Patent · US Active

Current source and control device

US7965072B2 · kind B2 · utility

1Cited by

4References

7Claims

0Family size

Assignee

VDO Automotive AG · DE

Inventors

Harald Schmauβ · Donaustauf, DE
Walter Schrod · Regensburg, DE

Key dates

Filing date	Jul 24, 2006
Grant date	Jun 21, 2011
Priority date	—
Expiry date	May 13, 2028

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M63/0026
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A current source contains a first switching element which is provided with a control input and is embodied and arranged in such a way that an output flow on an output side of a current source can be adjusted according to a control signal at the control input. The current source also contains a reference resistance that is electrically coupled to a first switching element in such a way that a potential difference above the reference resistance represents the output flow. The adjustment signal of a regulator unit depends on the voltage difference above the reference resistance, is the control signal of the first switching element, and contains a time function element which limits a first value of the output flow to a maximum duration and then reduces the value of the output flow.

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