How to get continuous time display for oscilloscope?
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I searched already and couldn't find an answer.
I have a circuit that generates a ramp wave. The circuit works on other simulation software, and it works in real life as I've built it before.
When I attach a probe to the output, I get a DC signal. I am assuming that the scope takes a snapshot for something that it thinks is DC, and a time axis if it detects a dedicated AC signal.
Does anyone see anything wrong with the parameters I have specified? cap=2.2nF, R=1k.
The voltage follower simply copies the signal to ensure there is no short to ground.
Thanks fellas, ya'll are baller.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1292920/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1292925/image.png)
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2 个评论
Sabin
2023-2-14
Could you attach the model rather than the print screen? Will be easier to investigate as we don't have all the information.
回答(1 个)
Joel Van Sickel
2023-2-16
Looking at this circuit, shouldn't it require an inverting trigger to work correctly?
5 个评论
Joel Van Sickel
2023-2-17
编辑:Joel Van Sickel
2023-2-17
I'd be interested to see why the not gate doesn't work, but let's assume that won't work based on what you've seen, so you could feed the original signal into a not gate, and then feed the not gate results into the schmitt trigger, essentially creating your own inverting schmitt trigger.
I tried parameterizing the schmitt trigger as if it were inverting, and it wouldn't let me, which would have been a nice alternative.
You could also try and find a spice model of the trigger you used and use the subcircut2ssc command to import that into simscape.
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