how to genarate pwm pulses using labview cDAQmx to control 3 phase 3level inverter

[sangeeta42]

hi..i want to genarate pwm pulses by using 2 tringle and 1 sine waveform in labview  to control 3phase 3level invertr on real time using cDAQmx toolkit. can anyone  send mi code or idea how to do it.

[GerdW]

Hi sangeeta,

LabVIEW (and DAQmx) comes with a lot of example code. Did you used the example finder before?

[sangeeta42]

yeah sir i used ,but i dint get what i need..

[GerdW]

Hi sangeeta,

but i dint get what i need

Then you need to start programming.

Maybe you should read some books too, there are probably papers describing algorithms for your topic.

And NI also offers a tool/toolkit for inverter control…

[sangeeta42]

hi

i genarated pwm pulses using sine and tringle, n tried to run on real time using  DAQ channel.but  when i go to select a DAQ channel there is no browse option .how  shoud i  select a DAQ channel. i attached my code here.plz help mi.

[GerdW]

Hi sangeeta,

you never mentioned any "realtime" hardware before! Which one do you use?

On realtime targets (like myRIO, cRIO) you CANNOT use DAQmx functions. There you have to use other ways to access hardware - as is explained in the beginner tutorials and example VIs…

[sangeeta42]

m using NI PXIe-1075 as a real time hardware.in that again m using PXIe-6368 for DAQ channels.

[Dennis_Knutson]

The 1075 is just a chassis and the 6368 is not real time hardware. Are you using LabVIEW real time? Or are you just confused about the meaning of real time?