Charger for rechargeable batteries

A battery charger for charging rechargeable batteries and/or battery packs is disclosed. Preferably the charger can apply two modes of charging a battery. In a normal charging mode a battery is charged to full capacity at a low rate. In a boost charging mode the battery is charged very rapidly and p...

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Bibliographische Detailangaben
Hauptverfasser:	NOTTEN PETRUS HENRICUS L, VAN BEEK JOHANN REINER GODEFRIDUS C.M
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER 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 battery charger for charging rechargeable batteries and/or battery packs is disclosed. Preferably the charger can apply two modes of charging a battery. In a normal charging mode a battery is charged to full capacity at a low rate. In a boost charging mode the battery is charged very rapidly and preferably only to a certain degree, such as 75% of its maximum capacity. The boost charging mode makes it possible to provide some charge to the battery when the time available for charging is limited. The boost charging method is based on a very high initial charging current (Iinit) The initial current (Iinit) is such that a predetermined maximum charging voltage (Vmax) is reached almost immediately. The charging current is then decreased in such a way that the charging voltage (Vcharge) is maintained substantially constant at the maximum charging voltage (Vmax).