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Einrichtungen >> Technische Fakultät (TF) >> Department Elektrotechnik-Elektronik-Informationstechnik (EEI) >>

Lehrstuhl für Optoelektronik

	2015 Analysis and Design of a Cost Effective One Stage Topology for LED Lighting Applications Design of a Series Resonant Converter with Inductive Output Filter for 130 W Street Lighting Application Novel Analysis of a Boost-Buck Single Stage LED-Ballast Reconstruction of Currents from EMC Near-Field Measurements by Means of Continuity Equation Constraints
	2014 A Novel Method to Predict ZVS Behavior of LLC Converters Analysis and Design of a Boost-Buck Single Stage Topology for LED Lighting Applications Analysis and Design of a Partial-Multi-Resonant LLC Converter Analysis and Optimization of the Asymmetrical Half-Bridge PWM Converter Detailed Analysis and Optimization of the Asymmetrical Half-Bridge PWM Converter including Parasitics Influence of Component Tolerances onto Design and Losses of Resonant LLC Converters Non-Ideal Smoothing Transformer for Effective Differential Mode Noise Reduction in an SMPS Novel Improved Loss Prediction for Multi-Resonant Converter Optimization Based on the First-Harmonic-Approximation The advantages of spatial domain probe compensation technique in EMC near-field measurements
	2013 A Novel Detailed Analysis of the Series Resonant Converter with Inductive Output Filter A Novel Optimization Strategy for Point of Load Converters Application specific efficiency improvement for an industrial point of load converter Automated EMI Measurement Set-up Comprising CM and DM Measurements with a Modified LISN Clusterschulung: Induktivitäten in der Leistungselektronik Clusterschulung: Induktivitäten in der Leistungselektronik Die Vorzüge der Sondenkompensation im Ortsbereich bei EMV Nahfeldmessungen Effective CM Reduction in a Flyback by means of Passive Cancellation Effective Common Mode Noise Filtering by Means of Passive Cancellation: Some Important Aspects Important Aspects on Effective Common Mode Noise Filtering by Means of Passive Cancellation Improved characterization of the magnetic properties of hexagonally packed wires Novel approach to describe the material functions of the Hodgdon Model to match the hysteresis behavior of silicon iron 6.5 % Passive Cancellation in a Flyback for Effective CM Reduction Seminar: EMV in Theorie und Praxis Seminar: EMV in Theorie und Praxis Small Signal Analysis of the Resonant LLC Converter Strategies to reduce EMC Problems in Power Electronic Circuits Wicklungen - besser auslegen statt besser kühlen ZVS Investigation of LLC Converters Based on FHA Assumptions
	2012 A Polynomial Approach applied to the Hodgdon Model to describe the Hysteresis Loops of SiFe Analysis and Design of a Contactless Power Transmission System Based on the Extended First Harmonic Approximation Analysis of parasitic effects on passive compensation of common mode noise in a boost converter Analytical Calculation of the Current Sharing in Copper Coils with Parallel Windings Arbitrary Load Profile Emulator Based on a µC Controlled Switchable Resistor Network Comparison of Output Rectifier Topologies in Case of a Low-Profile LLC Converter Development of a Wireless Dimmable CFL for Domestic Application on the Basis of Bluetooth Technology Discrete Modeling of Resonant Converters – Practical Validation Discrete Modeling of Resonant Converters – Steady State and Small Signal Description Effective Measurement Set-up to Determine the Inductivity of Nonlinear Inductances as a Function of the Inductor Current Elektrotechnik - Aufgabensammlung mit Lösungen Induktive Komponenten in der Leistungselektronik Influence of Parasitic Effects on Passive Cancellation of Common Mode Noise in a Boost Converter Interaction between Passive Common Mode Noise Cancellation and Conservative Passive Filtering Litzen im Vergleich Non-Ideal Smoothing Transformer as Effective Differential Mode Filter Power Loss Measurement based on Transient Temperature Rise Power loss measurement using a fast and accurate open calorimeter Resonant LLC and LCC Converter – Comparison Based on an Identical Hardware Set-Up Seminar: EMV in Theorie und Praxis Smoothing Transformer as Effective Differential Mode Filter Smoothing Transformer for Differential Mode Noise Reduction Steady State and Small Signal Modeling of Resonant Converters – Practical Validation
