Photovoltaic (PV) power generation is increasing day by day and with use of Power Electronic semiconductor switches, highly efficient and low cost pure sine wave inverters can be investigated. This book explores various topologies for photovoltaic inverter for stand-alone application. The three basic types of PV inverters are centralized inverter, string inverter and module integrated/module oriented micro-inverters. Out of these three, micro-inverter topologies are discussed in this book. There exist different topologies related to single phase micro inverters which are widely used in industrial and residential applications. Here, fly back and full bridge isolated micro-inverters are discussed.