Total Harmonic Distortion In Power Systems
It would be nice if, at least in the US, the power that came from the wall was truly noise free. Unfortunately, this is not the case, and although a power system can appear to output a clean sine wave, zooming into an oscilloscope trace or using an FFT will tell you a different story. When you take dirty power, put it through rectification, and then pass it through a switching regulator, you introduce additional noise into the system that further...