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Published in:
2018 | OriginalPaper | Chapter
9. AC Chopper
Author : Jan A Melkebeek
Published in: Electrical Machines and Drives
Publisher: Springer International Publishing
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Abstract
The aim of the AC chopper (also called AC line control or phase control) is somewhat analogous to the DC chopper, i.e. to obtain a variable voltage. Here, the output is an AC voltage with the same fundamental frequency as the mains supply. An important difference compared to the DC chopper is that also the current is now bi-directional. This chapter discusses the basic circuits and analyses in more detail a pure inductive load, both single-phase and three-phase.