公开(公告)号：US09743509B2

公开(公告)日：2017-08-22

申请号：US13159743

申请日：2011-06-14

Applicant: Peter Sven Jansson ,  Anders Lars Uddner

Inventor： Peter Sven Jansson ,  Anders Lars Uddner

IPC: H02M7/00 ,  H05K1/02 ,  H05K1/14 ,  H05K3/00

CPC classification number: H05K1/0263 ,  H02M7/003 ,  H05K1/144 ,  H05K3/0061 ,  H05K2201/042 ,  H05K2201/10166 ,  H05K2201/10272

Abstract: It is presented an inverter type motor drive device for feeding three phase AC electric power to an electric motor, the inverter type motor drive device comprising: an insulated metal substrate board on which, for each of the three phases, a plurality of power switches are mounted in straight lines in switch assemblies along a first direction; a printed circuit board on which a plurality of capacitors are mounted; and two DC power input terminals. The inverter type motor drive device further comprises three AC power output terminals, each extending through the printed circuit board while avoiding galvanic contact with the printed circuit board, and each of the three AC power output terminals comprise an elongated AC busbar, wherein a longitudinal direction of the AC busbar extends along the first direction.

公开(公告)号：US09853572B2

公开(公告)日：2017-12-26

申请号：US14652309

申请日：2013-11-28

Applicant: Inmotion Technologies AB

Inventor： Ulf Bengt Ingemar Karlsson

IPC: H02M3/335 ,  H02M7/5387 ,  H02M1/34 ,  H02M7/493

CPC classification number: H02M7/5387 ,  H02M7/493 ,  H02M2001/342 ,  Y02B70/1491

Abstract: A bridge leg switching a DC voltage to produce an AC voltage at its output terminal for supply to an inductive load. The bridge leg has first, second, third, and fourth switch assemblies, and at least a first inductive element. The first and second switch assemblies are serially connected between the bridge leg input terminals, the bridge leg output being formed at a point of interconnection of the first and second switch assemblies. The third and fourth switch assemblies are serially connected between the bridge leg input terminals, the inductive element being connected between a point of interconnection of the third and fourth switch assemblies and the bridge leg output. The third and fourth switch assemblies are controlled such that reverse current through either of the first or second switch assembly is reduced compared to bridge leg output current prior to the moment the bridge leg output is switched.