{"id":228706,"date":"2013-12-11T23:00:00","date_gmt":"2013-12-11T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/circuit-dalimentation-et-de-charge-de-batterie-a-recuperation-denergie\/"},"modified":"2013-12-11T23:00:00","modified_gmt":"2013-12-11T23:00:00","slug":"circuit-dalimentation-et-de-charge-de-batterie-a-recuperation-denergie","status":"publish","type":"post","link":"https:\/\/test.ecinews.fr\/fr\/circuit-dalimentation-et-de-charge-de-batterie-a-recuperation-denergie\/","title":{"rendered":"Circuit d\u2019alimentation et de charge de batterie \u00e0 r\u00e9cup\u00e9ration d\u2019\u00e9nergie"},"content":{"rendered":"<p>Ce composant convient aux applications dont les besoins &eacute;nerg&eacute;tiques varient entre quelques microwatts et quelques milliwatts. Il est &eacute;galement bien adapt&eacute; aux applications grand public et industrielles d&eacute;ploy&eacute;es en environnements int&eacute;rieur et ext&eacute;rieur, et qui ont recours &agrave; l&rsquo;&eacute;nergie solaire ou thermique. En plus de la r&eacute;cup&eacute;ration d&rsquo;&eacute;nergie et de son ultra-basse consommation, il propose &eacute;galement diff&eacute;rentes fonctions qui facilitent la miniaturisation et r&eacute;duisent le co&ucirc;t en composants.<br \/>\nDes r&eacute;gulateurs fonctionnant &agrave; la fois sous 1,8 V et 3,3 V sont disponibles pour alimenter directement un microcontr&ocirc;leur ou un &eacute;metteur sans fil associ&eacute;, sans utiliser de composants suppl&eacute;mentaires. Par ailleurs, la technologie de recherche du point de puissance maximum MPPT optimise en permanence la r&eacute;cup&eacute;ration d&rsquo;&eacute;nergie. Cette fonction peut &eacute;galement &ecirc;tre d&eacute;sactiv&eacute;e si n&eacute;cessaire. Le circuit de charge accepte de nombreux types de batteries tels que lithium-ion et lithium-polym&egrave;re (LiPo), lithium &agrave; &eacute;tat solide en couches minces, nickel-hydrure m&eacute;tallique (NiMH) et nickel-cadmium (NiCd), ainsi que les super-condensateurs.<br \/>\nLe convertisseur buck-boost int&eacute;gr&eacute; permet de connecter le circuit &agrave; un g&eacute;n&eacute;rateur thermo&eacute;lectrique ou &agrave; des modules de r&eacute;cup&eacute;ration d&rsquo;&eacute;nergie solaire int&eacute;rieur\/ext&eacute;rieur fonctionnant dans une large plage de tension d&rsquo;entr&eacute;e comprise entre 180 mV et 8 V. Le rendement op&eacute;rationnel moyen de 90 % assure la recharge rapide d&rsquo;une batterie, m&ecirc;me sous une faible tension d&rsquo;alimentation d&rsquo;entr&eacute;e, tandis que la pr&eacute;cision de la technologie MPPT, de l&rsquo;ordre de 90 % minimum, maximise l&rsquo;extraction d&rsquo;&eacute;nergie &agrave; partir de sources solaires ou thermo&eacute;lectriques. En outre, le r&eacute;gulateur de charge de batterie int&eacute;gr&eacute; utilise des seuils de sous-tension et de fin de charge extr&ecirc;mement pr&eacute;cis. De plus, il fournit une logique de commande de s&eacute;curit&eacute; pour &eacute;viter toute d&eacute;charge excessive et prolonger l&rsquo;autonomie de la batterie.