Batteriezellenimpedanzmessverfahren und Vorrichtung
Anmelder: Datang NXP Semiconductors Co., Ltd., NXP B.V. 🇨🇳
Details
- Veröffentlichungs-Nr.
- EP2520944
- Aktenzeichen
- EP12166398
- Anmeldetag
- 2. Mai 2012
- Veröffentlichung
- 28. Juni 2023
- Erteilung
- 28. Juni 2023
- Rechtsraum
- EP
- IPC
- G01R31/36H02J7/00H01M10/44
Abstract
A circuit arrangement for determining impedance of a battery cell is provided. A first circuit is configured to generate sine and cosine waveforms having N sample values per period. A second circuit is coupled to an output of the first circuit and is configured to input a current into the cell in response to the sample values of the cosine waveform. The current has an amplitude proportional to the sample values of the cosine waveform. A third circuit is coupled to the cell and configured to sample voltage levels across the cell resulting from the current being input into the cell. A fourth circuit is coupled to an output of the third circuit and is configured to separate each voltage level sampled by the third circuit into real and imaginary components.
Anmelder
- Firmen
- Datang NXP Semiconductors Co., Ltd.
NXP B.V. - Land
- 🇨🇳 China
Niederländischer Halbleiterhersteller mit Sitz in Eindhoven. Entwickelt Chips und Halbleiterlösungen für Automobiltechnik, Kommunikation, Sicherheit sowie industrielle Anwendungen.
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