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227-0113-00L 6 Credits BSC , MSC D-ITET

Power Electronics

Leistungselektronik

Lecturers & Examiners: Prof. Dr. Jonas Huber
VVZ CR n/a

Last Updated: 2026-06-03 00:07:41

Abstract

Fields of application of power electronic converters; basic concept of switch-mode voltage and current conversion; derivation of circuit structures of non-isolated and isolated DC/DC converters, AC/DC and DC/AC converter structures; analysis procedure and analysis of the operating behaviour and operating range; design criteria and design of main power components.

Objective

Fields of application of power electronic converters; basic concept of switch-mode voltage and current conversion; derivation of circuit structures of non-isolated and isolated DC/DC converters, AC/DC and DC/AC converter structures; analysis procedure and analysis of the operating behaviour and operating range; design criteria and design of main power components.

Content

Fields of application and application examples of power electronic converters, basic concept of switch-mode voltage and current conversion, pulse-width modulation (PWM); derivation and operating modes (continuous and discontinuous current mode) of DC/DC converter topologies, buck / boost / buck-boost converter; extension to DC/AC conversion using differences of unipolar output voltages varying over time; single-phase diode rectifier; boost-type PWM rectifier featuring sinusoidal input current; tolerance band AC current control and cascaded output voltage control with inner constant switching frequency current control; local and global averaging of switching frequency discontinuous quantities for calculation of component stresses; three-phase AC/DC conversion, center-tap rectifier with impressed output current, thyristor function, thyristor center-tap and full-bridge converter, rectifier and inverter operation, control angle and recovery time, inverter operation limit; basics of inductors and single-phase transformers, design based on scaling laws; Isolated DCDC converter, flyback and forward converter, single-switch and two-switch circuit; single-phase DC/AC conversion, four-quadrant converter, unipolar and bipolar modulation, fundamental frequency model of AC-side operating behaviour; three-phase DC/AC converter with star-connected three-phase load, zero sequence (common-mode) and current forming differential-mode output voltage components, fundamental frequency modulation and PWM with singe triangular carrier and individual carrier signals of the phases.

Resources

Lecture Notes

Lecture notes and associated exercises including correct answers, simulation program for interactive self-learning including visualization/animation features.

General Information

Language
German
Levels
BSC , MSC
Frequency
Yearly recurring

Examination

Type
session examination
Mode
written 180 minutes
Aids
Vorlesungsskript, schr. Zusammenfassung (max. 10 Blatt A4 doppelseitig), Taschenrechner; keine Lösungen zu den Übungsbeispielen und Prüfungskatalogbeispielen, keine Kommunikationsgeräte.
Eine eigenständige Nachbereitung der Vorlesung, das Lösen von Übungsaufgaben und das Erlangen von Rechenroutine sind wichtige Bestandteile der Lehrveranstaltung. Dazu werden Lernelemente online angeboten, durch deren Bearbeitung Sie die in der Sessionsprüfung erworbene Note um bis zu 0.25 Notenpunkte erhöhen können (Details werden zu Beginn der Vorlesung bekannt gegeben). Es zählen ausschliesslich jene Punkte, welche durch Lernelemente im direkt vorangegangenen Herbstsemester erworbenen wurden; eine Anrechnung von älteren Punkten ist nicht möglich.

Course Components

Type Title Time & Place Hours
lecture with exercise Leistungselektronik No time listed 4 h weekly

Offered In