Proper way to use op-amp in SimPowerSystems

Hi,

I want to use op-amp in simpower systems but I can't seem to make it work. I've read from one forum to use an adder and connect it to a gain block then using s-ps converter, but still simulink won't let me connect the s-ps block to the simpower block.

You can check out the screenshot below: http://i1302.photobucket.com/albums/ag127/renguoma/attemptedop_zps138c469f.jpg

I know this is very simple but I really can't find any other solutions out there. Please help. Thanks.

[Kunji]

i hope it's ok to bump this thread again, but I still haven't found any solution :(

Answer 1

[Haoyu]

Just remove S-PS block. It would work since all signals are within the PS signal.