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. 09, 2019
Filed:
Feb. 21, 2017
Kuka Deutschland Gmbh, Augsburg, DE;
Sebastian Zehetbauer, Munich, DE;
KUKA Deutschland GmbH, Augsburg, DE;
Abstract
An electrical device includes an electrical load, an electronic switch with an electronic switching element and a driver controlling the electronic switching element, and at least one pulsed power supply having a power unit coupled with the electronic switching element and configured to generate an electrical supply current for the electrical load from a voltage based on alternately turning on and off the electronic switching element. During operation of the power supply, an electrical current associated with the electronic switching element flows through a current path. A pulse transformer has a primary side coupled with the power unit such that the electrical current flows through a primary-side winding. A comparator compares a secondary-side electrical voltage or a filtered secondary-side electrical voltage of the transformer, and an evaluation device coupled with the comparator detects potential defects of the electronic switch based on the result of the comparison.