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:
Oct. 18, 2022
Filed:
Nov. 12, 2019
Siemens Aktiengesellschaft, Munich, DE;
Karsten Handt, Berg, DE;
Stefan Hänsel, Erlangen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
An electronic switch is composed of two anti-serially connected turn-off semiconductor switches having at least four terminals and at least three terminals, respectively. A method for detecting a turn-off current through the electronic switch for a DC voltage grid includes measuring a first voltage between an emitter terminal and an auxiliary emitter terminal at the first switch, measuring a second voltage between a collector terminal and an emitter terminal or between a drain terminal and a source terminal at the second switch, comparing the first and second measured voltage or a time integral of the first and second measured voltage with a reference value, and turning off at least one of the two turn-off semiconductor switches when the reference value is exceeded. An electronic switch for performing the method and a DC voltage grid with such an electronic switch are also disclosed.