BATTERY MONITORING DEVICE, INTEGRATED CIRCUIT, AND BATTERY MONITORING SYSTEM

A battery monitoring device (100) includes a first reference resistor (103) disposed in a path (P2) different from a path (P1) of current flowing from a battery to a load (102); a transistor (104) for passing current from the battery to the first reference resistor (103); and an integrated circuit (...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUKAWA, Kazuo, OKADA, Yu, KOBAYASHI, Hitoshi, MISAKU, Takeshi, MAKABE, Yoshikazu, FUJII, Keiichi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY TESTING
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Beschreibung
Zusammenfassung:	A battery monitoring device (100) includes a first reference resistor (103) disposed in a path (P2) different from a path (P1) of current flowing from a battery to a load (102); a transistor (104) for passing current from the battery to the first reference resistor (103); and an integrated circuit (105). The integrated circuit (105) includes: a current measurement unit (112) that measures a first current flowing through the first reference resistor (103); a voltage measurement unit (115) that measures a first voltage of the battery (B); and a first calculation unit (118) that calculates an AC impedance of the battery based on the first current measured and the first voltage measured.