Transcription of MOSFET Power Losses Calculation Using the Data- Sheet ...
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MOSFET Power Losses Calculation Using the Data- Sheet ...
Never stop Power MOSFET Power Losses Calculation Using the Data- Sheet Parameters by Dr. Du an Graovac, Marco P rschel, Andreas Kiep Application Note, V , July 2006 MOSFET Converter Losses Application Note 2 2006-07-31 Table of Content 1 Abstract ..3 2 MOSFET and Diode Losses ..3 Conduction RDSon - Taking the Temperature and Production Variations into Switching Losses ..6 Switch-on Switch-off Switching Energies and Losses ..10 Loss 3 Application Specific Parameters ..11 Step-down (Buck) Step-up (Boost) Converter ..12 DC Motor Three-Phase AC Motor Switched Reluctance Motor Drive ..18 Piezo-Electric Actuator ..19 4 5 MOSFET Converter Losses 31 Abstract The aim of this Application Note is to provide a mathematical tool for the Calculation of Power Losses in MOSFET -based Power electronics converters used in automotive applications. After a general discussion on Power Losses Calculation Using the Data- Sheet parameters, the typical applications will be reviewed in order to extract the application specific parameters important for the loss balance.
MOSFET Converter Losses 5 2.1.1 RDSon - Taking the Temperature and Production Variations into Account The procedure for R DSon determination, shown in figure 1, refers to the R DSon typical values. While this procedure should be satisfying for the majority of applications, the R DSon value can be calculated by taking into account the temperature and production variations.
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