measuring the changing duty cycle of PWM waveform

[greatwall]

I need to measure the changing duty cycle of PWM waveform.

conditions:

1. the period is fixed.

2. but the duty cycle is changing.

goal:

measure the every duty cycle of a period in the waveform.

Can you please give me a help?

Thank you in advance.

the waveform image is attached.

[johnsold]

You need to provide more specific information.

What is the period? What is the minimum, maximum, and resolution of the PWM signal? What is the time scale in your image?

How are you measuring or generating the signal you show in the image?

What should the output look like? An array of duty cycles expressed as percentage? Some kind of plot on a graph?

How long will this measurement last?

Lynn