Voltage equalizer

A voltage equalizer includes voltage detectors that detect voltages of respective cells, switches, and a controller that repeatedly sets a lowest voltage among voltages detected by one of the voltage detectors to be a target voltage Vt1 or Vt2 in each of the battery packs, and that repeatedly turns...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Hirose Shinji, Yamamoto Satoshi, Makishi Wataru
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	A voltage equalizer includes voltage detectors that detect voltages of respective cells, switches, and a controller that repeatedly sets a lowest voltage among voltages detected by one of the voltage detectors to be a target voltage Vt1 or Vt2 in each of the battery packs, and that repeatedly turns on/off each of the switches such that the voltages of the cells other than the cell having the lowest voltage become the target voltage Vt1 or Vt2 in each of the battery packs, until the controller determines on the basis of the respective voltages detected by the voltage detectors that a cell balance control operation does not need to be performed.