Digitally Controlled Switched-Mode Power Supplies

The goal of this research project is to explore the possibilities and advantages of adaptive digital controls for automotive switched-mode power supplies.

Motivation

  • Digital control of automotive switched-mode power supplies
  • Better control performance with less area and lower cost
  • Less parameter variations, improved transient response

Challenges

  • Beneficial adaptive digital control
  • Suitable analog-to-digital- and digital-to-analog-conversion
  • Full integration

Publications

  • S. Quenzer-Hohmuth, J. Messner, S. Ritzmann, T. Rosahl, B. Wicht:
    Accelerated Low Gate Count Parameter Identification for Integrated Switched-Mode Power Supplies with Digital Control; APEC 2019.
  • S. Quenzer-Hohmuth, S. Ritzmann, T. Rosahl, B. Wicht:
    A Boost Converter with 3-6V Input and Fast Transient Digital Control Comprising a 90 ns-Latency Live-Tracking Window ADC; ESSCIRC 2018.
  • S. Quenzer-Hohmuth, S. Ritzmann, T. Rosahl, B. Wicht:
    ΔV/Δt-Intervention Control Concept for Improved Transient Response in Digitally Controlled Boost Converters; APEC 2018.
  • S. Quenzer-Hohmuth, C. Jiago, S. Ritzmann, T. Rosahl, B. Wicht:
    Delay-Line Analog-Digital-Wandler mit geringer Latenzzeit für digital geregelte Schaltwandler; MPC-Workshopband 2016.
  • S. Quenzer-Hohmuth, S. Ritzmann, T. Rosahl, B. Wicht:
    Boost Converter with Load Dependent Adaptive Controller for Improved Transient Response; PRIME 2016
  • S. Quenzer-Hohmuth, T. Rosahl, S. Ritzmann, B. Wicht:
    Challenges and Implementation Aspects of Switched-Mode Power Supplies with Digital Control for Automotive Applications; Advances in Radio Science 2016

Digitaler Regelkreis