TY - JOUR A1 - Karlinger, Peter A1 - Zillmer, Markus A1 - Zentgraf, Peter A1 - Würtele, Martin A1 - Grimm, Günther T1 - Neue Regler für Plastizfierungen an Spritzgießmaschinen JF - Zeitschrift Kunststoffe KW - Spritzguss KW - Spritzgießmaschinen Y1 - 2018 ER - TY - JOUR A1 - Karlinger, Peter A1 - Barth, Simon A1 - Hartmann, Markus A1 - Michanickl, Andreas A1 - Schemme, Michael T1 - Einen Bund eingehen JF - Bauen mit Holz KW - Holzbau Y1 - 2018 ER - TY - CHAP A1 - Versen, Martin A1 - Kipfelsberger, S. T1 - Introduction to microcomputer technology with the MSP430 Launch Pad in remote labs T2 - Global Engineering Education Conference (EDUCON), 2014 IEEE N2 - Texas Instruments' MSP430 Launch Pad is used as a key component for remote labs that complement an introduction course to microcomputer technology in the bachelor program Mechatronic at the University of Applied Sciences in Rosenheim. The remote labs use breakout boards and include a timer experiment with generation of pulse width modulation signals, I2C communication and analog to digital conversion. KW - Microelectronics KW - Microcomputer KW - MSP430 Launch Pad Y1 - 2018 ER - TY - CHAP A1 - Versen, Martin A1 - Bernhardt, A1 - Heigl, M. A1 - Viehhauser, P. A1 - Zentgraf, P. T1 - System for real-time data acquisition and processing on a hail-fighter aeroplane T2 - Proceedings of the 5th European DSP Education and Research Conference N2 - The System HAILsens implements a device for Real-Time sensor data processing, running on a Texas Instruments Concerto M3 core. An I2C interface is used for sensor communications. Ethernet with UDP on a custom developed three layered frame organisation of sensor data serves as a link to the main system on board of an aeroplane. For backing up the acquired data, all frames are locally stored on an SD Card. To have the possibility of easily checking the current system status, an LCD module and a push-button provide a minimal user interface. KW - sensors KW - aircraft instrumentation KW - data acquisition KW - liquid crystal displays Y1 - 2018 ER - TY - CHAP A1 - Versen, Martin T1 - DRAM Failure Analysis and Defect Localization Techniques, Microelectronics Failure Analysis T2 - Desk Reference Sixth Edition N2 - Comprehensive guide to the process and test methods used for electronic device failure analysis. Contains dozens of articles—contributed by industry experts—covering a wide range of topics involving the failure analysis of microelectronics. It places the most important and up-to-date information on this subject at your fingertips.  Topic coverage includes:  Failure Analysis Process Flow Failure Verification  Failure Modes and Failure Classification  Special Devices (MEMS, Optoelectronics, Passives)  Fault Localization Techniques: Package Level (NDT)  Die Level (Depackaging, Photon Emission, Microthermography, Laser-Based Methods, Particle Beam Methods)  Deprocessing & Imaging Techniques: Deprocessing  General Imaging Techniques  Local Deprocessing & Imaging  Circuit Edit and Design Modification  Material Analysis Techniques  Reference Information: Important Topics for Semiconductor Devices  Failure Analysis Techniques Roadmap  Failure Analysis Operations and Management  Appendices: Failure Analysis Terms, Definitions, and Acronyms  Industry Standards KW - Microelectronics KW - DRAM Failure Analysis Y1 - 2018 PB - ASM International CY - Ohio ER - TY - CHAP A1 - Versen, Martin A1 - Shankar, S. A1 - Enimidisetty, S. A1 - Bernhardt, A. A1 - Srinivasan, B. T1 - Setup for Locating PV-Cell Surface Defects Through ISC Measurements T2 - Proceedings of the 37th ISTFA 2011 KW - Photovoltaik KW - PV-Cell defects KW - ISC Measurements Y1 - 2018 ER - TY - CHAP A1 - Versen, Martin T1 - Worst Case Test Conditions for Defect Localization in DRAM Devices T2 - Microelectronics Seminar of the ISTFA 2011 KW - DRAM Devices KW - Microelectronics Y1 - 2018 ER - TY - CHAP A1 - Wittmann, Josef A1 - Hagl, Rainer T1 - Gleichlaufschwankungen in Servoantrieben T2 - Fortschritte in der Antriebs- und Automatisierungstechnik (FAA), Stuttgart KW - Elektrische Antriebssysteme KW - Leistungselektronik  KW - Automatisierungstechnik Y1 - 2016 ER - TY - CHAP A1 - Wittmann, Josef A1 - Hagl, Rainer A1 - Kennel, Ralph T1 - Influence of Position Measuring Errors on Speed Ripple in Servo Drives T2 - 2016 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM, Capri, Italy N2 - Position measuring devices with sinusoidal measuring signals are widely used in position-controlled servo drives in industrial automation, e.g., for machine tools or semiconductor production