Abstract
Experimentation with polyphasic voltages is greatly simplified when microcontrollers are used to generate multiple square waves with fixed phase offsets. Each square wave is sent through a simple second-order Sallen-Key filter to produce an approximately sinusoidal voltage signal. The microcontroller allows the reproduction of split-phase and three-phase voltage relationships, mirroring those commonly distributed on the North American power grid, at safe voltage levels.
| Original language | English |
|---|---|
| Article number | 006094AJP |
| Pages (from-to) | 499-502 |
| Number of pages | 4 |
| Journal | American Journal of Physics |
| Volume | 78 |
| Issue number | 5 |
| DOIs | |
| State | Published - Jun 2010 |
Scopus Subject Areas
- General Physics and Astronomy