Specifying an AC Power Source: A Tutorial

摘要

To properly specify an AC power source, you need to fully understand the nature of the load that is connected to it. Certain characteristics can greatly impact the sizing of the source, including the load's power factor (PF) and whether it is nonlinear or linear. Of course, it also is important to know the voltage range and worst-case current as well as inrush current. Six basic steps can help simplify your selection of an AC source. But first, here is some basic information on AC power sources and loads.