Patent · US Active

Method for detection of the presence of a load and drive circuit

US7812590B2 · kind B2 · utility

3Cited by

5References

19Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Martin Kaltenegger · Graz, AT
Gunter Schwarzberger · Reitmehring, DE
Heinrich Trebo · Graz, AT
Peter Lang · Gelnhausen, DE

Key dates

Filing date	Sep 17, 2007
Grant date	Oct 12, 2010
Priority date	—
Expiry date	Jul 28, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH03K17/687
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Methods and apparatuses for detection of a presence of a load. A method may include, for example, applying and subsequently removing a supply voltage across the pair of nodes, comparing an electrical potential at one of the pair of nodes at a time after the supply voltage is removed with a reference value, and generating a signal having a value that depends upon an outcome of the comparison.

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