Talks and Poster Presentations (with Proceedings-Entry):
H. Votzi, J. Ertl:
"Multi-Cell Switch-Mode Power Amplifier with Closed-Loop Hybrid Output Voltage Filter";
Talk: PCIM Europe 2015,
Nürnberg (invited);
05-19-2015
- 05-20-2015; in: "Intelligent Motion, Renewable Energy and Energy Management",
VDE VERLAG GMBH · Berlin · Offenbach,
(2015),
ISBN: 978-3-8007-3924-0;
1527
- 1534.
English abstract:
In this paper a promising novel output voltage filtering concept for multi-cell switch-mode power
amplifiers is analyzed. The proposed hybrid filtering concept is based on a passive LC filter
enhanced by a linear-mode correction stage of small rated power. Using this principle, also
"sub-harmonic" (i.e. low-frequency) switching noise distortions (typically appearing in real interleaved
multi-cell switching amplifiers) can be effectively suppressed which is not possible using conventional
LC filters. Combining the new hybrid filtering approach with a switch-mode power amplifier formed by
an arrangement of low-voltage MOSFET switching cells finally results in a power source of high
output voltage precision at high efficiency rates.
Electronic version of the publication:
http://publik.tuwien.ac.at/files/PubDat_247291.pdf
Created from the Publication Database of the Vienna University of Technology.