METHOD AND DEVICE FOR CHARGING AN ELECTRICAL ENERGY STORAGE ELEMENT, IN PARTICULAR AN ULTRACAPACITOR

The device according to the invention for charging a first electrical energy storage element (1), in particular an ultracapacitor, from a second electrical energy storage element (2), in particular a battery, is of the type of those comprising a reversible DC/DC converter (3) arranged between the fi...

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Bibliographische Detailangaben
1. Verfasser:	LEBOEUF, CEDRIC
Format:	Patent
Sprache:	eng ; fre ; ger
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 CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	The device according to the invention for charging a first electrical energy storage element (1), in particular an ultracapacitor, from a second electrical energy storage element (2), in particular a battery, is of the type of those comprising a reversible DC/DC converter (3) arranged between the first and second elements (1,2). In accordance with the invention, the device moreover comprises a stepdown voltage converter (4) arranged between the DC/DC converter (3) and the first element (1). Advantageously, the device comprises means controlled (11,12,23) so as to charge with a low current the first element (1) from the second element (2), in particular a battery in a poor state of charge, so as to allow the starting of an engine of a motor vehicle even from a battery in a poor state of charge.