How make a variable pulse generator.

Question

Hi I need some help about the Pulse Generator.

I want to use one pulse generator block, start with a 0.5 duty cycle wave, and in another period the duty cycle change for 0.8 for example, but using only one block in the same pulse, I will put some image example below.

Comments

Is the period consistent for all pulses?  

If so you can simply use a Triangular Wave Generator with a "Duty cycle" of 1 (creating a saw-tooth waveform with positive slope) and a comparator block (comparing the Triangular Wave Generator output with your desired period).

---

Yes, I understand your circuit, but I want different period in some pulses, like 0.5 duty cycle pulses and after some periods the duty cycle change to a 0.8 duty cycle.

Answer 1

If you are changing the period and duty cycle then you can use the "Variable Frequency PWM" block.  See the simple example attached.