Semiconductor switching circuit

Colin Davidson (Inventor), Ikenna EFIKA (Inventor), David Trainer (Inventor)

Research output: Patent

Abstract

A semiconductor switching circuit, for use in a HVDC power converter, includes a main current branch including a main semiconductor switching element through which current flows when the main semiconductor switching element is switched on; and an auxiliary current branch connected in parallel or inverse-parallel with the main current branch. The auxiliary current branch includes an auxiliary circuit having a plurality of active auxiliary semiconductor switching elements connected to form an active switching bridge, and the auxiliary current branch further includes an energy storage device and/or an impedance device. The active switching bridge has a control unit operatively connected therewith, and the control unit is configured to switch the active switching bridge to connect the auxiliary circuit into and out of circuit with the main current branch and thereby selectively create an alternative current path whereby current flowing through the main current branch is diverted to flow through.
Original languageEnglish
Patent numberUS2017126015A1
IPCH02J4/00
Priority date10/06/14
Filing date9/06/15
Publication statusPublished - 4 May 2017

Keywords

  • HVDC power converter
  • semiconductor switching element

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  • 中华人民共和国国家知识产权局: Fault Protection for Voltage Source Converters

    Davidson, C., EFIKA, I. & Trainer, D., 9 Nov 2018, IPC No. H02J3/36, H02M1/32, H02M7/483, Patent No. CN108781035A, 1 Mar 2017, Priority date 1 Mar 2017, Priority No. EP2017054711W

    Research output: Patent

    Open Access
  • Semiconductor switching circuit

    Davidson, C., EFIKA, I. & Trainer, D., 13 Sep 2017, IPC No. H02J4/00, H02M7/483, H02M7/7575, H02M2001/344, H02M2007/4835, Y02E60/60, Patent No. EP2955837B1, 10 Jun 2014, Priority date 10 Jun 2014, Priority No. EP14275134.6A

    Research output: Patent

    Open Access
  • Semiconductor switching circuit

    Davidson, C., EFIKA, I. & Vershinin, K., 8 Jun 2016, IPC No. H02J3/36, H03K17/12, H03K17/567, H03K17/722, Patent No. EP3029834A1, 3 Dec 2014, Priority date 3 Dec 2014, Priority No. EP14275250

    Research output: Patent

    Open Access

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