SWITCHED-MODE POWER SUPPLY COMPRISING ADAPTIVE AND LOSS-FREE SWITCHING OPERATIONS

摘要

The invention relates to a switched-mode power supply (10) for converting an electric input variable (U_e) into an output variable (U_a), said supply comprising at least one inductance (L), which can be switched against an achievement potential (3,5) or a reference potential (4,6) using several switches (a-d). The switching losses of the converter (10) can be substantially reduced if at least one switch (a-d) is only activated in a zero-voltage mode.