10.37394/23201.2023.22.8},
  pages     = {55 -- 62},
  subject      = {DC/DC converter},
  language  = {en}
}
@article{Himmelstoss,
  author    = {Himmelstoss, Felix},
  title     = {Third order converters with current output for driving LEDs},
  series = {WSEAS Transactions on Power Systems},
  volume    = {Volume 17},
  journal   = {WSEAS Transactions on Power Systems},
  doi       = {10.37394/232016.2022.17.40},
  pages     = {402 -- 409},
  subject      = {DC/DC converters},
  language  = {en}
}
@inproceedings{HimmelstossWindisch,
  author    = {Himmelstoss, Felix and Windisch, Michael},
  title     = {A capacitor-free driving stage for light emitting diodes},
  series = {21th International Conference on Renewable Energies and Power Quality (ICREPQ'23) Madrid (Spain), 24th to 26th May 2023},
  volume    = {Vol. 21},
  booktitle = {21th International Conference on Renewable Energies and Power Quality (ICREPQ'23) Madrid (Spain), 24th to 26th May 2023},
  doi       = {10.24084/repqj21.278},
  pages     = {220 -- 225},
  abstract  = {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.},
  subject      = {DC-to-DC converter},
  language  = {en}
}
@inproceedings{HimmelstossWindisch,
  author    = {Himmelstoss, Felix and Windisch, Michael},
  title     = {Tapped inductor Boost with exploitation of the stray energy},
  series = {Proceedings of 2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC 2022), Brasov, Rumania, Sep. 25-29},
  booktitle = {Proceedings of 2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC 2022), Brasov, Rumania, Sep. 25-29},
  doi       = {10.1109/PEMC51159.2022.9962849},
  pages     = {75 -- 80},
  abstract  = {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.},
  subject      = {DC/DC converter},
  language  = {en}
}
@inproceedings{HimmelstossVotzi,
  author    = {Himmelstoss, Felix and Votzi, Helmut},
  title     = {Two-Stage Step-up Converter with Different Voltage Transformation Ratios depending on the Duty Cycle},
  series = {20th International Conference on Renewable Energies and Power Quality (ICREPQ'22) Vigo (Spain), 27th to 29th July 2022},
  volume    = {Vol. 20},
  booktitle = {20th International Conference on Renewable Energies and Power Quality (ICREPQ'22) Vigo (Spain), 27th to 29th July 2022},
  doi       = {10.24084/repqj20.218},
  pages     = {66},
  abstract  = {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.},
  subject      = {Quadratic boost},
  language  = {en}
}
@inproceedings{HimmelstossHofschweigerVotzi,
  author    = {Himmelstoss, Felix and Hofschweiger, Andreas and Votzi, Helmut},
  title     = {Quadratic Combined Forward-Flyback Converter},
  series = {Power Conversion and Intelligent Motion Conference (PCIM) 2023, May 9-11, 2023 Nurenberg, Germany},
  booktitle = {Power Conversion and Intelligent Motion Conference (PCIM) 2023, May 9-11, 2023 Nurenberg, Germany},
  doi       = {10.30420/566091315},
  pages     = {1446 -- 1453},
  subject      = {DC/DC converter},
  language  = {en}
}
@inproceedings{Himmelstoss,
  author    = {Himmelstoss, Felix},
  title     = {Cascaded control of a Buck converter designed and simulated with the help of LTSpice},
  series = {6th International European Congress on Interdisciplinary Scientific Research, Aug. 26-27, 2022, Bukarest, Rumania},
  booktitle = {6th International European Congress on Interdisciplinary Scientific Research, Aug. 26-27, 2022, Bukarest, Rumania},
  pages     = {1086 -- 1096},
  subject      = {education},
  language  = {en}
}
@inproceedings{HimmelstossErtlVotzi,
  author    = {Himmelstoss, Felix and Ertl, Benjamin and Votzi, Helmut},
  title     = {A new limited duty cycle step-up converter},
  series = {International European Conference on Interdisciplinary Scientific Research, July 13-15, 2023, Rome, Italy},
  booktitle = {International European Conference on Interdisciplinary Scientific Research, July 13-15, 2023, Rome, Italy},
  pages     = {811 -- 833},
  subject      = {DC/DC converter},
  language  = {en}
}
@inproceedings{HimmelstossEdelmoser,
  author    = {Himmelstoss, Felix and Edelmoser, Karl},
  title     = {Liquid and surface disinfection with pulsed UVC LEDs},
  series = {2nd Ahi Evran International Conference on Scientific Research, Kirshehir, Turkey, October 21-23, 2022},
  booktitle = {2nd Ahi Evran International Conference on Scientific Research, Kirshehir, Turkey, October 21-23, 2022},
  pages     = {654 -- 664},
  subject      = {disinfection},
  language  = {en}
}
@inproceedings{HimmelstossYamanEdelmoser,
  author    = {Himmelstoss, Felix and Yaman, Ferhat and Edelmoser, Karl},
  title     = {Building block for a spot welder},
  series = {International Congress on Innovation Technologies \& Engineering, Sept. 2-4, 2022, Izmir, Turkey, pp. 139-148},
  booktitle = {International Congress on Innovation Technologies \& Engineering, Sept. 2-4, 2022, Izmir, Turkey, pp. 139-148},
  pages     = {139 -- 148},
  subject      = {spot welding},
  language  = {en}
}
@inproceedings{Himmelstoss,
  author    = {Himmelstoss, Felix},
  title     = {Concept to change the voltage transformation ratio of a DC/DC converter},
  series = {Cukurova 9th International Scientific Researches Conference, Oct. 9-11, 2022, Adana, Turkey, pp. 258-273},
  booktitle = {Cukurova 9th International Scientific Researches Conference, Oct. 9-11, 2022, Adana, Turkey, pp. 258-273},
  pages     = {258 -- 273},
  subject      = {DC/DC converter},
  language  = {en}
}
@inproceedings{Himmelstoss,
  author    = {Himmelstoss, Felix},
  title     = {Three DC/DC Converters with continuous input and output current for LED applications},
  series = {International Conference on Engineering Sciences ICES, Baku, Azerbeijan, Nov. 11-12, 2022},
  booktitle = {International Conference on Engineering Sciences ICES, Baku, Azerbeijan, Nov. 11-12, 2022},
  pages     = {335 -- 347},
  subject      = {DC/DC converter},
  language  = {en}
}
@inproceedings{Himmelstoss,
  author    = {Himmelstoss, Felix},
  title     = {Modified Boost Converter with additional Boehringer network},
  series = {10th International Zeugma Conference on Scientific Research, June 25-26, 2023, Gaziantep, Turkey, pp. 404-411},
  booktitle = {10th International Zeugma Conference on Scientific Research, June 25-26, 2023, Gaziantep, Turkey, pp. 404-411},
  pages     = {404 -- 411},
  subject      = {DC/DC converter},
  language  = {en}
}
@inproceedings{Himmelstoss,
  author    = {Himmelstoss, Felix},
  title     = {High Step-Up Converter with Continuous Input and Output Current},
  series = {5th International Ankara Multidisciplinary Studies Congress, Ankara, Turkey, Jan. 27-29, 2023},
  booktitle = {5th International Ankara Multidisciplinary Studies Congress, Ankara, Turkey, Jan. 27-29, 2023},
  pages     = {978 -- 989},
  subject      = {power converter},
  language  = {en}
}