<br \/>\n&quot;La r&eacute;cup&eacute;ration d&rsquo;&eacute;nergie pr&eacute;sente des avantages sur le plan environnemental et permet de r&eacute;duire le co&ucirc;t de propri&eacute;t&eacute; des &eacute;quipements. Cette technologie est de plus en plus utilis&eacute;e dans la mesure o&ugrave; la conversion d&rsquo;&eacute;nergie gagne en efficacit&eacute; et o&ugrave; les exigences &eacute;nerg&eacute;tiques des syst&egrave;mes typiques sont en baisse&quot;, a d&eacute;clar&eacute; Matteo Lo Presti, group vice-president et directeur g&eacute;n&eacute;ral de la division Industrial and Power Conversion de STMicroelectronics. &quot;L&rsquo;exceptionnelle efficacit&eacute; op&eacute;rationnelle et sur le plan de la r&eacute;cup&eacute;ration d&rsquo;&eacute;nergie du circuit SPV1050, combin&eacute;e &agrave; une flexibilit&eacute; in&eacute;gal&eacute;e et l&rsquo;int&eacute;gration de nombreuses fonctionnalit&eacute;s, permet aux ing&eacute;nieurs de concr&eacute;tiser de nombreuses opportunit&eacute;s sur les march&eacute;s industriels et grand public.&quot;<br \/>\nActuellement &eacute;chantillonn&eacute;, avec une production en volume pr&eacute;vue au 1er trimestre 2014, ce circuit est propos&eacute; en bo&icirc;tier QFN 20 contacts de 3 x 3 x 1 mm ou sous forme de tranches test&eacute;es et non d&eacute;coup&eacute;es WLCSP &agrave; 20 bosses.<\/p>\n<\/p>\n<p><a href=\"http:\/\/www.st.com\" target=\"_blank\" title=\"www.st.com\" rel=\"noopener\">www.st.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>La r\u00e9cup\u00e9ration de lumi\u00e8re ambiante ou d\u2019\u00e9nergie thermique pour alimenter des petits appareils \u00e9lectroniques permet de prot\u00e9ger l\u2019environnement en r\u00e9duisant les \u00e9missions de CO2. Cette approche ouvre ainsi la voie \u00e0 l\u2019Internet des Objets. Dans cette optique, STMicroelectronics propose son circuit SPV1050 qui int\u00e8gre toutes les fonctions n\u00e9cessaires pour alimenter des circuits \u00e9lectroniques et recharger des batteries en utilisant une pile solaire ou un g\u00e9n\u00e9rateur thermo\u00e9lectrique (TEG).<\/p>\n","protected":false},"author":22,"featured_media":228707,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1149],"class_list":["post-228706","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Circuit d\u2019alimentation et de charge de batterie \u00e0 r\u00e9cup\u00e9ra...<\/title>\n<meta name=\"description\" content=\"La r\u00e9cup\u00e9ration de lumi\u00e8re ambiante ou d\u2019\u00e9nergie thermique pour alimenter des petits appareils \u00e9lectroniques permet de prot\u00e9ger l\u2019environnement en...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/test.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/228706\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Circuit d\u2019alimentation et de charge de batterie \u00e0 r\u00e9cup\u00e9ration d\u2019\u00e9nergie\" \/>\n<meta property=\"og:description\" content=\"La r\u00e9cup\u00e9ration de lumi\u00e8re ambiante ou d\u2019\u00e9nergie thermique pour alimenter des petits appareils \u00e9lectroniques permet de prot\u00e9ger l\u2019environnement en r\u00e9duisant les \u00e9missions de CO2. Cette approche ouvre ainsi la voie \u00e0 l\u2019Internet des Objets. Dans cette optique, STMicroelectronics propose son circuit SPV1050 qui int\u00e8gre toutes les fonctions n\u00e9cessaires pour alimenter des circuits \u00e9lectroniques et recharger des batteries en utilisant une pile solaire ou un g\u00e9n\u00e9rateur thermo\u00e9lectrique (TEG).\" \/>\n<meta property=\"og:url\" content=\"https:\/\/test.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/228706\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2013-12-11T23:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/test.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci6695_st_ultra_low_power_energy_harvester.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1772\" \/>\n\t<meta property=\"og:image:height\" content=\"1240\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"eeNews Europe\" \/>\n<meta name=\"twitter:card\" 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