公开(公告)号：US20180041120A1

公开(公告)日：2018-02-08

申请号：US15227116

申请日：2016-08-03

申请人： SCHNEIDER ELECTRIC IT CORPORATION

发明人： Hui-Jung Chen ,  Hsuang-Chang Chiang

IPC分类号： H02M3/158 ,  H02M1/42

CPC分类号： H02M3/158 ,  H02M1/4208 ,  H02M3/07 ,  H02M2001/0048 ,  Y02B70/126 ,  Y02B70/1425 ,  Y02B70/1491

摘要： According to one aspect, embodiments herein provide a DC-DC converter system comprising a plurality of switches configured to receive input DC power having a DC voltage level from a DC voltage source, a first capacitor coupled to the plurality of switches, a second capacitor coupled to the plurality of switches, and a controller configured to operate the plurality of switches such that in a first mode, voltage across the first capacitor is at a level equal to substantially half of the DC voltage level of the input DC power, in a second mode, voltage across the second capacitor is at a level equal to substantially half of the DC voltage level of the input DC power, and an output voltage level of DC power at an output is stepped down, by a voltage step down ratio, in relation to the DC voltage level of the input DC power.

公开(公告)号：US09774263B1

公开(公告)日：2017-09-26

申请号：US15229151

申请日：2016-08-05

申请人： SCHNEIDER ELECTRIC IT CORPORATION

发明人： Hui-Jung Chen ,  Damir Klikic ,  Kuo-Liang Lee ,  Hsuang-Chang Chiang

IPC分类号： H02M3/337 ,  H02M3/335 ,  H02M1/08 ,  H02M1/00

CPC分类号： H02M3/33507 ,  H02J7/345 ,  H02J9/06 ,  H02M1/08 ,  H02M3/33569 ,  H02M3/337 ,  H02M3/3372 ,  H02M3/3376 ,  H02M3/3378 ,  H02M7/217 ,  H02M2001/0009 ,  H02M2001/0096 ,  H02M2001/325

摘要： According to one aspect, embodiments herein provide an AC-DC converter comprising a rectifier, a capacitor, a DC bus coupled to the capacitor, a plurality of first switches coupled to the DC bus, a plurality of second switches coupled between the rectifier and the first switches, a transformer having a primary winding and a secondary winding, the primary winding coupled to the plurality of first switches, the plurality of second switches, and the rectifier, and the secondary winding coupled to an output, and a controller configured, in response to a determination that the input AC power is acceptable, to operate the plurality of second switches and the plurality of first switches such that output DC voltage is maintained at a desired output DC voltage level, and operate the plurality of first switches such that a DC bus voltage on the DC bus is maintained at a desired DC bus voltage level.