Effect of input and output terminal sources on dynamic behavior of switched-mode converters

Voltage-type sources such as grid, constant-voltage-regulated power supplies, and storage batteries have dominated as input sources for power electronic converters leading to development of multitude of different power stages dedicated for such input sources. The growing application of renewable energy sources has revealed that there are also current-type input sources such as e.g. photovoltaic generator requiring different kind of power electronic converters for interfacing them to practical usage. There are persistent assumptions that the power stage itself determines the steady-state and dynamic properties of the corresponding converter. This paper introduces the decisive factors determining the properties of specific power stages. The findings are supported with comprehensive experimental measurements.