13N50
Preliminary
Power MOSFET
TEST CIRCUITS AND WAVEFORMS
+
D.U.T.
VDS
-
ISD
L
Driver
RG
Same Type
as D.U.T.
VDD
VGS
* dv/dt controlled by RG
* ISD controlled by pulse period
Fig. 1A Peak Diode Recovery dv/dt Test Circuit
Gate Pulse Width
Gate Pulse Period
VGS
(Driver)
D=
10V
IFM, Body Diode Forward Current
ISD
(D.U.T.)
di/dt
IRM
Body Diode Reverse Current
VDS
(D.U.T.)
Body Diode Recovery dv/dt
VSD
VDD
Body Diode
Forward Voltage Drop
Fig. 1B Peak Diode Recovery dv/dt Waveforms
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 6
QW-R502-362.a
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