machines. Usually, the feedback signal for the speed or velocity controller is calculated from the measured position. Therefore, position measuring errors affect these control loops. This study presents an analytic error model that considers non-ideal sinusoidal measuring signals with basic deviations (amplitude differences, offset errors, and phase shift) as well as signal harmonics. The model was used to systematically investigate the influence of signal quality and the number of signal periods from position measuring devices on speed ripple, across a wide range of speeds. A test stand with a high-resolution reference angle measuring device was used to confirm the results. KW - Elektrische Antriebssysteme KW - Leistungselektronik  KW - Automatisierungstechnik KW - Power Electronics KW - Electrical Drives KW - Automation and Motion Y1 - 2016 UR - https://doi.org/10.1109/SPEEDAM.2016.7525816 ER - TY - CHAP A1 - Wittmann, Josef A1 - Hagl, Rainer A1 - Kennel, Ralph T1 - Hybrid Current and Acceleration Control of Servo Drives T2 - PCIM Europe 2017 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nürnberg N2 - A hybrid current and acceleration control is presented and shown to improve the load disturbance behavior of servo drives significantly without additional sensor effort. The feedback signal of the acceleration control loop is calculated from the position data of the motor encoder. Hence, position measuring errors influence this control loop and lead to speed ripple. Therefore, the presented design of the acceleration control loop considers both load sensitivity and position measuring errors. KW - Elektrische Antriebssysteme KW - Leistungselektronik  KW - Servo drives KW - Electrical drives Y1 - 2017 ER - TY - CHAP A1 - Höllthaler, Julia A1 - Hagl, Rainer T1 - Plattformunabhängige modellbasierte Entwicklung von hochdynamischen Antriebsregelungen T2 - MATLAB EXPO 2017 Deutschland, München, 27. Juni 2017 KW - Elektrische Antriebssysteme KW - Leistungselektronik  KW - hochdynamische Antriebsregelungen Y1 - 2017 ER - TY - CHAP A1 - Stubenrauch, Franz A1 - Wittmann, Josef A1 - Kiermayer, Alexander A1 - Seliger, Norbert A1 - Hagl, Rainer A1 - Schmitt-Landsiedel, Doris A1 - Kennel, Ralph T1 - FPGA-based High Dynamic Servo Drive Control with a 200kHz Gallium Nitride Inverter T2 - 2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe), Warsaw, Poland N2 - Increased productivity in industrial processes can be achieved by dynamic and accurate positioning of servo drives. Therefore, improvement of servo drive dynamics using latest technologies in the key components such as inverter, control system and position measuring device are investigated. Using Gallium Nitride (GaN) or Silicon Carbide (SiC) semiconductors for motor inverters enables energy efficient operation up to pulse width modulation (PWM) frequencies of 500 kHz. This allows motor filters with small component sizes. As a result, high motor efficiency, low torque ripple, high control bandwidth and almost ideal sinusoidal output voltages are achieved. Experiments on a 200 kHz Gallium Nitride inverter with sine wave motor filter show a current control loop bandwidth of 3.2 kHz and almost ideal sinusoidal phase voltages. The achieved bandwidths of the speed and position control loops are 318 Hz and 106 Hz, respectively. KW - Servo drive control KW - Gallium Nitride Inverter KW - electrical drive Y1 - 2017 UR - https://doi.org/10.23919/EPE17ECCEEurope.2017.8098997 ER - TY - CHAP A1 - Versen, Martin A1 - Treichl, R. A1 - Kaltenecker, M. A1 - El Shahawy, H. A1 - Thomas, T. T. T1 - Differentielle LVDS Schnittstelle für modellbasierte Entwürfe mit MathWorks HDL Coder T2 - 15. AALE Konferenz zu Cyberphysischen Produktionssystemen, 2018 KW - LVDS Schnittstellen KW - MathWorks HDL Coder KW - Cyberphysische Produktionssysteme Y1 - 2018 SN - 978-3-8007-4522-7 PB - VDE-Verlag CY - Berlin ER - TY - JOUR A1 - Versen, Martin A1 - Ernst, W. A1 - Gulati, P. T1 - A row hammer pattern analysis of DDR2 SDRAM JF - Microelectronics Reliability N2 - A DDR2 SDRAM test setup implemented on the Griffin III ATE test system from HILEVEL Technologies is used to analyse the row hammer bug. Row hammer pattern experiments are compared to standard retention tests. The analysis confirms that the row hammer effect is caused by a charge excitation process depending on the number of stress activation cycles. The stress has to occur in the local neighborhood of the cells under test. Shallow impurity levels support the responsible charge carrier transport process in the used DDR2 SDRAM