SWITCH MODE POWER SUPPLY

摘要

The invention relates to a switch mode power supply provided with controlled main switching means which are switched to the conducting and non-conducting state periodically by means of a switching signal and which are provided with a control electrode and two main electrodes. According to the invention, the switch mode power supply is characterized in that a ceramic bead is directly electrically connected to one of the main electrodes of the controlled main switching means. Preferably, the bead is a ferrite bead. The bead on the one hand effectively counteracts the occurrence of a high-frequency interference signal and on the other hand further reduces switching losses.