Patent · US Expired

Electrical circuit for limiting switching-on current

US7378762B2 · kind B2 · utility

0Cited by

5References

19Claims

0Family size

Assignee

Agfa-Gevaert Healthcare GmbH · DE

Inventors

Rupert Benzinger · Finsing, DE
Hannes Serro · Munich, DE
Michael Keller · Traisen, DE

Key dates

Filing date	Aug 26, 2004
Grant date	May 27, 2008
Priority date	—
Expiry date	Dec 14, 2025

Classification

Technology area (CPC H)Electricity
CPC primaryH03K17/166
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

The invention concerns an electrical circuit for limiting the switching-on current through a load during a switching-on process, comprising an electrical component which is connected in series to the load. To ensure current limitation which is independent of the load and of the value of the supply voltage, and simultaneously to avoid switching current peaks and minimize dissipated heat, the current-limiting component is in the form of an active component which has an internal resistance, and which is controlled by a timing element in such a way that the internal resistance of the component is reduced during a switching-on process.

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