	2011 A Fully Automated Measurement Set-up for the Determination of the Reverse Recovery Behaviour of Ultra-Fast Diodes Analysis and Design of a LCC Converter for Low-Profile Resonant Power Adapters Analytical Prediction of the Effect of Conductive Planes on EMC Filter Structures Automated Test Set-up for Reverse Recovery Characterization of Ultrafast Diodes Automatic Measurement of the Reverse Recovery Behavior of Ultra-Fast Diodes Balancing Unit for Proper Characterization of a Modified LISN for Effective EMI Noise Separation Comparison of Resonant LLC and LCC Converters for Low-Profile Applications Current Distribution in Copper Coils with Parallel Windings Determination of the receiving characteristics of near-field probes by simulation of the fields in transmitting mode Discrepancies Caused by Approximation Methods in Case of Resonant LLC Converters with Capacitive Output Filter Elektrotechnik EMV in der Leistungselektronik Fully Automated Measurement Set-up for Ultra-Fast Recovery Diode Testing Grundlagen der Elektrotechnik 1, Erfahrungssätze, Bauelemente, Gleichstromschaltungen Grundlagen der Elektrotechnik 2, Periodische und nicht periodische Signalformen Improved characterization of the magnetic properties of hexagonally packed wires Induktive Komponenten in der Leistungselektronik Industrie-Schaltnetzgeräte im Test – Teil 1: stationäre Eigenschaften Industrie-Schaltnetzgeräte im Test – Teil 2: dynamische Eigenschaften Industrie-Schaltnetzgeräte im Test – Teil 3: elektromagnetische Eigenschaften Low-Profile LLC Converter for Notebook Adapters Measurement and Characterization of High Frequency Losses in Nonideal Litz Wires Output Impedance Calculation by Means of Sampled-Data Modeling Spannungsregler kleiner Leistung im Test - Teil 3: Messung statischer Kenngrößen Spannungsregler kleiner Leistung im Test – Teil 2: Messung statischer Kenngrößen Spannungsregler kleiner Leistung im Test – Teil 4: Dynamische Kenngrößen und elektromagnetische Verträglichkeit The Resonant LLC vs. LCC Converter – Comparing Two Optimized Prototypes
	2010 A Comparison of Different Design Methods for the LLC Converter with Capacitive Output Filter A practical method to measure electrical AC conductivity of MnZn ferrites using conventional toroids An Analytical Model to Predict the Influence of Conductive Planes on EMC Filter Structures Analysis and Design of a Low-Profile LLC Converter Analysis and Design of a Low-Profile Resonant LCC Converter Analysis and Design of a Resonant LCC Converter for Low-Profile Applications Application of Probes with Multiple Outputs on Probe-Compensated EMC Near-Field Measurements Calibration of Probes for EMC Near-Field Scanning Characterisation of an effective EMI noise separation including a standard LISN Characterization of a modified LISN for effective separated measurements of common mode and differential mode EMI noise Die elektrischen und magnetischen Ersatzschaltbilder von Transformatoren Einfluss metallischer Flächen auf das Verhalten von EMV-Filtern Extended First Harmonic Approximation in Case of LLCC Converters with Capacitive Output Filter Fast and Accurate Simulation Method for Switch-Mode Power Supplies Influence of Adjacent Metal Cover Planes on EMC Filter Structures Low-profile Power Adapter Based on a Resonant LCC Converter Matlab based fast and accurate Simulation of a Power Factor Corrector Switch Mode Power Supply in Boundary Conduction Mode with Valley Skipping Method for the Fast and Accurate Simulation of Switch-Mode Power Supplies Minimale Funknetzstörungen durch optimierte Auslegung von Funknetzteilen Modification and characterization of a standard LISN for effective EMI noise separation Optimale Wicklung = optimaler Wirkungsgrad Rapid simulation of multi-resonant LLCC converters with capacitive output filter based on an extended first harmonic approximation Resonant LCC Converter for Low-Profile Applications Sampled-Data Modeling Applied to Output Impedance Reveals Missing Term in State-Space Averaging Spannungsregler kleiner Leistung im Test – Teil 1: Grundlagen und Testfeld Wicklungsverluste in Spulen und Trafos aus HF-Litze
