LORCH V30 - Checking Mosfets

page 44
Checking MOSFETs
∞
Ω
0
Ω
MOSFET - Test
S
GS
G
D
S
GS
G
D
S
GS
G
D
S
GS
G
D
9V Batterie
9V battery
use a 9V battery to “switch on“ the
drain - source path
drain - source path is low resistant
short circuit between gate and source
to “switch off“ the drain - source path
drain - source path is high resistant