How can I use an Op Amp with models from SimPowerSystems and integrate the circuit?

I am working on a compensation based buck converter design which needs simulations. I need to use SimPowerSystems blocks like RLC element, Power Mosfet, Power Diode. Additionally I need to use an Op Amp which is not a SimPowerSystems blockset. I do not need to isolate this circuit because the Power Electronics components are not going to be operated at high voltages. I am intending this for low voltage applications (~ 5V ) hence there should be no issues with the Op Amp voltage wise.

Answer 1

[A Jenkins]

[Abe]

Thank you so much for replying. Could you share the simulink model you just shared a screenshot of it would greatly assist me. Thank you.

[A Jenkins]

Unfortunately I didn't save it, but the components are labeled so you should be able to recreate it pretty quickly by searching the library.

[Abe]

Yes I did do that. I am currently stuck here (photo attached). How do I make the power electronic part of the circuit drive the simscape part. Kinda the opposite of what you have done above. As you can see I used the S-PS converter but I don't know why it wont connect. What am I doing wrong here?

[A Jenkins]

You are missing the Controlled Voltage Source after the S-PS Converter.