n

S3

S2

S1

Vf1

Vf2

Vf3

0

0

0

0

0

0

0

1

0

0

1

−VDC/3

−VDC/3

2VDC/3

2

0

1

0

−VDC/3

2VDC/3

−VDC/3

3

0

1

1

−2VDC/3

VDC/3

VDC/3

4

1

0

0

2VDC/3

−VDC/3

−VDC/3

5

1

0

1

−VDC/3

2VDC/3

−VDC/3

6

1

1

0

VDC/3

VDC/3

−2VDC/3

7

1

1

1

0

0

0