TY - THES U1 - Master Thesis A1 - Koers, Lars T1 - Setup of test environments based on a Xilinx Zynq SoC for measuring the leakage current and for radiation qualifcation of SRAM based FPGAs N2 - This thesis discusses the development of test environments using Xilinx Zynq System on Chip (SoC) for measuring leakage currents and radiation qualification of Static Random Access Memory (SRAM) based Field Programmable Gate Arrays (FPGAs) at European Organisation for Nuclear Research (CERN). The effects of radiation on electronic components are explained, followed by an introduction to the FPGAs used. The GateMate FPGAs leakage current is measured in its application area with respect to temperature and core voltages. A comparable testing environment is used from the tester to the tested device, as it will later be used at CERN. The GateMate is being prepared in this setup for the finalization of radiation qualification at CERN, to be transferred later. For this purpose, the basic tests are explained and the outstanding tests are then carried out. The Lattice iCE40 UltraLite FPGA is used in an initial application test to determine its suitability for further radiation qualification tests at CERN. The analysis and presentation of the test results are followed by a summary and outlook. N2 - Diese Arbeit behandelt die Entwicklung von Testumgebungen mit einem Xlinix Zynq SoC zur Messung von Leckströmen sowie der Strahlenqualifizierung von SRAM basierten FPGAs am CERN. Zunächst werden die Effekte von Strahlung sowie deren Wirkung auf elektronische Komponenten erläutert. Anschließend wird eine Einführung in die verwendeten FPGAs gegeben. In der Durchführung wird der Leckstrom des GateMate FPGAs in seinem Einsatzbereich hinsichtlich Temperatur und Core-Spannungen gemessen. Es wird eine Testumgebung mit ähnlichen Verbindungen zwischen Tester und Testgerät verwendet, wie sie später bei Bestrahlungsstudien am CERN Anwendung findet. Der GateMate wird in diesem Setup für die Finalisierung der Strahlenqualifikation vorbereitet, um die spätere Inbetriebnahme am CERN zu beschleunigen. Dazu werden die Tests grundlegend erläutert und die noch ausstehenden im Anschluss durchgeführt. Der Lattice iCE40 UltraLite FPGA wird in einem ersten Applikationstest eingesetzt, um seine Eignung für weitere Tests zur Strahlenqualifikation am CERN zu bestimmen. Die Ergebnisse aller durchgeführten Tests werden ausgewertet und dargestellt. Abschließend wird eine Zusammenfassung mit Ausblick präsentiert. Y2 - 2024 UN - https://nbn-resolving.org/urn:nbn:de:hbz:dm13-38039 U6 - https://doi.org/10.26205/opus-3803 DO - https://doi.org/10.26205/opus-3803 SP - 136 S1 - 136 ER - TY - THES U1 - Master Thesis A1 - Müller-Baumgart, Ulf T1 - Creation of general representation of a local power grid as a basis for an embedding of electrical devices Y2 - 2024 UN - https://nbn-resolving.org/urn:nbn:de:hbz:dm13-37955 U6 - https://doi.org/10.26205/opus-3795 DO - https://doi.org/10.26205/opus-3795 SP - 96 S1 - 96 ER - TY - THES U1 - Master Thesis A1 - Alaee, Ladan T1 - Design and Implementation of a Mixed-Signal Processing Chain for the Optical Determination of Rotation Angles N2 - The aim of this master thesis is the design and implementation of mixed-signal processing chain for the optical determination of rotation angles by means of four sensors implemented as photodiodes with integrated polarization filters and a high-precision CORDIC hardware design implemented on an FPGA in Verilog. Furthermore, a light source and a polarizer are integrated in the measurement setup which is configured using an QT application. Y2 - 2024 UN - https://nbn-resolving.org/urn:nbn:de:hbz:dm13-37932 U6 - https://doi.org/10.26205/opus-3793 DO - https://doi.org/10.26205/opus-3793 SP - 264 S1 - 264 ER - TY - THES U1 - Master Thesis A1 - García Rodríguez, Saul T1 - Design and FPGA implementation of a highly resource-efficient AES-256 encryption and decryption engine N2 - Growing demand for security in a wide range of fields gives raise to research for more efficient and modern methods. Additionally, the increase of systems that are deployed on hardware requires security to be embedded in small area to protect intellectual property, hardware, and integrity and confidentially of sensible data. Therefore, in this work a design and FPGA implementation of a highly resource-efficient AES-256 