	2009 A practical method to measure electrical AC conductivity of MnZn ferrites using conventional toroids An automatic approach for the extraction of data curves for magnetic materials Automated Measurement Setup for the Control-to-Output Transfer Function of Power Factor Correctors Averaged large signal model of boost power factor corrector in boundary conduction mode Characterization and Modelling of EMC-Filters in the Automotive Area Die Simulation von Verlustmechanismen Electromagnetic Near-Field Scanning in Time and Frequency Domain for EMI Characterisation Influence of Adjacent Metal Cover Planes on EMC Filter Structures Integrated Active Near-Field Sensor in GaAs Technology Integrated Active Sensors for Near-Field Scanning Miniature Dipole Antenna for Active Near-Field Sensor Modellierung induktiver Komponenten - Eine thematische Einführung Mutual Inductance of Capacitor Low-Pass Filters Prediction of the EMC behaviour of switch mode power supplies in boundary conduction mode including switching frequency limitations Simulation of EMC-Filters applied in Automotive Electronic Control Units
	2008 Automated Test Set-up for Efficiency Measurements of Switch Mode Power Supplies Breitbandige Charakterisierung und Modellierung von EMV-Filtern im Automobilbereich Breitbandige Charakterisierung und Modellierung von EMV-Filtern im Automobilbereich Comparison of Different PWM Converter Small-Signal Models Consideration of Conduction Losses for the Series Resonant Converter by Means of a Simple Extension to the SPA Approach Easy de-embedding of symmetrical coax-to-microstrip transitions Electromagnetic Near-Field Scanning in Time and Frequency Domain Grundlagen der Elektrotechnik 1 - Erfahrungssätze, Bauelemente, Gleichstromschaltungen Integrated Magnetic Loop Probe in GaAs Technology for Active Near-Field Sensor Miniature Loop Antenna for Active Near-Field Sensor Multi-Resonant LCC Converter - Comparison of Different Methods for the Steady-State Analysis Optimized Winding Layout for Minimized Proximity Losses in Coils with Rod Cores Response of a Magnetic Loop Probe to the Current and Voltage on a Microstrip Line Simple Extension to the State-Plane Analysis Approach for the Series Resonant Converter to Include Conduction Losses Validation and Comparison of different PWM Converter Small Signal Models
	2007 Accurate Impedance Characterization with a Vector Network Analyzer Analysis of a DSP-system in order to flexibly control a switch mode power supply Characterization of active circuits up to 1 GHz with respect to estimation of EMC behaviour Comparison of Methods for the Analysis of the Parallel Resonant Converter with Capacitive Output Filter EMI of active Front Ends applied in the Automotive Industry Evaluation of power LEDs and their efficiency by driving them with currents typical to switch mode power supplies Evaluation on the Efficiency of Power LEDs Driven with Currents Typical to Switch Mode Power Supplies Fast and precise calculation of winding losses in P-, RM- and ETD-ferrite core inductors Implementation of a Pulse Generator for the Investigation of Dead-Time effects in Half-Bridges by a DSP system Inductance of Coils with Rod Cores as a Function of Core Geometry and Winding Layout Industrie-Schaltnetzgeräte im Test – Teil 1: stationäre Eigenschaften Industrie-Schaltnetzgeräte im Test – Teil 2: dynamische Eigenschaften Industrie-Schaltnetzgeräte im Test – Teil 3: elektromagnetische Verträglichkeit Investigation on a DSP-system to digitally control a switching power supply Methods for the Analysis of the Parallel Resonant Converter with Capacitive Output Filter Prediction and Measurement of Common Mode EMI influence on high side current measurements Reduction of magnetic field strength on PCB level - Laboratory for power electronic students The Influence of Ferrite Characteristics on the Inductance of Coils With Rod Cores Unified filter characterization and measurement with multiport blocks
	2006 A Fast Calculation Tool for the Design of PFC Converters - Method and Application A Programmable Pulse Generator for the Investigation of Dead Time Effects in Half Bridges Analytical Calculation of Stray Fields Created by Ferrite Rods in EMI Suppression Applications Calculation of Core Losses in Toroids with Rectangular Cross Section Comparison of Different Design Methods for the Parallel Resonant Converter Comparison of First Harmonic Approximation with exact Solution in case of a Series Resonant Converter Design Methodology to Limit Electromagnetic Coupling between Board Tracks on PCB Level in Realtime EMC Analysis of Planar PCB-Based Coils in the Vicinity