Patent · US Expired

Method and electronic circuit for regenerating an electrical contact

US7109721B2 · kind B2 · utility

8Cited by

8References

9Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Helmut Maurer · Rodenbach, DE
Eberhard Schnaibel · Hemmingen, DE
Lothar Raff · Waiblingen, DE
Oliver Hoerrmann · Bietigheim-Bissingen, DE

Key dates

Filing date	Jul 9, 2004
Grant date	Sep 19, 2006
Priority date	—
Expiry date	Sep 21, 2024

Classification

Technology area (CPC H)Electricity
CPC primaryH01H1/605
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method and an electronic circuit for regenerating an electrical contact are provided in order to remedy the problem of electrical contacts becoming highly resistive over time. Electrical contacts become highly resistive over time, particularly when the contacts are thermally highly stressed and/or exposed to corrosive gases. To remedy this undesired effect and to reestablish the low resistance of the contacts, an electrical regenerating signal is applied to these contacts.

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