encryption and decryption engine is presented, as well as its comparison with state-of-the-art designs. The design shows a reduction in the resources used due to its architecture to reuse hardware throughout all the processing. The design is implemented on a Xilinx Artix-7 FPGA. KW - AES KW - encryption KW - security KW - FPGA KW - decryption Y2 - 2023 UN - https://nbn-resolving.org/urn:nbn:de:hbz:dm13-37471 U6 - https://doi.org/10.26205/opus-3747 DO - https://doi.org/10.26205/opus-3747 SP - 263 S1 - 263 ER - TY - RPRT U1 - Arbeitspapier A1 - Vormann, Claus T1 - Say what you pay? Pay Information Disclosure in German Job Postings N2 - Purpose – Pay transparency is a promising topic both for research and practice. In particular, the new European directive on compensation transparency will increase its importance. However, research is still relatively sparse compared to other areas of HRM. In particular, state-of-the-art and use of pay information disclosure in job postings is neglected. This paper aims to shed light on this HRM topic. Methodology – The paper summarizes the findings of a preliminary study conducted among German companies researching the proportion of firms offering compensation information in job postings and digging into the reasons behind it. Findings – Only 17 % of the participating companies disclose meaningful information about compensation in their job postings. Doing so mainly depends on the company’s attitude towards pay transparency. The age of the company has a minor negative influence, i.e.~older companies are less prone to disclose salary information. Industry, size, and existing overall pay transparency in the company do not determine if pay information is disclosed in job postings. Research limitations – The main limitation of this survey is its small size of 88 participants and the snowball sampling approach employed. This limits its representativeness and calls for follow-up studies involving more companies and a wider variation of positions included. Practical implications – While the EU directive will make it obligatory to communicate about pay before the first interview, some companies do it already. The study helps HR departments that think about changing their practice before it becomes compulsory to better judge the current standards. KW - Human Resource Management KW - Vergütung KW - Personalmarketing KW - Studie KW - Pay Transparency KW - Job Posting KW - Gehaltstransparenz Y1 - 2023 UN - https://nbn-resolving.org/urn:nbn:de:hbz:dm13-37407 U6 - https://doi.org/10.26205/opus-3740 DO - https://doi.org/10.26205/opus-3740 SP - 13 S1 - 13 ER - TY - CHAP U1 - Konferenzveröffentlichung ED - Wolff, Carsten ED - Reimann, Christian T1 - International Research Conference 2017 BT - Conference Proceedings – 30 June - 1 July 2017 N2 - Proceedings der IRC 2017 Y1 - 2017 UN - https://nbn-resolving.org/urn:nbn:de:hbz:dm13-37389 SN - 978-3-00-058090-1 SB - 978-3-00-058090-1 U6 - https://doi.org/10.26205/opus-3738 DO - https://doi.org/10.26205/opus-3738 SP - 208 S1 - 208 ER - TY - CHAP U1 - Konferenzveröffentlichung ED - Reusch, Peter ED - Wolff, Carsten T1 - International Research Conference 2016 BT - Conference Proceedings - 24-25 June 2016 N2 - Proceedings der IRC 2016 Y1 - 2016 UN - https://nbn-resolving.org/urn:nbn:de:hbz:dm13-37376 SN - 978-3-00-055144-4 SB - 978-3-00-055144-4 U6 - https://doi.org/10.26205/opus-3737 DO - https://doi.org/10.26205/opus-3737 SP - 228 S1 - 228 ER - TY - CHAP U1 - Konferenzveröffentlichung ED - Reusch, Peter ED - Wolff, Carsten T1 - International Research Conference 2015 BT - Conference Proceedings - 25-26 June 2015 N2 - Proceedings der IRC 2015 Y1 - 2015 UN - https://nbn-resolving.org/urn:nbn:de:hbz:dm13-37366 SN - 978-3-00-051908-6 SB - 978-3-00-051908-6 U6 - https://doi.org/10.26205/opus-3736 DO - https://doi.org/10.26205/opus-3736 SP - 173 S1 - 173 ER - TY - THES U1 - Master Thesis A1 - Sarangi, Jitikantha T1 - Digital Calibration, Closed Loop Regulation and Implementation of Digital Debugging Features for the Delay Asymmetry Compensation Logic of a 3D Polarization Camera Based on Time-of-Flight Principle N2 - The work presented in this thesis deals with the distance measurement aspect of a 3D Polarization ToF camera for automotive applications that uses a Time-to-Digital Converter (TDC) to measure the time interval between the emission of