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:
Aug. 18, 2020
Filed:
Nov. 26, 2019
Conti Temic Microelectronic Gmbh, Nuremberg, DE;
Erwin Kessler, Bad Saulgau, DE;
Abstract
A method for identifying correct operation of an electrical switching unit, having a full bridge circuit and inductive load operated by the full bridge circuit. The full bridge circuit includes a first semiconductor switching element supplying the inductive load with a first supply voltage potential and a second semiconductor switching element supplying the inductive load with a second supply voltage potential, having a smaller value than the first supply voltage potential. The first and second semiconductor switching element each have a diode. The method determines that the first semiconductor switching element changes from an activated state into a deactivated state, measures a voltage applied to the second semiconductor switching element, compares the measured voltage with a first threshold and detecting that, if the measured voltage on the second semiconductor switching element falls below the second supply voltage potential by the predefined first threshold, the electrical switching unit is operating correctly.