Students confidently know how to safely and professionally work in a power electronic laboratory environment.
They are able to apply analog and digital control concepts known from theory to implement practical voltage and current control in real converter circuits under experimental conditions.
They are familiar with various advanced converter topologies, such as bridge circuits for DC and AC drive applications as well as resonant converter architectures for high efficiency power supplies.
They understand the structures and performance features of integrated power circuits for energy conversion, smart power control and advanced gate driving and have acquired practical experience in applying and characterizing these devices.
Students also know the coupling and disturbance mechanisms of electro-magnetic noise in power electronic circuits. They are able to apply the respective measurement techniques and understand the relevance of EMC for the practical application of power electronics in industrial and consumer environments.

LAB "Power Electronics Laboratory I - Basics"

• Repeated introduction to laboratory environment and equipment, handling requirements, safety procedures and precautions

• Application of analog and digital converter control concepts
  - Voltage mode vs. peak/average/hysteresis current mode control
  - Digital sampling & filtering, control algorithms
  - Pulse width, phase, frequency modulation
  - Practical application of transfer functions & bode plots
• Active bridge circuits, AC converters & drives
  - Half bridge converter with synchronous rectification
  - MOSFET full bridge & DC drive
  - IGBT 3-phase inverter bridge & AC induction drive
• Resonant Power Converters
  - Zero voltage vs. zero current switching principles
  - Series vs. parallel resonance circuits - LLC & LCC converters
  - Steady state operation and transfer function
  - Voltage and current waveforms, power losses
  - Control concepts - frequency & phase modulation
• Integrated Power Circuits
  - Automotive Smart power devices, SPI control & diagnosis
  - Integrated DC-DC converters, selection & application
  - Integrated gate drivers, isolation techniques, protection features
  - Current sensors, principles, bandwidth and performance
• EMC - Electromagnetic compatibility
  - Antennas & coupling networks, EMC receiver
  - Conducted & radiated EMC measurements in power converters
  - Filter circuits for common & differential mode noise
  - Circuit debugging, wiring and grounding techniques

Course materials, data sheets, operation and safety guidelines as provided before the lab exercises (required)
Marian K. Kazimierczuk; Agasthya Ayachit; "Laboratory Manual for Pulse-Width Modulated DC-DC Power Converters" 1st Edition, Wiley,2016
Webster, J. G., "The Measurement, Instrumentation and Sensors Handbook", Springer, 1999

Interactive laboratory exercise - use specialized equipment to analyze advanced devices and circuits, gain experience with sophisticated measurement problems (bandwidth, parasitics, EMC...), learn to obtain valid test results even under difficult setup conditions.

Immanent examination character:
- Written/oral exam briefings before each laboratory unit
- Participation & collaboration in practical lab exercises
- Lab reports (group work) with measurement results & interpretation