Patent · US Expired

Electronic switching device and an operating method thereof

US7082020B2 · kind B2 · utility

14Cited by

17References

55Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Peter Friedrichs · Koblenzer Straße, DE
Heinz Mitlehner · Uttenreuth, DE
Reinhold Schorner · Großenseebach, DE

Key dates

Filing date	Jan 3, 2002
Grant date	Jul 25, 2006
Priority date	—
Expiry date	Dec 29, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH03K17/567
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A switching device includes at least one MOSFET switching element and at least one JFET protective element, which is connected electrically in series to the switching element and which limits the electric current to a maximum current (saturated current) and control elements, which increase the maximum current of the JFET protective element during the closing operation or in a time-delayed manner, at least in the temporal mean, to at least a higher value and subsequently reduce said maximum current to at least a lower value. The advantage of said switching device is that it allows higher starting or closing overcurrents, which are subsequently limited.

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