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1. (WO2014202279) CIRCUIT ARRANGEMENT AND ENERGY STORE SYSTEM

Pub. No.:    WO/2014/202279    International Application No.:    PCT/EP2014/059511
Publication Date: Thu Dec 25 00:59:59 CET 2014 International Filing Date: Sat May 10 01:59:59 CEST 2014
IPC: H02H 3/087
H02H 3/10
Applicants: BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT
Inventors: LOPEZ DE ARROYABE, Jose
Title: CIRCUIT ARRANGEMENT AND ENERGY STORE SYSTEM
Abstract:
The invention relates to a circuit arrangement for operating an energy store of an electric and/or hybrid vehicle, said circuit arrangement having an analogue monitoring circuit (30). The analogue monitoring circuit (30) is designed and arranged to detect a measurement signal that is representative of a current flowing through the energy store and, depending on the measurement signal, to generate a predetermined first control signal. The circuit arrangement further comprises a semiconductor switching element (50) which is designed to electrically couple, in a first switching state, the energy store to an electrical energy network (25), and in a second switching state, to electrically decouple the energy store from the electrical energy network (25). The semiconductor switching element (50) has a control terminal that is coupled by signalling technology to an output (37) of the monitoring circuit (30), and the switching state of the semiconductor switching element (50) is adjustable depending on the first control signal.