Pulse generation with variable frequency
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Hi everyone
I am trying to implement a pulse generator that generates pulses with variable frequency; let's say teh frequency is varying from 90kHz to 110 kHz; the pulse generation block only has fixed frequency.
Also, it is important to maintain the duty cycle 50%, which means giving 90to110 kHz to a sine block and comparing it to zero would not work (as far as I know by trying it)>
I would appreciate if anyone has any idea on this matter.
回答（1 个）
Mathieu NOE
2022-12-14
0 个投票
hello
it's a matter of how you implement the idea
here one solution
the attached model is a fixed step euler simulation
you have to initialize dt = 1e-7 in your workspace first
for the demo I have amplified the variable amount of the frequency
the graph below shows frequency, angle and output signal (as expected)
4 个评论
Mathieu NOE
2023-1-31
hello again
If my submission fullfills your request, do you mind accepting it ?
tx
Nandhini
2023-4-20
For the above circuit i need to vary the Ton and Toff time period for each cycle without changing the duty cycle is possible... Because 2 or 3 cycles having the same time period.. I need random pulse without changing the frequency... Could you please help me
Mathieu NOE
2023-5-12
I am not sure to understand how you can have random pulse with fixed constant frequency
Nandhini
2023-9-19
Need to main the duty ratio.. it may be +/- 1/3 of the desired frequency.. still i am trying to produce a pulse signal like that.
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2022-12-13
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