Protective circuit for a battery pack

The protective circuit has predetermined number of single cells, which are successively switched in two cell rows (A,B,C,D), which lie parallel to each other. A phase current (Ia,Ib,Ic,Id) flowing while loading the battery pack in one cell row is compared with the phase current flowing in another ce...

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Bibliographische Detailangaben
Hauptverfasser:	GAUL HENRIK, SCHURR MARTIN
Format:	Patent
Sprache:	eng ; pol
Schlagworte:	BASIC ELECTRIC ELEMENTS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS EMERGENCY PROTECTIVE DEVICES GENERATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY RELAYS SELECTORS TESTING
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Beschreibung
Zusammenfassung:	The protective circuit has predetermined number of single cells, which are successively switched in two cell rows (A,B,C,D), which lie parallel to each other. A phase current (Ia,Ib,Ic,Id) flowing while loading the battery pack in one cell row is compared with the phase current flowing in another cell row, where a signal is generated when no plausible deviation of the phase currents is found. The signal is generated when difference of the phase currentsexceed a predetermined value (IG). The non-plausible deviation is derived from a ratio of the phase currents to each other.