using labview cosimulation, how to control PWM duty cycle in multisim

[SPECTRE]

I am new to using Multisim with LabVIEW using cosimulation. I want to ask if there is a PWM component in Multisim that can have its duty cycle be controlled using LabVIEW? I have an algorithm in LabVIEW that outputs duty cycle values from 0 to 1, representing duty cycle percentages.

How do I control the PWM duty cycle in Multisim using LabVIEW cosimulation?

Many thanks,

SPECTRE

[Tien_P · Accepted solution]

Hi Spectre,

In Multisim, search for the parts base on functionality, there are some PWM models in the database.  Have a look at this knowledge base  if you don't know how to search for parts:

http://digital.ni.com/public.nsf/allkb/7309A5CABC677296862577ED006EC99E

Aslo, have a look at this knowledgebase:

http://digital.ni.com/public.nsf/allkb/EF391C48CF71AE4F862571B900644F84

This article shows how you can get Mutlisim and LabVIEW to co-simiualte:

http://www.ni.com/white-paper/13663/en

I hope this helps

[justlearning]

Can You make me understand this? please

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@SPECTRE

[Dave@RPS]

Here is a screen shot of the basic PWM function.  In order to control the PWM duty cycle you input a voltage from 0 to 1.0 proportional to the desired duty cycle.

The PWM frequency and output voltage amplitude and rise/fall time are all settings of the PWM function.

[justlearning]

Thank Dear,