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K. Edelmoser, H. Ertl:
"EMI-Reduced, Efficiency Optimized Solar Inverter Power Stage";
Vortrag: European Power and Energy Systems EuroPES, Rhodes, Greece; 26.06.2006 - 28.06.2006; in: "Proceedings of the International Conference of Power and Energy Systems IASTED", (2006), ISBN: 0-88986-555-8; Paper-Nr. 521-062pdf, 5 S.

Conventional power inverters used in mains connected applications fight with the
disadvantage of the hard switched PWM power stage. Alternatively, also soft switching
topologies would not give full benefits. A simple modification in output section of a
hard-switched topology, however, can lead to a significant improvement of the system
losses. Only two additional components (diodes) are necessary to optimize the power stages
for usage in a mains coupled inverters. The topology presented in this paper shows a
remarkable improvement of the switching losses as well as a significantly enhanced EMC.
Consequently, it is well suited for solar power inverter applications.

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