Patent · US Active

Reverse polarity protection for MOSFETs

US8067859B2 · kind B2 · utility

3Cited by

5References

23Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Benno Koeppl · Markt Indersdorf, DE
Karl-Dieter Hein · Schwindegg, DE
Frank Auer · Herbrechtingen, DE

Key dates

Filing date	Dec 11, 2008
Grant date	Nov 29, 2011
Priority date	—
Expiry date	Dec 3, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH03K2217/0045
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a control circuit and a corresponding method for controlling MOSFETs coupled to the control circuit. The MOSFETs are coupled to a load to couple the load to a power supply, or the MOSFETs are coupled to a generator. In case of inverted polarity, the control circuit switches the MOSFETs to their conducting state to prevent damaging the MOSFETs.

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