Method for detecting low impedance condition at output of electrical converter, control unit, computer program product and electrical converter
US11837964B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2019 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Dec 8, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for detecting low impedance condition at an output (15) of an electrical converter (10), a control unit (1000), a computer program product, and an electrical converter (10) are presented. The method includes determining (110) a first current value (I1(T1)) of a first current (I1), and a second current value (I1(T2)) of the first current (I1), and determining (120) a first current difference (ΔI1) between the first (I1(T1)) and the second (I1(T2)) current values, and comparing (130) the first current difference (ΔI1) to a first current difference threshold (I1_TH), and if the first current difference (ΔI1) is of predefined magnitude with respect to the first current difference threshold (I1_TH), such as higher, turning off (140) a first voltage (U1) driving the first current (I1), such as by switching off a corresponding switch or switches for applying the first voltage (U1) to the output (15).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.