| Abstract |
Increasingly faster switching and higher switching frequencies amplify the impact of parasitics of theDC-link causing higher voltage overshoots, oscillations, losses and also EMI. Higher-frequency resonancesdue to polarization effects of dielectrica and oscillations between either different capacitors orcapacitors and switches (or even other components) due to a mismatch of pcb parasitics and componentimpedances are just some of the possible causes. This paper marks the beginning of a series of studieswith the aim of a set of design rules for DC-links of high switching frequency power electronics. Thereforecircuit simulations, impedance measurements (of capacitors and pcb's) and experiments using anevaluation platform are carried out. Some of the results are presented in this paper. |