of the Automobile Carriage EMC Shielding in Power Electronics Multilayers EMC Shielding in Power Electronics Multilayers with Conductive Permeable Material EMV-Integration in den Layout-Prozess am Beispiel einer Kombination von Mikrostreifen- und Triplate-Leitungen Influence of the Device Housing on Integrated Passives of Power Electronics Investigation of Turn-Off Behaviour under the Assumption of Linear Capacitances Kern- und Wicklungsverluste Modulanalyse unter Einbindung von messtechnisch bestimmten Black Box Modellen Optimum EMC Design of Flyback and Load Resonant Converters Using Toroids with Air Gaps The Influence of Ferrite Characteristics on the Inductance of Coils with Rod Cores The Influence of Ground and Floating Planes on the Electromagnetic Coupling between Board Tracks The influence of the winding layout on the core losses and the leakage inductance in high frequency transformers
	2005 A fast calculation tool for the design of PFC converters - Method and application A Universal Analytic Model for Planar Coils with Circular Windings Close to Conductive-permeable Foils Application of Non Linear Inductance in Passive Mains Harmonic Reduction Circuits EMC shielding of planar inductive components in power electronics multilayers with conductive permeable layers ESD Laboratory for Power Electronics Students Grundlagen der Elektrotechnik 2, Periodische und nicht periodische Signalformen Influence of non linear magnetic inductance in passive mains harmonic reduction circuits Mains harmonic reduction circuits using non linear inductances Minimum Loss Design for Core-Less Foil Inductors Planar Inductive Components in the Vicinity of Conductive, Permeable Material Sensitivity analysis of air gap size of non linear inductance in passive mains harmonic reduction circuits Teaching of ESD phenomena to power electronics students The Minimization of Copper Losses in Core-less Inductors: Application to Foil- and PCB-based Planar Windings The Minimization of Copper Losses in Core-less Inductors: Application to Foil- and PCB-based Planar Windings The Minimization of Magnetic Stray Fields from Transformers with Air Gapped Toroids The Optimization of High Frequency Operated Transformers for Resonant Converters The Optimization of High Frequency Operated Transformers with E-Cores The Optimization of High Frequency Operated Transformers with E-Cores - Application to Resonant Converters The Optimization of Transformers with Air Gapped Toroids
	2004 A New Characterisation Method for Ferrite Polymer Compound Comparison between resonant and conventional gate drivers in ZVS applications Evaluating the RF-Emissions of Automotive Cable Harness Grundlagen der Elektrotechnik I, Erfahrungssätze, Bauelemente, Gleichstromschaltungen Integral Manufacturing of Embedded Passive Integrated Circuits for Power Electronics Integrated Method for Optimization of Power Electronics Circuits PCB Layout Inductance Modeling Based on a Time Domain Measurement Approach Planar PCB-based transformers - Method of calculation and design study The Minimization of Magnetic Stray Fields from Toroids with Air Gaps The Minimization of Magnetic Stray Fields from UI-Cores with Air Gaps Third Quadrant Output Characteristics in High Density Trench MOSFETs
	2003 3D-Integration in der Leistungselektronik: Integrierte Bauelemente - Materialien und Herstellung 3D-Integration in der Leistungselektronik: Neue Perspektiven für die Elektronikfertigung von morgen A Detailed Analysis of a Resonant Gate Driver for Frequency Control Applications A Detailed Analysis of a Resonant Gate Driver for PWM Applications AM Compatible Switch Mode Power Supply For Compact Audio Sets An analytical model for studying the electromagnetic radiation of power-bus structures Analysis of embedded passives integrated circuits for power converters Analytical Calculation of Winding Capacitances in Transformers De-embedding of Reverse Recovery Losses in Fast Switching VRM Applications Equivalent Circuit Modelling for HF-Transformers Investigation of the radiation from parallel-plane power-bus structures on printed circuit boards Magnetic field distribution in embedded passive integrated circuits Quantification of Switching Loss Contributions in Synchronous Rectifier Applications Switching loss contributions of synchronous rectifiers in VRM applications Teaching Coupling Mechanisms - A Case Study
