公开(公告)号：EP3813246A1

公开(公告)日：2021-04-28

申请号：EP19205300.7

申请日：2019-10-25

Applicant: ABB Schweiz AG

Inventor： Bianda, Enea ,  Li, Tin-Ho ,  Huusari, Juha ,  Ho, Ngai-Man

IPC: H02M7/5387

Abstract: A full-bridge inverter (100) based on a unipolar switching scheme comprises a first branch (102) and a second branch (104) in parallel between a first DC node (10) and a second DC node (12), the first branch (102) comprising a first higher switch (106) and a first lower switch (108) in series, and the second branch (104) comprising a second higher switch (110) and a second lower switch (112) in series. A filter circuit (150) comprises a first inductor (152) and a second inductor (158). One pin (154) of the first inductor (152) is coupled with a first branch conductor (120), and the first branch conductor (120) is coupled between the first higher switch (106) and the first lower switch (108), and an opposite pin (156) of the first inductor (152) is electrically coupled with a first output node (190). One pin (160) of the second inductor (158) is coupled with a second branch conductor (122), the second branch conductor (122) is coupled between the second higher switch (110) and the second lower switch (112), and an opposite pin (162) of the second inductor (158) is coupled with a second output node (192) of the full-bridge inverter (100). A first filtering unit switch (164), a first filter diode (166), a second filter diode (168) and a second filtering unit switch (170) in series are coupled between the first branch conductor (120) and the second branch conductor (122), cathodes of the first diode (166) and the second diode (168) are coupled together. A cathode of a third filter diode (172) is coupled with the first output node (190), and a cathode of a fourth filter diode (174) is coupled with the second output node (192). The anodes of the third diode (172) and the fourth diode (174) are coupled together. A third inductor (176) is coupled between the cathodes of the first diode (166) and the second diode (168) and the anodes of the third diode (172) and the fourth diode (174).

公开(公告)号：EP2882083B1

公开(公告)日：2017-08-16

申请号：EP13195824.1

申请日：2013-12-05

Applicant: ABB Schweiz AG

Inventor： Ho, Ngai-Man ,  Li, Tin-Ho

IPC: H02M1/42 ,  H02M1/12

CPC classification number: H02M1/4208 ,  H02J3/01 ,  H02M1/4225 ,  H02M2001/123 ,  Y02B70/123 ,  Y02B70/126