The circuit in Figure 1 measures both the true-rms value and the rectified average value of an ac signal. This design uses two low-cost ICs in SOIC packages and consumes only 180 µA of quiescent ...
Hands up all who remember I did a blog on measuring the RMS (root mean square) value of a signal. Hmmm. Nobody! Well for those of you who don’t believe that I wrote one you can find it here: RMS ...