Power Integrations<\/a> a annonc\u00e9 un nouveau dispositif 900\u00a0V au nitrure de gallium (GaN) qui vient \u00e9tendre sa famille de CI de commutation flyback InnoSwitch3. Ces nouveaux circuits int\u00e9gr\u00e9s, qui s\u2019appuient sur la technologie PowiGaN exclusive de la soci\u00e9t\u00e9, fournissent jusqu’\u00e0 100\u00a0W avec un rendement sup\u00e9rieur \u00e0 93%, ce qui \u00e9vite le recours \u00e0 des dissipateurs thermiques et permet de concevoir des applications tr\u00e8s compactes. Les conceptions \u00e0 base d\u2019InnoSwitch3 offrent \u00e9galement une efficacit\u00e9 exceptionnelle en pr\u00e9sence de charges l\u00e9g\u00e8res, ce qui les rend id\u00e9ales pour fournir une alimentation auxiliaire dans les v\u00e9hicules \u00e9lectriques en mode veille \u00e0 faible consommation. La famille InnoSwitch3-AQ, homologu\u00e9e AEC-Q100, est particuli\u00e8rement adapt\u00e9e aux v\u00e9hicules \u00e9lectriques (VE) \u00e0 bus 400\u00a0V, dans lesquels le commutateur PowiGaN 900\u00a0V offre plus de puissance et une marge de conception accrue – n\u00e9cessaire pour les syst\u00e8mes de remplacement de batterie 12\u00a0V – avec une efficacit\u00e9 sup\u00e9rieure \u00e0 celle de convertisseurs \u00e0 base de silicium.<\/p>\nLes fabricants de VE optimisent leur nouvelle g\u00e9n\u00e9ration de syst\u00e8mes 400\u00a0V<\/h3>\n
\u00ab\u00a0La tension de bus dominante pour les v\u00e9hicules \u00e9lectriques est le 400\u00a0V,\u00a0\u00bb d\u00e9clare Peter Vaughan, Directeur du D\u00e9veloppement de l’activit\u00e9 automobile chez Power Integrations. \u00ab\u00a0Les fabricants de VE optimisent leur nouvelle g\u00e9n\u00e9ration de syst\u00e8mes 400\u00a0V, et repensent les diff\u00e9rents \u00e9tages d’alimentation du v\u00e9hicule, comme le chargeur embarqu\u00e9. Le commutateur PowiGaN 900\u00a0V est extr\u00eamement int\u00e9ressant car il s’adapte facilement aux pics de bruit hautement inductifs souvent pr\u00e9sents dans les environnements automobiles. La puissance suppl\u00e9mentaire fournie par notre technologie GaN r\u00e9pond aux exigences croissantes des fabricants de VE en la mati\u00e8re. En outre, l’efficacit\u00e9 de la conversion d\u2019\u00e9nergie – m\u00eame dans les syst\u00e8mes auxiliaires – est importante pour \u00e9tendre l\u2019autonomie et am\u00e9liorer la gestion thermique.\u00a0\u00bb<\/p>\n
Dans le domaine industriel, les surcro\u00eets de puissance et de rendement sont extr\u00eamement avantageux pour les applications de type appareils m\u00e9nagers, moteurs triphas\u00e9s, et alimentations auxiliaires (PSU) de serveurs. Ces nouveaux dispositifs 900 V sont compatibles broche \u00e0 broche avec les dispositifs InnoSwitch3-EP 725 V et 750 V existants, tout en offrant une marge de s\u00e9curit\u00e9 accrue, ce qui est id\u00e9al dans les r\u00e9gions o\u00f9 les tensions de ligne sont instables. \u00ab\u00a0Notre capacit\u00e9 \u00e0 fournir des dispositifs GaN supportant jusqu’\u00e0 900\u00a0V d\u00e9montre la fiabilit\u00e9 et la robustesse de notre technologie PowiGaN,\u00a0\u00bb a d\u00e9clar\u00e9 Silvestro Fimiani, Directeur Senior Marketing Produits chez Power Integrations.<\/p>\n
Optimiser l’efficacit\u00e9 tout en \u00e9liminant le besoin d’optocoupleurs<\/h3>\n
Les nouveaux CI commutateurs flyback CV\/CC hors ligne InnoSwitch3-EP et InnoSwitch3-AQ 900\u00a0V s\u2019appuient sur un redressement synchrone, et un contr\u00f4leur flyback \u00e0 commutation en vall\u00e9e en mode conduction discontinue (DCM) et en mode conduction continue (CCM). La technologie de communication FluxLink permet au bo\u00eetier du CI de franchir la barri\u00e8re d’isolation, optimisant ainsi l’efficacit\u00e9, tout en \u00e9liminant le besoin d’optocoupleurs. La technologie PowiGaN permet aux circuits int\u00e9gr\u00e9s InnoSwitch3-EP de fournir jusqu’\u00e0 100\u00a0V (230\u00a0V alternatif [VAC] plus ou moins 15%) sans dissipateur thermique. Les dispositifs InnoSwitch3-EP int\u00e8grent de multiples fonctions de protection, notamment contre les surtensions et les sous-tensions de ligne, les surtensions et surintensit\u00e9s en sortie, et disposent aussi d\u2019une fonction de coupure en cas de surchauffe. Ces dispositifs sont disponibles avec plusieurs options de puissance standard et de puissance cr\u00eate. Les dispositifs InnoSwitch3-AQ pour l’automobile peuvent \u00e9galement fournir 100\u00a0W \u00e0 partir d’un bus 400\u00a0V, et offrent des performances et des caract\u00e9ristiques de protection similaires \u00e0 celles des circuits int\u00e9gr\u00e9s InnoSwitch3-AQ au carbure de silicium (SiC) 1\u00a0700\u00a0V utilis\u00e9s dans les syst\u00e8mes EV 800\u00a0V.<\/p>\n
www.power.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Les nouveaux circuits int\u00e9gr\u00e9s PowiGaN InnoSwitch propos\u00e9s par Power Integrations sont destin\u00e9s aux applications industrielles et aux alimentations automobiles de syst\u00e8mes 400 V jusqu\u2019\u00e0 100 W Le sp\u00e9cialiste des circuits int\u00e9gr\u00e9s haute tension pour la conversion d’\u00e9nergie \u00e0 haut rendement Power Integrations a annonc\u00e9 un nouveau dispositif 900\u00a0V au nitrure de gallium (GaN) qui […]<\/p>\n","protected":false},"author":36,"featured_media":417527,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[891,1164],"domains":[47],"ppma_author":[1154],"class_list":["post-417526","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","tag-automotive-fr","tag-composants-de-puissance","domains-electronique-eci"],"acf":[],"yoast_head":"
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