The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 22, 2014
Filed:
May. 11, 2007
Wolfgang Fey, Bodolz, DE;
Micha Heinz, Darmstadt, DE;
Wolfgang Joeckel, Gernsfeld, DE;
Peter Oehler, Frankfurt, DE;
Axel Schmitz, Hattersheim, DE;
Frank Michel, Rosbach, DE;
Wolfgang Fey, Bodolz, DE;
Micha Heinz, Darmstadt, DE;
Wolfgang Joeckel, Gernsfeld, DE;
Peter Oehler, Frankfurt, DE;
Axel Schmitz, Hattersheim, DE;
Frank Michel, Rosbach, DE;
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.