How to generate PWM signals in NI-sbRIO 9632

[ronaldcwh]

Hi,

I am new to using NI board in develop a DC motor controller. I want to generate a PWM signals that can varying duty cycle.

The board I am using is NI-sbRIO 9632. Can I have a details direction on how to generate a PWM signals to output to control the MOSFET, thus

control the speed of the brushed DC motor.

Regards,

Ronald

[abong]

Hi Ronald,

Good day to you. Probably you can look through ni.com for examples to generate PWM output using FPGA. I came across a simple one at the search link below. Just look out for the title PWM Output with LabVIEW FPGA. I tried out the example using a sbRIO 9632 to generate PWM at channel Port5/DIO0 and loop back to Port5/DIO1. It works pretty well.

http://search.ni.com/nisearch/app/main/p/bot/no/ap/tech/lang/en/pg/1/sn/catnav:ex/q/PWM%20Output/def...

Also, for your reference, I have attached a white paper which expalins about PWM interface for FPGA.

http://www.ni.com/white-paper/3254/en/

Thank you.

Regards,

Alan