Before revision: Vector A+ B+ C+ A− B− C− VAB VBC VCA V0 = {000} OFF OFF OFF ON ON ON 0 0 0 zero vector V1 = {100} ON OFF OFF OFF ON ON +Vdc 0 −Vdc active vector V2 = {110} ON ON OFF OFF OFF ON 0 +Vdc −Vdc active vector V3 = {010} OFF ON OFF ON OFF ON −Vdc +Vdc 0 active vector V4 = {011} OFF ON ON ON OFF OFF −Vdc 0 +Vdc active vector V5 = {001} OFF OFF ON ON ON OFF 0 −Vdc +Vdc active vector V6 = {101} ON OFF ON OFF ON OFF +Vdc −Vdc 0 active vector V7 = {111} ON ON ON OFF OFF OFF 0 0 0 zero vector Note that looking down the columns for the active switching vectors V1-6, the output voltages vary as a pulsed sinusoid, with each leg offset by 120 degrees of phase angle.
After revision: Vector A+ B+ C+ A− B− C− VAB VBC VCA V0 = {000} OFF OFF OFF ON ON ON 0 0 0 zero vector V1 = {100} ON OFF OFF OFF ON ON 0 active vector V2 = {110} ON ON OFF OFF OFF ON 0 active vector V3 = {010} OFF ON OFF ON OFF ON 0 active vector V4 = {011} OFF ON ON ON OFF OFF 0 active vector V5 = {001} OFF OFF ON ON ON OFF 0 active vector V6 = {101} ON OFF ON OFF ON OFF 0 active vector V7 = {111} ON ON ON OFF OFF OFF 0 0 0 zero vector Note that looking down the columns for the active switching vectors V1-6, the output voltages vary as a pulsed sinusoid, with each leg offset by 120 degrees of phase angle.