Table 3 Reduced switch 31 level Inverter switching operation and output voltage.
Levels | \({S}_{1}\) | \({S}_{2}\) | \({S}_{3}\) | \({S}_{4}\) | Output voltage |
|---|---|---|---|---|---|
1 | 1 | 1 | 1 | 1 | \({V}_{S1}+{V}_{S2}+{V}_{S3}+{V}_{S4}\) |
2 | 0 | 1 | 1 | 1 | \({V}_{S2}+{V}_{S3}+{V}_{S4}\) |
3 | 1 | 0 | 1 | 1 | \({V}_{S1}+{V}_{S3}+{V}_{S4}\) |
4 | 0 | 0 | 1 | 1 | \({V}_{S3}+{V}_{S4}\) |
5 | 1 | 1 | 0 | 1 | \({V}_{S1}+{V}_{S2}+{V}_{S4}\) |
6 | 0 | 1 | 0 | 1 | \({V}_{S2}+{V}_{S4}\) |
7 | 1 | 0 | 0 | 1 | \({V}_{S1}+{V}_{S4}\) |
8 | 0 | 0 | 0 | 1 | \({V}_{S4}\) |
9 | 1 | 1 | 1 | 0 | \({V}_{S1}+{V}_{S2}+{V}_{S3}\) |
10 | 0 | 1 | 1 | 0 | \({V}_{S2}+{V}_{S3}\) |
11 | 1 | 0 | 1 | 0 | \({V}_{S1}+{V}_{S3}\) |
12 | 0 | 0 | 1 | 0 | \({V}_{S3}\) |
13 | 1 | 1 | 0 | 0 | \({V}_{S1}+{V}_{S2}\) |
14 | 0 | 1 | 0 | 0 | \({V}_{S2}\) |
15 | 1 | 0 | 0 | 0 | \({V}_{S1}\) |
16 | 0 | 0 | 0 | 0 | 0 |
17 | 1 | 0 | 0 | 0 | \({-V}_{S1}\) |
18 | 0 | 1 | 0 | 0 | \({-V}_{S2}\) |
19 | 1 | 1 | 0 | 0 | \(-({V}_{S1}+{V}_{S2})\) |
20 | 0 | 0 | 1 | 0 | \({-V}_{S3}\) |
21 | 1 | 0 | 1 | 0 | \({-(V}_{S1}+{V}_{S3})\) |
22 | 0 | 1 | 1 | 0 | \(-({V}_{S2}+{V}_{S3})\) |
23 | 1 | 1 | 1 | 0 | \(-({V}_{S1}+{V}_{S2}+{V}_{S3})\) |
24 | 0 | 0 | 0 | 1 | \({-V}_{S4}\) |
25 | 1 | 0 | 0 | 1 | \({-(V}_{S1}+{V}_{S4})\) |
26 | 0 | 1 | 0 | 1 | \({-(V}_{S2}+{V}_{S4})\) |
27 | 1 | 1 | 0 | 1 | \(-({V}_{S1}+{V}_{S2}+{V}_{S4})\) |
28 | 0 | 0 | 1 | 1 | \({-(V}_{S3}+{V}_{S4})\) |
29 | 1 | 0 | 1 | 1 | \({-(V}_{S1}+{V}_{S3}+{V}_{S4})\) |
30 | 0 | 1 | 1 | 1 | \({-(V}_{S2}+{V}_{S3}+{V}_{S4})\) |
31 | 1 | 1 | 1 | 1 | \({-(V}_{S1}+{V}_{S2}+{V}_{S3}+{V}_{S4})\) |