Output Voltage

S1

S2

S3

S4

S5

S6

+Vdc/3

0

0

0

1

0

1

+2Vdc/3

0

0

0

1

1

0

+3Vdc/3

1

0

0

1

0

0

0

1

1

0

0

0

0

−Vdc/3

0

1

0

0

1

0

−2Vdc/3

0

1

0

0

0

1

−3Vdc/3

0

1

1

0

0

0