公开(公告)号：AU2012213942B2

公开(公告)日：2014-07-03

申请号：AU2012213942

申请日：2012-08-14

Applicant: ABB SCHWEIZ AG

Inventor： DUJIC DRAZEN ,  CANALES FRANCISCO ,  MESTER AKOS

IPC: H02M3/335

Abstract: Abstract The present invention relates to a converter (1) comprising: - an active stage (2) for converting an AC input voltage (ui,) at an AC input into an intermediate DC voltage (Uz); - a DC/DC converter (3) for transforming the intermediate DC voltage (Uz) into an output DC 10 voltage (Uout) at an DC output, wherein the DC/DC converter (2) has a resonant transformer (32, 33), in particular being formed by a resonant circuit (32) and a transformer (33), - a control unit (5) configured - to actively operate the active stage (2) only based on an output DC voltage (Uout) of the DC/DC converter (3), an input voltage (uin) and an input current of the converter (1), and 15 - to operate the DC/DC converter (3) in an open loop mode. - 1/3 _ _ _ _ _ _ _ _ _4 LL - .m -, Iz I I I E)