Elektronische Schaltung zur Messung von Strömen Während des Ladens und Entladens einer Sekundärbatterie

Details

Veröffentlichungs-Nr.

EP3190422

Aktenzeichen

EP16200738

Anmeldetag

25. November 2016

Veröffentlichung

17. Oktober 2018

Erteilung

17. Oktober 2018

Rechtsraum

EP

IPC

G01R19/00H02J7/00

Abstract

An electronic circuit and method for measuring currents during charging and discharging of a secondary battery (307) are disclosed having a secondary battery (307), at least one shunt (312, 313) for determining the electrical current during charging and/or discharging of the secondary battery (307) by measuring the voltage drop over the shunt (312, 313), a switchable electrical load (305), two connectors (302 and 303) for connecting a preferably switchable power supply (304) to the electronic circuit (301) for charging the secondary battery (307) and a voltage measuring device (310). A first shunt (313) is connected in series between the electrical load (305) and the secondary battery (307), and a second shunt (312) is connected in series between one of the two connectors (303) for connecting the power supply (304) and the secondary battery (307), wherein the first shunt (313) and the second shunt (312) are connected to the same one of the two battery terminals of the secondary battery (307), and in that the voltage measuring device (310) comprises only one voltage tapping connected to the electrical conduit between the first shunt (313) and the switchable electrical load (305) and measuring the electrical potential with respect to ground, as defined by the ground potential of the voltage measuring device (310).

Anmelder

Firma

Braun GmbH

Land

🇩🇪 Deutschland

Fachgebiete