Hitachi RAC-25RPA - Page 72

Fig. 9-1 System power module circuit (U
+
is ON, V
-
is ON)
9. Intelligent power module circuit (IPM circuit)
Fig. 9-1 shows peripheral circuits of intelligent power module (IPM). In the diagram, U
+
,V
+
and W
+
are called the
"upper arm", U
-
, V
-
and W
-
, the "lower arm".
L004
C600
R603
R008
C031
72