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I want to use a comparator to compare a sine wave and a triangle wave in simscape. I can't get the components to connect.

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Steve Barry
Steve Barry on 15 Apr 2021 at 17:18
Answered: Joel Van Sickel on 20 Apr 2021 at 18:54
I'm using Simscape electrical to design a control strategy for the switches in a dc/ac inverter, and I can't get the triangle wave generator to connect to the negative side of the comparator, even with the Simulink-PS Converter. Thank you in advance for any assistance you can provide.

Accepted Answer

Joel Van Sickel
Joel Van Sickel on 20 Apr 2021 at 18:54
Unfortunately, the ps signal blocks don't work with those connection labels. Instead, you can make the switches take in electrical wires instead of physical signal blocks. The electrical wire does work with the connection labels. To do this, right click the switch, and find the simscape menu, go to block choices, and select electrical control port. Please see the image below.

More Answers (2)

Joel Van Sickel
Joel Van Sickel on 19 Apr 2021 at 12:59
You need to use the Ps-Simulink converter, and then feed that signal into a controlled voltage source to interface with the elctrical comparator. Or, you can do everything in simulink and only bring out the gate signal once it is generated.

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Amrtanshu Raj
Amrtanshu Raj on 20 Apr 2021 at 13:47
You need to use a controlled voltage source block to convert a physical signal to a Electrical Signal.
I have attached a sample model that explains how to interface a Sine wave Block with Comparator. You can modify it as per your needs.
Hope this helps
Steve Barry
Steve Barry on 20 Apr 2021 at 14:56
My apologies for the confusion. The original problem has evolved. Here's a picture of where I am now.

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