| Quasi-quantitative combined small signal analysis to predict radiated emission of DC-DC buck converters |
| Gergely Friedl, Miklós Kuczmann |
Abstract: This paper proposes a quasi-quantitative combined small signal simulation approach to predict low frequency radiated emission of DC-DC buck converters. A simulation methodology to efficiently replace transient analysis with small signal analysis, and the environmental effects on the low frequency radiated emission are discussed. The efficiency and accuracy of the approach is presented through measurements and simulations performed on an evaluation board designed for the TPS54560 type switching IC. The simulation results fit very well to the measured radiated emission performance of the DC-DC converter module. With the proposed approach, fast and accurate parametric results can be achieved without using time consuming transient analysis. Keywords: electromagnetic compatibility, simulation, radiated emission, DC-DC converter |
| DOI: 10.47978/TUS.2023.73.01.001 |
| Sheet-Metal Forming Processes with Local Plastic Deformation by using Conventional Spinning Methods - Introduction |
| Antonio Nikolov |
Abstract: In the present paper is carried out a literature review of the scientific works and publications concerning the processing of sheet-metal by local plastic deformation using the method of conventional spinning. The idea to write the article arose after a thorough search for technical literature and information on the subject in Bulgaria and it was found that such information is insufficient or incomplete. It is necessary to review and systematize knowledge about spinning from Antiquity to the present day, which will serve as a basis for future research in the field of local plastic deformation achieved by the method of spinning. Keywords: flow forming, spinning, deformation of sheet material, deep drawing |
| DOI: 10.47978/TUS.2023.73.01.002 |