light from a source and its reception. Based on the measurement of the time interval, distance can be calculated by applying the equation of motion. In application, achieving an exact distance measurement is quite strenuous because the operating conditions of the design are susceptible to change due to environmental factors. Therefore, to achieve accuracy in distance measurement, the time interval between the emission and reception of light must be measured precisely. For this purpose, a delay asymmetry compensation logic is developed. This thesis elaborates the addition of debugging features, redesign of some components, digital calibration approach and the entire testbench environment of the delay asymmetry compensation logic. It also sheds light on the implementation of the designed logic for its successful realisation in real hardware. Lastly, it concludes by narrating future prospects and further scopes of development. Y2 - 2023 UN - https://nbn-resolving.org/urn:nbn:de:hbz:dm13-37323 U6 - https://doi.org/10.26205/opus-3732 DO - https://doi.org/10.26205/opus-3732 SP - 107 S1 - 107 PB - Fachhochschule Dortmund CY - Dortmund ER - TY - THES U1 - Master Thesis A1 - Jung, Richard T1 - Radiation Qualification of the Cologne Chip GateMate A1 FPGA N2 - In this thesis, the radiation sensitivity of the novel Cologne Chip GateMate A1 field-programmable gate array (FPGA) is evaluated. An initial introduction of radiation mechanisms and their effects on electronics is given, followed by a brief overview of radiation test standards. The common elements present in FPGAs are discussed, which is followed by details of the GateMate FPGA device and a description of the software design flow. Afterwards, the development of a purpose-built printed circuit board (PCB) for radiation tests with the GateMate FPGA is detailed. Four components of the GateMate have been tested during three radiation campaigns, as well as a benchmark circuit to compare the radiation performance of the GateMate with other FPGAs tested at the European Organization for Nuclear Research (CERN). The test architecture consists of the device under test (DUT) FPGA and a TESTER FPGA whose task is to provide inputs to the DUT and record its response. The DUT and TESTER designs developed for all tests are discussed in detail. Finally, the results obtained during the irradiation campaigns are presented, showing that the GateMate FPGA performs similarly to other FPGAs using the same process technology. Only the benchmark test was not finalized, as implementation problems prevented its completion in the given time frame. The thesis concludes with a comprehensive summary and outlook. N2 - In dieser Arbeit wird die Strahlungsempfindlichkeit des neuartigen Cologne Chip GateMate A1 FPGA untersucht. Zunächst wurde eine Einführung in Strahlungseffekte und ihre Auswirkungen auf elektronische Komponenten gegeben, gefolgt von einem kurzen Überblick auf aktuelle Strahlungsteststandards. Die üblichen Elemente in FPGAs werden diskutiert, gefolgt von Details über GateMate spezifische Elementen sowie eines Überblicks über den Software-Design-Flow für GateMate FPGA Anwendungen. Im Anschluss wird die Entwicklung eines PCBs für Bestrahlungstests des GateMates detailliert. Vier Komponenten des GateMate wurden während drei Strahlungskampagnen getestet, sowie eine Benchmark-Schaltung, um die Strahlungsempfindlichkeit des GateMate mit anderen am CERN getesteten FPGAs zu vergleichen. Die Testarchitektur besteht aus dem DUT FPGA und einem TESTER FPGA, dessen Aufgabe es ist, Eingaben an das DUT zu liefern und dessen Reaktion aufzuzeichnen. Die für alle Tests entwickelten DUT- und TESTER-Designs werden im Detail diskutiert. Schließlich werden die während der Bestrahlungskampagnen erzielten Ergebnisse vorgestellt, die zeigen, dass der GateMate FPGA ähnliche wie andere FPGAs mit vergleichbarer Prozesstechnologie liefert. Lediglich der Benchmark-Test wurde nicht finalisiert, da Probleme bei der Implementierung die Fertigstellung im vorgegebenen Zeitrahmen verhinderten. Die Arbeit schließt mit einer umfassenden Zusammenfassung und einem Ausblick ab. KW - FPGA KW - Radiation qualification KW - CERN KW - LHC KW - GateMate Y2 - 2023 UN - https://nbn-resolving.org/urn:nbn:de:hbz:dm13-33643 U6 - https://doi.org/10.26205/opus-3364 DO - https://doi.org/10.26205/opus-3364 SP - 118 S1 - 118 ER -