  This article presents the main topics related to one-quadrant power
converters. The basic topologies are analysed and a simple methodology to
obtain the steady-state output-input voltage ratio is set out. A short
discussion of different methods to control one-quadrant power converters is
presented. Some of the reported derived topologies of one-quadrant power
converters are also considered. Some topics related to one-quadrant power
converters such as synchronous rectification, hard and soft commutation, and
interleaved converters are discussed. Finally, a brief introduction to resonant
converters is given.
