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Featured researches published by Christoph Loef.


power electronics specialists conference | 1997

Analysis of a full-bridge LCC-type parallel resonant converter with capacitive output filter

Christoph Loef

The purpose of this paper is to study the performance of a full-bridge three element LCC resonant power converter with a capacitive output filter. The study focuses on the operation under pulsewidth modulation with variable operation frequency. The operation modes of the LCC power converter are evaluated and their boundaries are given by means of normalised diagrams. Furthermore, optimal operation modes with reduced switching losses are evaluated. The advantages of an RPI-configuration for improved inverter efficiency is carried out. Apart from analytical investigations, experimental results are also presented.


Archive | 2002

Power supply for an x-ray generator

Christoph Loef; Arne Lunding; Heiko Osterholz; Heinz van der Broeck


Archive | 2010

Method and device for detecting a device in a wireless power transmission system

Bart Michiel De Boer; Andries Van Wageningen; Christoph Loef; Eberhard Waffenschmidt; Lennart Seboodt; Menno Anne Treffers


Archive | 2006

Resonant Dc/Dc Converter With Zero Current Switching

Thomas Scheel; Peter Luerkens; Christoph Loef


Archive | 2009

Rotary power transformer for use in a high-voltage generator circuitry for inductively transmitting two or more independently controllable supply voltages to the power supply terminals of a load

Christoph Loef; Peter Luerkens


Archive | 2007

Spectrally resolving x-ray imaging device

Christian Baeumer; Roger Steadman Booker; Gereon Vogtmeier; Thomas Scheel; Christoph Loef


Archive | 2007

POWER SUPPLY FOR AN X-RAY GENERATOR SYSTEM

Christoph Loef; Gereon Vogtmeier; Guenter Zeitler


Archive | 2002

Stand-by circuit for an electric apparatus

Carsten Deppe; Thomas Dürbaum; Christoph Loef; Peter Lürkens; Georg Sauerländer; Matthias Wendt


Archive | 2006

Systems and methods for scanning and data acquisition in computed tomography (ct) applications

Astrid Lewalter; Rainer Pietig; Guenter Zeitler; Kai Eck; Christoph Herrmann; Rainer Kiewitt; Christoph Loef; Oliver Muelhens; Carolina Ribbing; Georg Rose; Matthias Simon; Olaf Wischhusen


Archive | 2001

AC/DC converter

Christoph Loef

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