SELECTED METHODS TO REDUCE HARD-SWITCHING LOSSES IN HIGH VOLTAGE POWER MOSFETS
Journal Title: Proceedings of Electrotechnical Institute Prace Instytutu Elektrotechniki - Year 2015, Vol 62, Issue 270
Abstract
In this paper, selected methods to reduce switching losses in Power MOSFETs under hard switching operation were presented. The main part of these switching losses in two switches branch is body diode reverse recovery charge. Studies have demonstrated the dependence of the reverse recovery charge on the dead time length. Accordingly, the proposed methods of minimizing switching losses by adjusting the dead time length to switching current value. Simulation studies have shown a significant reduction in switching losses in the dual active bridge after applying the control algorithm with a variable dead time.
Authors and Affiliations
Piotr Grzejszczak, Roman Barlik
Keywords
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- EP ID EP80259
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Doc. dr inż. Józef Zamojski (1931-2015)
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