公开(公告)号：US09755538B2

公开(公告)日：2017-09-05

申请号：US14939792

申请日：2015-11-12

Applicant: ABB Technology AG

Inventor： Arash Rahnamaee ,  Hongrae Kim ,  Zhiguo Pan

IPC: H02M5/458

CPC classification number: H02M5/458 ,  H02M7/4826

Abstract: A power converter includes an output converter having a 3-phase or higher output, an inductor coupled to the output converter and a switch device coupled to the inductor. The switch device charges the inductor via a DC input during a first stage of a switching cycle of the switch device. The output converter discharges the inductor to a load coupled to the 3-phase or higher output during a second stage of the switching cycle. The output converter includes a phase leg for each phase of the 3-phase or higher output, each phase leg having a first thyristor device connected in series with a second thyristor device. Each phase of the 3-phase or higher output originates between the first thyristor device and the second thyristor device of the corresponding phase leg.

公开(公告)号：US20170170824A1

公开(公告)日：2017-06-15

申请号：US14965385

申请日：2015-12-10

Applicant: ABB Technology AG

Inventor： Yu Du ,  Hongrae Kim ,  Taosha Jiang

IPC: H03K17/94 ,  H03K17/687

CPC classification number: H03K17/94 ,  H01C7/02 ,  H01C7/06 ,  H01H2085/0283 ,  H03K17/687

Abstract: A resettable solid state fuse that automatically restores an interrupted circuit after an overcurrent event is cleared. The resettable solid state fuse can include one or more switching devices, such as, for example, a normally-on power semiconductor, and one or more positive temperature coefficient (PTC) resistive elements. The switching device is structured to extend the voltage rating of the resettable fuse, allowing the solid state resettable fuse to attain both a relatively elevated voltage rating and a relatively elevated electrical current rating while using a PTC resistive element. According to certain embodiments, the solid state resettable fuse can be tripped by a cascaded PTC resistive element, thereby providing a passive electronic device that can operate in the absence of electronic sensing, detection, and tripping, as well as without reliance on an auxiliary power supply.

公开(公告)号：US20170141693A1

公开(公告)日：2017-05-18

申请号：US14939792

申请日：2015-11-12

Applicant: ABB Technology AG

Inventor： Arash Rahnamaee ,  Hongrae Kim ,  Zhiguo Pan

IPC: H02M5/458

CPC classification number: H02M5/458 ,  H02M7/4826

Abstract: A power converter includes an output converter having a 3-phase or higher output, an inductor coupled to the output converter and a switch device coupled to the inductor. The switch device charges the inductor via a DC input during a first stage of a switching cycle of the switch device. The output converter discharges the inductor to a load coupled to the 3-phase or higher output during a second stage of the switching cycle. The output converter includes a phase leg for each phase of the 3-phase or higher output, each phase leg having a first thyristor device connected in series with a second thyristor device. Each phase of the 3-phase or higher output originates between the first thyristor device and the second thyristor device of the corresponding phase leg.