
12-1
12.1 Introduction
AC-to-DC family of converters constitutes the interface circuit between the network and the loads.
ese converters are known by single-phase or three-phase active rectiers. ey do play an important
role in controlling the energy transfer from the utility to the load and vice versa. With the ever increase
of power quality requirement at the point of common coupling with the network, AC-to-DC convert-
ers are nowadays required to achieve dierent tasks such as: provide high input power factor, low line
current distortion [1–3], xed output voltage and robustness to load, and utility voltage unbalances.
Several topologie