	2002 A new Load-Resonant Dual-Output Converter Topology A New Resonant DC-DC Converter For Consumer Electronic Applications Coupling Mechanisms - EMC experiment demonstrations Description Of Transformer Leakage By Introduction Of An AL-Value Design of Magnetic Components Design of Magnetic Components Design procedure for load resonant converters using integrated magnetics Embedded passive circuits for power converters Equivalent circuit modelling for hf-transformers
	2001 Design of Magnetic Components Energy based capacitance model for magnetic devices Modelling of the Asymmetrical Half-Bridge with Single Diode Output Modelling of ZVS Transitions in Asymmetrical Half-Bridge PWM Converters Optimierte Entstörung für Hörfunkempfänger - Reduzierung von Magnetfeldern durch \|'Buried Jumper'\| - Technologie The influence of air gap position and winding position on the inductance in high frequency transformers The influence of air gap size and winding position on the proximity losses in high frequency transformers The influence of the non-linear ferrite characteristics on the attenuation of power line filters
	2000 Capacitance Model for Flyback Transformers Capacitance model for magnetic devices Common Mode Noise Generated by Magnetic Components - Experimental Test Set-up and Measurement Results Design of Magnetic Components Two-dimensional calculation of winding losses in transformers
	1999 Capacitor Coupled, Low Cost, Voltage Step-Down Rectifier Layer Based Capacitance Model for Magnetic Devices Reduction of magnetic field strength generated by a switched mode power supply
	1998 First harmonic approximation including design constraints Optimisation of the Transformer Turns Ratio by means of the First Harmonic Approximation
	1997 Analysis of the series-parallel multiresonant LLC converter - comparison between first harmonic approximation and measurement The Winding Capacitance of Solid and Litz Wires
	1996 Calculating Core Losses in Transformers for Arbitrary Magnetizing Currents - A Comparison of Different Approaches Remagnetization Losses of Ferrite Materials used in Power Electronic Applications
	1995 Analytical Representation of the Magnetization-Curve of Soft Ferrites and its Temperature Dependence Core Losses in Transformers with an Arbitrary Shape of the Magnetizing Current Flyback Converter with Capacitively Coupled Boost Power Stage
	1993 High Frequency Interferences - Standards, Problems and Solutions How to avoid filters in off-line power supplies
	1991 Optimized operation mode for 3 kW off-line preconditioner circuits
	1989 An ac-dc converter with low mains current distortion and minimized conducted emissions Power supply for 2 kW halogen lamp with continuous power control and sinusoidal input current
	1988 Störprobleme bei Schaltnetzteilen
	1986 Conducted interference voltage of ac-dc converters
	1985 RF interference from switched mode power supplies
	1984 Leitende elliptische Zylinder hoher Permeabilität im Felde einer Doppelleitung
	1983 Bestimmung induzierter Wirbelströme in Körpern hoher Permeabilität nach dem Differenzen-Verfahren Sprungförmige Änderung der Leitfähigkeit auf einer schrägen Begrenzungsfläch
	1982 Beitrag zur Kapazitätsberechnung bei beidseitig beschichteten Dielektrika Kraftverhältnisse und Stabilität einer elektromagnetischen Schwebeanordnung Lösung des Randwertproblems bei Anwesenheit leitender Körper hoher Permeabilität im erregenden magnetischen Wechselfeld Stromverteilung und Verluste in mehreren zylindrischen Massivleitern rechteckförmigen Querschnittes
	1981 Analytische Bestimmung der Induktivitäten einer Drehfeldmaschine mit offenen Nuten Berechnung der Wirbelströme in einer leitenden Kreisscheibe und einer dünnen Platte Induzierte Wirbelströme in einer Kreisscheibe und in einem Rechteckzylinder endlicher Höhe Widerstandsänderung bei kreiszylindrischen und langgestreckten Massivleitern als Folge von Querschnittsänderungen Zur Bemessung von Grundwasser-Entspannungslöchern in wasserdruckbelasteten Bauwerkssohlen - Eine potentialtheoretische Lösung
	1980 Analytische Bestimmung der Hauptreaktanzen und des Drehmomentes eines Reluktanzmotors Leitende Zylinder im Felde senkrecht zu den Stirnseiten verlaufender erregender Leiter Widerstandserhöhung eines zylindrischen Leiters infolge einer exzentrischen Querschnittseinengung endlicher Länge



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