technology KW - Microelectronics KW - pattern analysis Y1 - 2018 UR - https://doi.org/10.1016/j.microrel.2017.07.022 VL - 76-77 SP - 64 EP - 67 ER - TY - CHAP A1 - Versen, Martin A1 - Kipfelsberger, F. A1 - Soekmen, F. T1 - Model-Based Reference Design Projects with MathWorks' HDL Workflow Advisor for Custom-Specific Electronics with the Zedboard T2 - ANALOG 2016; 15. ITG/GMM-Symposium, Bremen, Germany N2 - Reference design projects are implemented to the Xilinx Zynq on the Zedboard which is extended by user defined electronic hardware connected through the Zedboard's FMC (FPGA Mezzanine Card) connector. The implementation method with HDL Workflow Advisor includes constraint definitions for modified reference design projects for use with digital input and outputs and Zynq's XADC (Analog-Digital converter) which is characterized and compared to its data sheet. The bandwidth of the Zynq's internal AXI (Advanced eXtensible Interface) bus connected to the Simulink host PC is determined. KW - Zedboard KW - MathWorks' HDL KW - Custom specific electronics Y1 - 2018 ER - TY - JOUR A1 - Versen, Martin A1 - Ernst, W. A1 - Gulati, P. A1 - Singh, G. T1 - Test setup for reliability studies of DDR2 SDRAM JF - Microelectronics Reliability N2 - A DDR2 DRAM test setup is developed and implemented on the Griffin III ATE test system from HILEVEL Technologies. The test system provides a raw platform for performing various mixed signal and digital tests. In order to configure patterns easily in a vector format, a software platform is developed to manage test patterns according to the user's analysis needs. As examples, retention test patterns with disabled self-refresh are applied to 2 Gbit DDR2 SDRAM of two different DRAM vendors. The devices are characterized in respect to their intrinsic leakage and data retention behavior under the influence of stress conditions such as temperature or access algorithm. The tests are automated and test data is logged for an off-line data analysis. Data is recorded before and after solder simulation steps in order to observe a retention time degradation. KW - Microelectronics KW - DRAM retention solder simulation Y1 - 2018 ER - TY - CHAP A1 - Versen, Martin A1 - Hayn, M. T1 - Introduction to Verification and Test Using a 4-Bit Arithmetic Logic Unit Including a Failure Module in a Xilinx XC9572XL CPLD T2 - Proceedings of the 40th ISTFA 2014 KW - Microelectronics KW - Xilinx XC9572XL CPLD Y1 - 2018 ER - TY - JOUR A1 - Wittmann, Josef A1 - Hagl, Rainer T1 - Positionsmessfehler in Servoantrieben JF - Antriebstechnik KW - Elektrische Antriebssysteme KW - Leistungselektronik  KW - Servoantrieb KW - Positionsmessung Y1 - 2016 VL - 2016 IS - 1-2 ER - TY - THES A1 - Rabold, Andreas T1 - Anwendung der Finite Element Methode auf die Trittschallberechnung N2 - Die Forschung und Entwicklung im Bereich der Bauakustik erfolgt bislang schwerpunktmäßig durch aufwändige messtechnische Parameterstudien. Eine wesentliche Reduzierung dieses Aufwands kann dadurch erreicht werden, dass die Bauteil-Parameterstudien nicht mehr ausschließlich durch Messungen erfolgen, sondern auch anhand von geeigneten Berechnungsmodellen durchgeführt werden. Dazu wurde ein umfassendes Berechnungsmodell erarbeitet und anhand von Messergebnissen validiert. Wesentliche Grundlage für die volumenorientierte akustische Simulation ist dabei die p-Version der Methode der Finiten Elemente. Auf Basis der numerischen Berechnungen wurden die Wechselwirkungen der Deckenkomponenten untersucht und optimierte Konstruktionen erarbeitet. Nach deren messtechnischen Überprüfung konnten die Ergebnisse in Form von Konstruktionshilfen für optimierte Aufbauten zusammengestellt werden. KW - Bauakustik KW - Finiten Elemente Methode KW - Trittschallmessung Y1 - 2018 ER - TY - JOUR A1 - Hummel, Sabine A1 - Knorr, Ludwig A1 - Karlinger, Peter A1 - Schemme, Michael T1 - Eine Frage der Haftung JF - Kunststoffe N2 - Dieser Artikel gibt ein Einblick in Hinblick auf die Verarbeitung von endlosverstärkten Faserhalbzeuge, sogenannten Organobleche, in Kombination mit dem Spritzgießverfahren. Ein Schwerpunkt stellt die Verbundhaftung zwischen den beiden Komponenten dar. Neue Ergebnisse sollen die Gestaltungsrichtlinien der angespritzten Funktionselementen für derartige Bauteile führen. Die Verbundfestigkeit hängt von vielen Einflussfaktoren ab. KW - Organoblech KW - endlosverstärkung KW - Spritzguss KW - Faserverbundkunststoffe KW - Kunststoff KW - Verbundhaftung KW - Verbundfestigkeit KW - Rippen Y1 - 2017 IS - 07/2017 PB - Carl Hanser Verlag GmbH & Co. KG CY - München ER -