{"id":129726,"date":"2018-02-22T05:31:44","date_gmt":"2018-02-22T05:31:44","guid":{"rendered":"https:\/\/\/convertisseur-de-courant-continu-avec-courant-de-repos-de-144-na\/"},"modified":"2018-02-22T05:31:44","modified_gmt":"2018-02-22T05:31:44","slug":"convertisseur-de-courant-continu-avec-courant-de-repos-de-144-na","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/convertisseur-de-courant-continu-avec-courant-de-repos-de-144-na\/","title":{"rendered":"Convertisseur de courant continu avec courant de repos de 144 nA"},"content":{"rendered":"

Ce convertisseur de courant continu collecte l\u2019\u00e9nergie produite par une cellule photovolta\u00efque ou un syst\u00e8me de r\u00e9cup\u00e9ration d\u2019\u00e9nergie vibratoire et la stocke dans une batterie rechargeable ou un condensateur. Son faible courant de repos de 144 nA permet au circuit de r\u00e9cup\u00e9ration d\u2019\u00eatre utilis\u00e9 dans un environnement peu \u00e9clair\u00e9 et au niveau d\u2019\u00e9nergie g\u00e9n\u00e9r\u00e9e mod\u00e9r\u00e9. Le R1800 peut \u00eatre utilis\u00e9 dans le d\u00e9veloppement d\u2019applications fonctionnant sans batterie, qui ne n\u00e9cessitent donc aucun remplacement ni rechargement. L\u2019application fonctionne tant qu\u2019il y a suffisamment de lumi\u00e8re ou de vibrations.<\/p>\n

Une certaine quantit\u00e9 d\u2019\u00e9nergie doit passer par le port d\u2019entr\u00e9e pour activer le convertisseur, qui peut ainsi transf\u00e9rer l\u2019\u00e9nergie vers le port de sortie. Lors de cette phrase, l\u2019\u00e9nergie transf\u00e9r\u00e9e est stock\u00e9e sur un condensateur ou une batterie situ\u00e9e en sortie de circuit jusqu\u2019\u00e0 ce que l\u2019\u00e9nergie restant \u00e0 l\u2019entr\u00e9e chute en-dessous d\u2019un certain seuil. Le convertisseur est d\u00e9sactiv\u00e9 et une nouvelle \u00e9nergie est collect\u00e9e \u00e0 l\u2019entr\u00e9e. Le processus se r\u00e9p\u00e8te et augmente le niveau d\u2019\u00e9nergie du condensateur ou de la batterie jusqu\u2019\u00e0 atteindre la tension de sortie voulue.<\/p>\n

Lorsque la tension d\u2019entr\u00e9e chute sous le niveau de tension de sortie, un circuit de protection contre le courant inverse emp\u00eache que le courant ne fasse le chemin sortie-entr\u00e9e d\u00e8s que le syst\u00e8me de r\u00e9cup\u00e9ration d\u2019\u00e9nergie ne fournit pas d\u2019\u00e9nergie. Le R1800 est disponible dans le package DFN (PLP) 2730-12.<\/p>\n

www.ricoh-europe.com<\/a>.<\/p>\n

Gestionnaire d\u2019alimentation USB type C <\/a><\/h3>\n

R\u00e9gulateurs de tension 60V adapt\u00e9s aux batteries automobiles 48V <\/a><\/h3>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

La soci\u00e9t\u00e9 japonaise Ricoh Electronic Devices Co., Ltd. annonce la commercialisation d\u2019un convertisseur de courant continu R1800. 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