SLLA498A October 2020 – December 2024
All the topologies have their respective pros and cons when it comes to particular applications and use cases. The ultimate choice of a power topology boils down to the intended use case of that specific power converter block, namely the input and output parameters, the targeted power levels, efficiency and power density targets to name a few. While high power three-phase commercial inverters would look at complex multilevel three-phase PFC stage and DC-DC stage to pack more-and-more power into them, the single-phase residential inverters could be addressed by simpler non-isolated topologies. With storage ready inverters being state-of-the-art, bidirectionality becomes essential of both DC/DC converter for the battery port and converter towards the grid. Use of wide band-gap devices and high-performance MCUs add to the list of advantages by enabling smaller component sizing, high power density, high efficiencies and high functionality.