IRFW/I540A
N-CHANNEL
POWER MOSFET
Fig 15. Peak Diode Recovery dv/dt Test Circuit & Waveforms
DUT
+
VDS
--
IS
L
VGS
Driver
RG
VGS
Same Type
as DUT
• dv/dt controlled by 밨G
• IS controlled by Duty Factor 밆?
VDD
VGS
( Driver )
IS
( DUT )
VDS
( DUT )
Gate Pulse Width
D = --------------------------
Gate Pulse Period
10V
IFM , Body Diode Forward Current
di/dt
IRM
Body Diode Reverse Current
Body Diode Recovery dv/dt
Vf
VDD
Body Diode
Forward Voltage Drop
6