Patent · US Active

Soft starter, operating method, and switching system

US11108344B2 · kind B2 · utility

0Cited by

2References

14Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Kyoung-Jin Lee-Hoff · Amberg, DE
Johann Seitz · Amberg, DE
Klaus Aufschneider · Illschwang, DE
Dirk Hertz · Fichtenhof, DE
Markus Meier · Aarau, CH
Stefan Zitzler · Schwandorf, DE

Key dates

Filing date	Aug 3, 2017
Grant date	Aug 31, 2021
Priority date	—
Expiry date	May 16, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH02M5/293
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a soft starter (10) for connecting at least one main circuit (12, 14, 16), each of which includes a bypass circuit (20) having a semiconductor switch (22). Said soft starter (10) comprises a control unit (40) for actuating the bypass circuit (20), and the control unit (40) is equipped with a control signal input (44). According to the invention, the control unit (40) has a separate safety signal input (42).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.