RMS-DC Converter simulation help, please

[TYK]

Hello, everyone:

I'm doing an important project at University right now, and I think I could use some help. The project is about simulating some sensors, signal conditioners and other fairly complicated ICs with frequent use in Instrumentation. One of the simulations I am asked to do is the simulation of a generic RMS-DC conversion algorithm. The block diagram that I must implement is the following one, just as my teacher told me:

Being Vs the imput waveform, Vo the output one (converging to RMS value of Vs) and a generic LPF. My problem is that I don't know how to handle feedback very well...this diagram is quite easy to understand, but I'm not very keen at LabVIEW (I have just started learning it) and I cannot implement this (X·Y)/Z feedback. Can you help me? I would appreciate it.

Thank you in advance.

P.S.: Sorry if my English is somehow strange, I'm not a native speaker.

[altenbach]

Are you talking about plain LabVIEW or are you trying to use the NI LabVIEW Control Design and Simulation Module?

[TYK]

I don't think my School has purchased this module, so I think just plain LabVIEW will have to do the task.