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N-CHANNEL POWER MOSFET Fig 15. Peak Diode Recovery dv/dt Test Circuit & Waveforms DUT V DS + -- L I S Driver V GS R G Same Type as DUT V GS •dv/dt controlled by “R G” •I S controlled by Duty Factor “D” V DD 10V V GS ( Driver ) I S ( DUT ) V DS ( DUT ) V DD Body Diode Forward Voltage Drop V f I FM , Body Diode Forward Current Body Diode Reverse Current I RM Body Diode Recovery dv/dt di/dt D = Gate Pulse Width Gate Pulse Period -------------------------- IRFW/I550A |
