AC chopper using four switches
ABSTRACT Several circuits were proposed as methods for adjusting AC power.
In this paper, the authors propose an AC chopper circuit with four
switches and examine the fundamental character of the circuit. It has a
simple configuration and excellent performance. The DC snubber can be
used by dividing an input filter capacitor into two parts. The proposed
circuit has high efficiency for adjusting AC power, because it is
composed of fewer switches and DC snubbers
[show abstract] [hide abstract]
ABSTRACT: In this paper the study of direct AC-AC converter topologies, which make use of switches in commercial settings, will be performed. Several topologies are presented, including some already known in the literature and new ones. For one of the presented topologies, the design of a 3 kVA line conditioner is developed and experimental results are shown, certifying the correct operation of the drive strategy used.