公开(公告)号：US20240317087A1

公开(公告)日：2024-09-26

申请号：US18574198

申请日：2022-06-22

Applicant: UNIVERSITÄT PADERBORN

Inventor： Frank SCHAFMEISTER

IPC: B60L53/22 ,  H02M1/00 ,  H02M1/42

CPC classification number: B60L53/22 ,  H02M1/007 ,  H02M1/4233 ,  B60L2210/12 ,  B60L2210/14

Abstract: The disclosure relates to a transformerless on-board charging device for electric vehicles for the low-leakage current charging of a traction battery BAT having a first DC-DC stage and a second DC-DC stage, where the two DC-DC stages are connected in series as a double stage, where the first DC-DC stage and the second DC-DC stage each have



at least two switching elements, in particular one transistor and one diode or two transistors,
at least one inductor coil, and
at least one output capacitor.




Furthermore, the disclosure relates to an associated method for controlling a DC-DC stage in a transformerless on-board charging device for electric vehicles.