How to Create a repeating pulse using single pulse without using Source Block(simulink)

Hi All I have created a single pulse which i want it to repeat every 2 seconds. How can i do that without using any of wave generator.

[TAB]

What is source of your single pulse ?

How it works ?

[spoon]

i have used 1 [constant] as an input for bitwise XOR and another input to bitwise XOR is same 1 [constant] but with 3ms delay. . this pulse has to be repeated every 2 seconds. .

[TAB]

I am not sure, but you can place your pulse source in a triggered subsystem to trigger it at some interval to repeat the pulse every 2 second.

Or use a while iterator block to repeat the output with some time delay arrangement.

Answer 1

[rajesh]

i am facing similar problem, but here i used pulsetran function for generating pulse, if i multiply with sine signal with this pulse, i am getting something else. can i know how u have created this pulse? any code. Thanks in advance

[contessa mima]

hi rajesh. i need doc and videos to learn using pulstran function to generatre a pulse train signal.i'm new at matlab. can you help me?

Answer 2

[Kaustubha Govind]

This is just one way, but I've used it in the past to generate a pulse-sequence with 50% pulse-width:

   -----            -------------------------
   | 0 |---------->|                         |
   -----           |                         |
   Constant0       |     Switch block        |
------------------>|-|                       |-------------> Repeating Pulse
|  -----           | Criteria: u2>=Threshold |       |
|  | 1 |---------->|       Threshold=0.5     |       |
|  -----           |                         |       |
|  Constant1        -------------------------        |
|                                                    |
|                          ----------                |
 -------------------------|Unit Delay|<--------------|
                           ----------

You will need to tweak the sample times of the blocks to get a different pulse width - or alternately, use this generated pulse in place of your Constant block and XOR it with a delayed version of itself.

[spoon]

tried above model. .

Answer 3

[spoon]

I am able to tweak pulse widths(3ms) for the above model, but what-about 2 secs period between 2 pulses. .

      3ms                           3ms
      ----                          ----
     |    |                        |    |
     |    |<-------- 2Secs-------->|    |
-----      ------------------------      --------------- - - -
     0    0.003                  2.003  2.006
This is the result i am trying for...

[Kaustubha Govind]

With my model, you will get a 50% pulse width. For something other than 50%, you should use my model as a source for your model (ie. instead of the Constant block, but with the XOR, etc.).