公开(公告)号：US20170324271A1

公开(公告)日：2017-11-09

申请号：US15524494

申请日：2015-10-20

Applicant: ABB Schweiz AG

Inventor： Gabriele Valentino De Natale ,  Luciano Di Maio ,  Massimiliano Villano

IPC: H02J9/06

CPC classification number: H02J9/061 ,  H02J7/025 ,  H02J9/06 ,  H02J13/0006 ,  H02J50/10 ,  Y02B70/3291 ,  Y02B90/222 ,  Y02E60/724 ,  Y04S10/18 ,  Y04S20/12 ,  Y04S20/248

Abstract: A power supply unit for an IED for LV or MV electric power applications characterized in that it comprises: a power transformer stage, which is operatively coupled to a feeding conductor to harvest electric power from said feeding conductor; a first storage stage, which is electrically connected to said power transformer stage to store electric energy; a first step-down conversion stage, which is electrically connectable/disconnectable to/from said first storage stage; a switching stage adapted to electrically connect/disconnect said first step-down conversion stage with/from said first storage stage; and a second storage stage, which is electrically connected to said first step-down conversion stage to store electric energy.

公开(公告)号：US10944333B2

公开(公告)日：2021-03-09

申请号：US15524494

申请日：2015-10-20

Applicant: ABB Schweiz AG

Inventor： Gabriele Valentino De Natale ,  Luciano Di Maio ,  Massimiliano Villano

IPC: H02M7/02 ,  H02J9/06 ,  H02J13/00 ,  H02J7/02 ,  H02J50/10 ,  H02M3/22 ,  H02M7/30

Abstract: A power supply unit for an IED for LV or MV electric power applications characterized in that it comprises: a power transformer stage, which is operatively coupled to a feeding conductor to harvest electric power from said feeding conductor; a first storage stage, which is electrically connected to said power transformer stage to store electric energy; a first step-down conversion stage, which is electrically connectable/disconnectable to/from said first storage stage; a switching stage adapted to electrically connect/disconnect said first step-down conversion stage with/from said first storage stage; and a second storage stage, which is electrically connected to said first step-down conversion stage to store electric energy.