how to give multiple inputs of same category to a single terminal through switching ?

i need to give three inputs(three duty cycles D1 D2 D3) to power converter, one input at a time sequentially one after other and the switching truth table is

D1 D2 D3

1 0 0

0 1 0

0 0 1

i tried with 1)multi-port switch, 2)delay and mux combination but dint get as desired.

how to implement this

Answer 1

[Azzi Abdelmalek]

use three repeating sequences stairs block

• the first block to set with 1 0 0
• the second 0 1 0
• the third 0 0 1

Dont forget to set your sample time

[V Vaishnavi Kumar]

ya k sir ,will try this, i did a model by multiplying pulse generator and constant block, gave phase delays for pulse generator, but setting sample time is a tedious task for me. sample time mis matches between unit delay in other sub systems,

1)is there any extreme limits(min&max) for setting sample time of whole system

2) based on what criteria the sample time should be set

[Azzi Abdelmalek]

the limit of the sample time depends on your real system and the performances of your computer and DAQ (data aquisition). I can't tell you how to choose your sample time, you should ask this question to specialists of power elctronics.

[V Vaishnavi Kumar]

ya k..