How to use PI controller for a particular discrete time step only within the sampling time?

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AHAMMAD FAHAD N
AHAMMAD FAHAD N 2021-2-18
回答： MULI 2024-2-22
Hi, I am a simulink user.For eg i took sampling time as 1 microsec.All i want is to use PI controller only for 0.3microsec (ie remaining 0.7microsec it should halt ) and output of the PI controller i want to use for another purpose which takes the remaining sampling time ie 0.7microsec. And i want to repeat this procedure every 1 microsec.

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MULI
MULI 2024-2-22
Hi Ahammad,
Here I am providing one of the possible approaches which provides the desired result.
Set the pulse width of a pulse generator to 30% which generates the output such that it will be high upto 0.3 microsec and zero for remaining time.
Multiply the pulse generator output with output of PI Controller. A NOT gate can be used to get the output for remaining time.
Here I am attaching the Simulink layout and its output.

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