CURRENT MEASURING APPARATUS, CURRENT MEASURING METHOD AND BATTERY PACK INCLUDING THE CURRENT MEASURING APPARATUS

Disclosed is a current measuring apparatus and method, and a battery pack including the current measuring apparatus. The current measuring apparatus includes: a switching circuit installed on the charging and discharging path; a current measuring unit having a shunt resistor installed on the chargin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHOI, Yang-Lim, LEE, Won-Tae
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TESTING
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Beschreibung
Zusammenfassung:	Disclosed is a current measuring apparatus and method, and a battery pack including the current measuring apparatus. The current measuring apparatus includes: a switching circuit installed on the charging and discharging path; a current measuring unit having a shunt resistor installed on the charging and discharging path and configured to output a current signal corresponding to a voltage across the shunt resistor; a voltage measuring unit configured to measure the voltage across the switching circuit; a temperature measuring unit configured to measure a temperature of the switching circuit; and a control unit. The control unit determines a first current value indicating a current flowing through the shunt resistor, based on the current signal. The control unit determines a second current value indicating a current flowing through the switching circuit, based on the measured voltage and the measured temperature. The control unit determines whether the shunt resistor is in a normal state, based on the first current value and the second current value.