{"id":180430,"date":"2017-03-08T01:00:00","date_gmt":"2017-03-08T01:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/dispositif-de-protection-defibrillation-et-anti-esd\/"},"modified":"2017-03-08T01:00:00","modified_gmt":"2017-03-08T01:00:00","slug":"dispositif-de-protection-defibrillation-et-anti-esd","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/dispositif-de-protection-defibrillation-et-anti-esd\/","title":{"rendered":"Dispositif de protection d\u00e9fibrillation et anti-ESD"},"content":{"rendered":"<p>Les concepteurs de d\u00e9fibrillateurs et de moniteurs ECG font face \u00e0 un d\u00e9fi, car leurs amplificateurs d&rsquo;entr\u00e9e ECG doivent supporter les impulsions haute-tension inh\u00e9rentes \u00e0 la r\u00e9animation cardiaque. Ces impulsions peuvent facilement endommager les circuits \u00e9lectroniques sensibles qui doivent capturer des signaux cardiaques de quelques millivolts. Eviter ces dommages a n\u00e9cessit\u00e9 une approche multi-composants \u00e0 trois niveaux, combinant un tube \u00e0 d\u00e9charge de gaz GDT et\/ou un suppresseur de tensions transitoires TVS par canal, ainsi que des diodes de protection anti-ESD. De plus, le courant de fuite, param\u00e8tre critique, peut \u00eatre relativement \u00e9lev\u00e9, autour de 1 \u00e0 2 nA.<\/p>\n<p>Ce dispositif de protection d\u00e9fibrillation \u00e0 quatre canaux fait appel \u00e0 une technologie de semiconducteurs \u00e9volu\u00e9e pour absorber et rediriger sans risque ces impulsions haute-\u00e9nergie loin des circuits sensibles. Robuste, il n\u2019a besoin que de deux paires de r\u00e9sistances externes pour chaque canal, pour faciliter la conception, r\u00e9duire l\u2019encombrement global et diminuer le courant de fuite. Il remplace les tubes GDT et les suppresseurs TVS au niveau du primaire, ainsi que les diodes ESD au secondaire, qui constituent la solution conventionnelle de protection indispensable des circuits. En outre, il peut supporter sans probl\u00e8me plus de 100.000 impulsions de d\u00e9fibrillation (5 kV), tout en maintenant un courant de fuite sous les 10 pA, soit 100 fois moins qu\u2019une approche \u00e0 base GDT\/TVS.<\/p>\n<hr \/>\n<p>Encapsul\u00e9 dans un petit bo\u00eetier \u00b5MAX de 3 x 5 mm, ce circuit remplace avantageusement les solutions de protection ESD conventionnelles en gagnant plus de 75% de place. Il est pr\u00e9vu pour fonctionner dans la gamme de temp\u00e9rature allant de 0 \u00e0 70 \u00b0C.<br \/>\nLe kit MAX30034EVKIT# associ\u00e9 est propos\u00e9 pour faciliter son \u00e9valuation.<\/p>\n<p>\u00ab\u00a0Les utilisateurs ont besoin de composants innovants, \u00e0 vocation tr\u00e8s cibl\u00e9e, comme celui-ci,\u00a0\u00bb affirme Andrew Baker, Directeur Industrie et Sant\u00e9, chez Maxim Integrated. \u00ab\u00a0Ce composant apporte une solution radicalement nouvelle au tr\u00e8s vieux challenge que pose la protection des dispositifs m\u00e9dicaux contre les impulsions de d\u00e9fibrillation.\u00a0\u00bb<\/p>\n<p><a href=\"https:\/\/www.maximintegrated.com\/en\/products\/power\/protection-control\/protection-ics\/MAX30034.html\" target=\"_blank\" rel=\"noopener\">www.maximintegrated.com\/MAX30034<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ciblant les \u00e9quipements m\u00e9dicaux tels que les d\u00e9fibrillateurs, les syst\u00e8mes de diagnostic et de surveillance d\u2019\u00e9lectrocardiogramme (ECG), le dispositif de protection d\u00e9fibrillation MAX30034 de Maxim Integrated Products prot\u00e8ge contre les impulsions de d\u00e9fibrillation et les d\u00e9charges \u00e9lectrostatiques. De faible empreinte, il simplifie la conception et les nomenclatures, tous en am\u00e9liorant sensiblement les performances.<\/p>\n","protected":false},"author":9,"featured_media":180431,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[904],"domains":[47],"ppma_author":[1141],"class_list":["post-180430","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","tag-medicalelectronics-fr","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Dispositif de protection d\u00e9fibrillation et anti-ESD ...<\/title>\n<meta name=\"description\" content=\"Ciblant les \u00e9quipements m\u00e9dicaux tels que les d\u00e9fibrillateurs, les syst\u00e8mes de diagnostic et de surveillance d\u2019\u00e9lectrocardiogramme (ECG), le...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/180430\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dispositif de protection d\u00e9fibrillation et anti-ESD\" \/>\n<meta property=\"og:description\" content=\"Ciblant les \u00e9quipements m\u00e9dicaux tels que les d\u00e9fibrillateurs, les syst\u00e8mes de diagnostic et de surveillance d\u2019\u00e9lectrocardiogramme (ECG), le dispositif de protection d\u00e9fibrillation MAX30034 de Maxim Integrated Products prot\u00e8ge contre les impulsions de d\u00e9fibrillation et les d\u00e9charges \u00e9lectrostatiques. 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