Abstract
A type of multilevel configuration known as flying capacitor (FC) converter is presented in this chapter under powerblock geometry (PBG) point of view. The main challenge of the FC configuration is to keep the FC voltage under a desired level, avoiding distortion at the ac part of the converter. The chapter discusses strategies to balance the FC voltage. It presents the power blocks (PBs) and the circuit with switches for the FC three-level topology, as also the model and Table of Variables. The chapter deals with a simple pulse width modulation (PWM) strategy applied for the three-level circuit. It also presents the FC voltage regulation, and shows the FC topologies for single-phase (full-bridge) and three-phase applications, respectively. The chapter outlines other circuits of three-phase converters, and considers four-level topologies.
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