Compact step down voltage converter constructed in terms of EMC

Designing of compact step down voltage converter must be provided according to the variety of standards and other requirements. Moreover, the constructed converter usually have to accomplish a set of opposite requirements defined by a target project or a target user (small size vs. high maximum level of provided current, etc.). Therefore the designing of converter could be really tricky. This paper tries to show the possibilities of a really low-end DC/DC converter based on controller AOZ 1284. Moreover, the constructed device is a subject for set of measurement. These measurements are performed in order to confirm that the device meet all requirements defined by standard EN 61000-6-3. All measurement results together with some necessary measures are presented at the end of this paper.