Pulses and Waveforms

#1 Pubblicato: 16/04/2021 17:32:09

9 apprezzamenti in 90 post.

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Hello SMATH Forum,

I recently came across a set of MathCad sheets, which I am attempting to extract a small sample; rectified waveform and ripple. As I am trying to reconstruct in SMath, early on, I cannot resolve a few definitions; functions "rect1(...)" and "g1hw(...).

I'm hoping someone can help. Attached is my SMath sheet and the reference MathCad15 files.

File non trovato.File non trovato.File non trovato.

I welcome your review and look forward to your reply.

Sincerely,

Norm

#2 Pubblicato: 16/04/2021 18:36:17

Jean Giraud

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The *.sm document does not open ... PDF YES
Play with these two ... Jean

Page5 Norm.sm (20,55 KiB) scaricato 1407 volta(e).

#3 Pubblicato: 16/04/2021 21:00:31

Jean Giraud

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... added numerical convolution.
From brushing the *.PDF "pulse" has no limit.
Show some you need for concluding a project.

Page5 Norm.sm (26,84 KiB) scaricato 1363 volta(e).

#4 Pubblicato: 16/04/2021 22:07:11

Norm Schutzkus

9 apprezzamenti in 90 post.

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Pulses and Waveforms work in progress.sm (679,02 KiB) scaricato 1278 volta(e).

Thanks Jean! I hope the attached works now.

The function g1hw fails. The comment "k - not defined". Hopefully, the attached pdf of my fist page give you an idea. Pulses and Waveforms work in progress - nas.pdf (129,72 KiB) scaricato 758 volta(e).

Best regards,

Norm

#5 Pubblicato: 16/04/2021 22:42:57

Alvaro

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Hi Norm. Some few notes:
- For speed up the code, you must to put at some places some eval() in SMath.
- Some vectorization are automatics in Mathcad, but not in SMath. Here you can use the index nk instead implicit or explicit vectorization, as shows the picture.
- N0.gc is 2^8, and it is for use as the finite index for fast Fourier sums, but it's too big for SMath. Use something lower.
- T.hw is undefined in you worksheet.

Best regards.
Alvaro.

#6 Pubblicato: 17/04/2021 09:39:55

Jean Giraud

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Wrote
Thanks Jean! I hope the attached works now.

Your latest version opens, but SS 6179 complains, can't make it work.
Can you reproduce as doctored by Alvaro, to see something.
Experiment the Pulse Train ... it does a lot !
Cheers ... Jean

#7 Pubblicato: 17/04/2021 17:57:22

Norm Schutzkus

9 apprezzamenti in 90 post.

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Many thanks Alvaro & Jean,

As always, I appreciate your high-level knowledge using this fantastic tool!

Stay safe and take care.

Sincerely,

Norm

#8 Pubblicato: 01/06/2021 19:39:35

Norm Schutzkus

9 apprezzamenti in 90 post.

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Work in progress...

I gave up on the MathCad "Pulses and Waveforms" conversion.

The attached sheet is not complete, just my attempts at the graphs thus-far. I'll need to spend some time working in the diodes conduction range.

Anyway, using the discharge profile looks close, not correct, but has a close resemblance.

Best regards,

Norm
Single-phase full-wave bridge rectifier circuit with C-filter and resistive load.sm (338,44 KiB) scaricato 1302 volta(e).

#9 Pubblicato: 02/06/2021 13:06:59

Jean Giraud

983 apprezzamenti in 6.866 post.

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Wrote
I gave up on the MathCad "Pulses and Waveforms" conversion.

This one is above my head.
On the other hand, Smath depends largely upon "plugins"
and they don't behave all same, i.e: Fourier stuff.
In the mean time, you can visit these 4 examples.
Cheers ... Jean.

Convolution RC 6179.sm (13,87 KiB) scaricato 1203 volta(e).
Convolution Numerical [Pulse model].sm (26,48 KiB) scaricato 1026 volta(e).
Convolution Pulse Integration.sm (31,68 KiB) scaricato 1201 volta(e).
Laplace Admittance Analyzer.sm (1,03 MiB) scaricato 1337 volta(e).

#10 Pubblicato: 02/06/2021 18:55:11

Jean Giraud

983 apprezzamenti in 6.866 post.

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This one is very useful as you mesh and range from the creation..
Superb to highlight segments.

#11 Pubblicato: 02/06/2021 19:53:24

Norm Schutzkus

9 apprezzamenti in 90 post.

Gruppo: User

Thanks Jean! I'll look at this.

Best regards,

Norm

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