Duty cycle and frequency doubt

[shjukheter]

Hello,

                      I am making some modifications in my program that had written by someone. It is about a flame machine and AC mains frequency is 50Hz. Now, the program is working for outputting a 20ms continuous flame that means it is quiet clear that it was working at 100% duty cycle(not sure!). I want to make modifications in program to get atleast a continuous flame for 1 Second or more. I think it is not possible because of it is already working at full duty cycle(not sure!) or am I missing something? The signal that I am working with is PWM. Can I get any help here?

[DFGray]

You did not give us enough information to help you.  We know:

1. AC power frequency is 50Hz
2. Output is a flame
3. Output for 20ms works (this is one cycle at 50Hz)
4. Output is PWM modulated
5. You want a 1s flame

Things we don't know and need to know:

1. What does your code look like (please post it or the relevant pieces, actual code is much better than images, but if you use an image, use PNG format)?
2. What is your PWM frequency (you imply it is 50Hz, but without code, we don't know)?
3. How is the flame duration translated from GUI entry to hardware?
4. How is the software connected to the hardware?  What is the interface?

In short, please post code and interface info and we can help.