Leibniz Universität Hannover Faculty Faculty of Electrical Engineering and Computer Science
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Institute of Microelectronic Systems
 
Institute of Microelectronic Systems Research
Mixed-Signal-Circuits

Research projects in the field of mixed-signal circuits

  • KI4BoardNet: DC/DC converter for on-board networks with AI-based control
    The aim of the sub-project is to research DC-DC converters for automotive electrical systems with self-learning algorithms to compensate for fluctuations in passive L-C components. This should make it possible to use significantly more cost-effective components with larger parameter tolerances.
    Led by: Prof. Dr.-Ing. Bernard Wicht
    Team: Joseph Winkler, Dr.-Ing. Markus Olbrich, u.a.
    Year: 2023
    Funding: BMBF
    Duration: 1.12.2022-30.11.2025
  • Integrated Circuit Design for a High-voltage Class-D amplifier (SmartAmp)
    The overall goal of this project is to implement a high voltage (min. 60 V) and a high frequency class‑D amplifier including integrated current replication circuit and signal generator for harsh environment at temperatures up to 175 °C.
    Led by: Prof. Dr.-Ing. Bernhard Wicht
    Team: Dietmar Spiger
    Year: 2022
    Funding: Industrie
    Duration: 01.06.2021-31.05.2023
  • Formal Verification of Analog AI Hardware (FAI)
    The aim of the project is to research formal methods for the verification of analog neural networks. The focus is on the parameter variations of the analog circuit components.
    Led by: Dr.-Ing. Markus Olbrich
    Team: Thomas Bartelsmeier
    Year: 2022
    Funding: DFG
    Duration: 1.7.2022-30.6.2025
  • Investigation of efficient voltage converter topologies for the next generation of microcontrollers
    The increasing use of driver assistance systems through to fully autonomous vehicles requires the integration of a large number of different sensors in the automobile. More and more powerful microcontrollers are required for the evaluation and further processing of the sensor data. The aim of the project is to research and develop a power management system that can be directly integrated into the microcontroller. The focus is on high energy efficiency, compactness and low costs. In addition, solutions for scalability of the system are to be developed that allow easy adaptation to different output power ranges.
    Led by: Prof. Dr.-Ing. Bernard Wicht
    Team: Adrian Gehl
    Year: 2021
    Funding: Industrie
    Duration: 01.04.2020 – 31.03.2023
  • Fully integrated and system-optimized electronics solutions for solar modules(Voyager-PV)
    For three decades, the idea of inverters integrated directly into the solar module has been pursued in science and industry. With such AC solar modules, enormous cost and quality advantages are possible. The aim of the project is to create the technological prerequisites for a drastic reduction in the cost of small-scale PV system electronics, while at the same time meeting significantly higher reliability and service life requirements in this segment and the new future requirements with regard to grid suitability, digitization and security.
    Led by: Prof. Dr.-Ing. Bernhard Wicht
    Team: Christoph Hillmer
    Year: 2020
    Funding: BMWi 7. Energieforschungsprogramm „Innovationen für die Energiewende“
    Duration: 01.04.2020 – 31.03.2023
  • Multi-Energy Harvesting (MEH) - A Flexible Platform for Energy Harvesting in Home Automation
    In this project, a platform concept for intelligent home automation components is developed, which can serve as a basis for next-generation sensors and actors. The main characteristic of this platform concept is ultra-low power consumption and ultra-low voltage operation. In combination with harvested energy from multiple sources (multi-energy harvesting), an extended lifetime and reduced battery cell requirements become possible compared to current systems.
    Led by: Prof. Dr.-Ing. H. Blume, Prof. Dr.-Ing. B. Wicht, apl. Prof. Dr.-Ing. G. Payá Vayá
    Team: M.Sc. Moritz Weißbrich, M.Sc. Lars-Christian Kähler
    Year: 2019
    Funding: BMBF
    Duration: October 2018 - March 2021
  • New Simulation Methods for Accelerated Mixed-Signal Simulation
    This research project is based on an approach for the automated model generation for accelerated mixed-signal simulation of analog circuit models and the associated simulation methodology for a transient analysis. Studies have shown good results, which make a significant acceleration in the simulation of mixed analog/digital-systems. Up to now, the current approach is limited to piecewise-constant input stimuli. One of the fundamental goals of this project is an extension of the novel simulation methodology that enables additional input signal types.
    Led by: Prof. Dr.-Ing. Erich Barke
    Team: Dipl.-Ing. Sara Divanbeigi
    Year: 2019
    Funding: Deutsche Forschungsgemeinschaft (DFG): BA 812/24-1
    Duration: March 2014 - February 2017
  • Research on reconfigurable, passive microelectronic components for energy efficiency and flexibility (ERMI)
    This research project uses new, reconfigurable passive components for integrated energy-efficient voltage transformers for local power supply (point-of-load). The goal is increased energy efficiency and a phase-adapted circuit design. This is especially important for multi-phase converters that use a large number of parallel inductors to meet the increasing requirements for highly efficient and powerful power supplies for modern microcontrollers and processors in important growth areas such as mobility, industrial, energy and biomedicine.
    Led by: Prof. Dr.-Ing. Bernhard Wicht
    Team: Ferdinand Pieper
    Year: 2019
    Funding: BMBF „Forschung für neue Mikroelektronik“ (ForMikro)
    Duration: 01.10.2019 – 31.09.2023
  • Formal Abstraction and Verification of Analog Circuits (faveAC)
    In the faveAC project, methods are being developed for the modeling and formal verification of analog circuits.
    Led by: Dr.-Ing. Markus Olbrich
    Team: Malgorzata Rechmal
    Year: 2019
    Funding: DFG
    Duration: März 2017 - Februar 2020

Completed Projects

Last Change: 13.12.24 Print

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