Oliver Knecht
ETH Zurich
11 Papers
140 Citations
Oliver Knecht is an academic researcher from ETH Zurich. The author has contributed to research in topics: Electromagnetic coil & Maximum power transfer theorem. The author has an hindex of 9, co-authored 11 publications.
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Papers
High-Efficiency Transcutaneous Energy Transfer for Implantable Mechanical Heart Support Systems
TL;DR: In this paper, a high-frequency self-driven synchronous rectifier circuit with minimized volume is developed to achieve the optimal energy transmission coil parameters for transcutaneous energy transfer (TET) systems.
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Comprehensive evaluation of GaN GIT in low- and high-frequency bridge leg applications
Dominik Bortis,Oliver Knecht,Dominik Neumayr,Johann W. Kolar +3 more
- 22 May 2016
TL;DR: In this paper, a simple and reliable gate drive circuit for driving GaN switches is presented, and the proposed gate drive is used to evaluate the switching performance of a GaN Gate Injection Transistor (GIT) under soft and hard switching condition, which provides a basis for further optimization of totem-pole converter systems.
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Performance Evaluation of Series-Compensated IPT Systems for Transcutaneous Energy Transfer
Oliver Knecht,Johann W. Kolar +1 more
TL;DR: An in-depth comparison of two operating modes is provided, i.e., the operation at resonance and the operation above resonance, and highlights the advantages and disadvantages with respect to the requirements set by the application at hand.
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Comparative evaluation of IPT resonant circuit topologies for wireless power supplies of implantable mechanical circulatory support systems
Oliver Knecht,Johann W. Kolar +1 more
- 01 Mar 2017
TL;DR: In this article, three commonly used IPT resonant circuit topologies are compared regarding power transfer efficiency and heating of the tissue, and the main advantages and disadvantages of each topology are identified and as a result, the series-series compensated topology is the most promising solution for Transcutaneous Energy Transfer (TET) systems capable to provide a peak power transmission of up to 30 W.
ZVS Modulation Scheme for Reduced Complexity Clamp-Switch TCM DC–DC Boost Converter
TL;DR: In this paper, two variations of the clamp-switch TCM with reduced number of active switches in the circuit are presented, which are suitable for high input-to-output voltage conversion ratios.
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