duty cycle variation in PWM signal

Manjunathan K

i worked with example codes and understand how to generate PWM signal with fixed duty cycle . howto acquire variable duty cycle in Rm48

over 8 years ago

0 Chuck Davenport over 8 years ago

TI__Guru 59540 points

Hello Manjunathan,

Can you explain a bit more about what you would like to do? In other words, what do you mean by aquire a variable duty cycle? Do you mean how do you generate a variable duty cycle PWM or do you mean how do you capture a variable duty cycle PWM using the input capture capability of the N2HET?

0 Manjunathan K over 8 years ago in reply to Chuck Davenport

Expert 2825 points

yes sir . how can i generate variable duty cycle PWM. need some sample program

thank you Sir,

K.Manjunathan

0 Chuck Davenport over 8 years ago in reply to Manjunathan K

TI__Guru 59540 points

Hello Manjunathan,

Please review the information at the following links for more information on using the NHET and the NHET IDE.

Video on the NHET IDE:
www.youtube.com/watch

Video on using NHET to create a PWM:
www.youtube.com/watch

Also, the following thread has a fairly extensive dicussion of a "blackbox NHET program" that allows for external PWM dutycycle changes. It is referring to example code include with the hercules HDKs. The entire suite of "Demo" code can be downloaded here:

www.ti.com/.../hercules_safety_mcu_demos

Note that the software include has versions for various hercules products so be careful to select the correct sw set for the device you are using.

0 Manjunathan K over 8 years ago in reply to Chuck Davenport

Expert 2825 points

thank you sir. i will check with the links and if i have any struggle i will come back to you.

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duty cycle variation in PWM signal