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:
Dec. 05, 2023
Filed:
Apr. 10, 2019
Danfoss Power Electronics A/s, Gråsten, DK;
Nicklas Södö, Nordborg, DK;
Juha Norrena, Nordborg, DK;
DANFOSS POWER ELECTRONICS A/S, Grasten, DK;
Abstract
A method for detecting low impedance condition at an output () of an electrical converter (), a control unit (), a computer program product, and an electrical converter () are presented. The method includes determining () a first current value (I(T)) of a first current (I), and a second current value (I(T)) of the first current (I), and determining () a first current difference (ΔI) between the first (I(T)) and the second (I(T)) current values, and comparing () the first current difference (ΔI) to a first current difference threshold (I_TH), and if the first current difference (ΔI) is of predefined magnitude with respect to the first current difference threshold (I_TH), such as higher, turning off () a first voltage (U) driving the first current (I), such as by switching off a corresponding switch or switches for applying the first voltage (U) to the output ().