Project: Power Management for DC-DC Converters

Master data
Power Management for DC-DC Converters
Description: In zukuenftigen Systemen fuer mobile und drahtlose Anwendungen werden immer mehr Hardwarekomponenten benoetigt. Um jeden dieser Bloecke optimal betreiben zu koennen werden eine Vielzahl an unterschiedlichen Versorgungsspannungen benoetigt. Die Aufgabe eines DC/DC Wandlers ist die Bereitstellung dieser Versorgungsspannungen. Im Zuge dieses Projektes soll, gemeinsam mit dem Industriepartner Infineon Villach die Effizienz von bestehenden Loesungen analysiert und weiter optimiert werden. Dabei sollen im speziellen PWM-basierte Spannungswandler untersucht werden, um deren Effizienz, aber auch deren Robustheit gegen Versorgungsspannungseinbrueche, Lastspruenge,... zu optimieren. Die entwickelten Konzepte werden durch Simulationen aber auch durch die Fertigung eines Testchips in 65 nm Technologie verifiziert.
Keywords: DC-DC Converters
Power Management for DC-DC Converters
Description: The trend in recent hardware system designs, especially when they are battery driven (eg. notebooks, cellular phones or handhelds), is to operate the different components of the system (RF ciruits, baseband processor, etc. in case of a cellular phone) with different supply voltages, in order to achieve optimum performance and high power efficiency. The task of a DC-DC converter is to produce this variety of required supply voltages by decreasing or increasing the voltage level offered by the source power supply (e.g. a battery). The challenging part is to perform this voltage conversions as power efficient as possible. Traditionally, such DC-DC converters were implemented as analog circuits, but recently more and more functionality is implemented by digital circuitry. This offers more flexibility on the one hand, and offers the opportunity to integrate more complex, maybe even adaptable control logic, on the other hand. The project proposed in co-operation with Infineon Villach aims to investigate and also develop a PWM-based digital control logic for future DC-DC converters, with the goal to reduce the overall power consumption. As a first step, the analog components of the DC-DC converter must be known in order to control the circuit in an optimized fashion. It might be necassary to investigate adaptable control logic, which autonomously can estimate the parameters of the external elements (tolerances of coils, capacitors, etc.). With a more accurate knowledge of the control path, the control process can be optimized. Furthermore, power savings can possibly be achieved by optimizing the transient effects when turning the circuit on and off, which is a common task in modern designs, where only active hardware blocks are powered on. The research results should be verified by simulations and by measurements on real prototype hardware on silicon in 65 nm technology.
Keywords: DC-DC Converters
Short title: n.a.
Period: 01.01.2008 - 31.12.2010
Contact e-mail: -
Homepage: -

Employees
Employees Role Time period
Robert Priewasser
Research activities
To visiting card
(internal)
  • Research staff
  • 01.01.2008 - 31.12.2010
Matteo Agostinelli
Matteo.Agostinelli@aau.at
Research activities
To visiting card
(internal)
  • Research staff
  • 01.01.2008 - 31.12.2010
Johannes Brecher
Research activities
(external)
  • Scholarship holder
  • 01.01.2008 - 31.12.2010
Mario Huemer
Research activities
To visiting card
(internal)
  • Project leader
  • 01.01.2008 - 31.12.2010
Rajya Lakshmi Dokku
Research activities
(external)
  • Scholarship holder
  • 01.01.2008 - 31.12.2010

Assignment
Organisational unit
Fakultät für Technische Wissenschaften
  Institut für Vernetzte und Eingebettete Systeme
Universitätsstraße 65-67
9020 Klagenfurt am Wörthersee
Austria
  -993640
   kornelia.lienbacher@aau.at
https://nes.aau.at/
To organisation

Categorisation
Project type Research funding (on request / by call for proposals)
Funding type §27
Research type
  • Applied research
  • Fundamental research
  • Experimental development
Subject areas
  • 25 - Electrical Engineering, Electronics *
Research Cluster No research Research Cluster selected
Gender aspects 0%
Project focus
  • Science to Science (Quality indicator: n.a.)
Classification raster of the assigned organisational units:
working groups No working group selected

Funding
Funding program
Lakeside Labs GmbH
Organisation: Lakeside Science & Technology Park GmbH

Organisation: Lakeside Science & Technology Park GmbH
Infineon Technologies Austria AG
Organisation: Infineon Technologies Austria AG

Cooperations
Organisation Address
Lakeside Labs GmbH
Lakeside Science & Technology Park
9020 Klagenfurt
Austria - Carinthia
Lakeside Science & Technology Park
AT - 9020  Klagenfurt
Infineon Technologies Austria AG
Siemensstraße 2
9500 Villach
Austria
Siemensstraße 2
AT - 9500  Villach