Dual Flying Capacitor Multilevel Inverter: High Freq.
Pros:
S1
+ E
-
S2 C1
+
S聞2
E
-
S聞1
+
S3
S5
Vdc S6
E
VN
S4 C2
+
ZVS for line freq. switches No transient voltage imbalance Better loss distribution
Line Freq.
iA V iB A V iC B VC
:
Cons
S聞4
One additional capacitor (but 1.4 times less rms current)
E
-
S聞3
10
Power Electronics Lab