Patent · US Active

Method and pulse-width-modulated current control circuit for driving inductive loads in motor vehicles

US8704508B2 · kind B2 · utility

4Cited by

7References

22Claims

0Family size

Assignee

Continental Teves AG & Co. OHG · DE

Inventors

Wolfgang Fey · Niedernhausen, DE
Micha Heinz · Darmstadt, DE
Wolfgang Joeckel · Mücke, DE
Peter Oehler · Scheinfeld, DE
Axel Schmitz · Gommiswald, CH
Frank Michel · Rosbach, DE

Key dates

Filing date	May 11, 2007
Grant date	Apr 22, 2014
Priority date	—
Expiry date	Nov 19, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH02M3/1555
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Method in which the current is measured inside an integrated PWM control circuit using at least one A/D converter which is likewise integrated in the circuit is described. The PWM controller is provided for the purpose of driving inductive loads and is arranged, in particular, in an electronic circuit of an electronic controller for a motor vehicle braking system. Before determining the actual current of the PWM controller, which is determined using the at least one A/D converter, the current is smoothed using a low-pass filter. A circuit arrangement for carrying out the above method and its use in electronic motor vehicle control systems is also described herein.

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