{"id":923798,"date":"2012-03-23T14:46:00","date_gmt":"2012-03-23T14:46:00","guid":{"rendered":"http:\/\/sindikat.bloguje.sk\/923798-vymena-7805-za-lm2575hvt-5.php"},"modified":"2012-05-26T21:43:26","modified_gmt":"2012-05-26T21:43:26","slug":"923798-vymena-7805-za-lm2575hvt-5-php","status":"publish","type":"post","link":"https:\/\/sindik.at\/?p=923798","title":{"rendered":"V\u00fdmena 7805 za LM2575HVT-5"},"content":{"rendered":"

Pomaly si d\u00e1vam dokopy svojho Gum\u00e1ka a vadilo mi, \u017ee 7805 hreje ako o \u017eivot. Preto som sa ho rozhodol vymeni\u0165.<\/p>\n

<\/p>\n

S\u00fa\u010diastky som objedn\u00e1val z PS Electonic, preto\u017ee som potreboval LM1889N, ktor\u00e9 dl\u017e\u00edm Ikonovi. Preto som poh\u013eadal aj 5V stabiliz\u00e1tory a s\u00edce mali aj lacnej\u0161ie druhy, ale nemali ich na sklade a tak som objednal LM2575HVT-5. Po objedn\u00e1vke sa samozrejme dostupnos\u0165 zmenila a musel som \u010daka\u0165 10 dn\u00ed na naskladnenie a s\u00fa\u010diastky mi dorazili a\u017e cez Forever.<\/p>\n

\"7805<\/p>\n

N\u00e1hrada je vcelku jednoduch\u00e1. Zapojenie je zobrat\u00e9 z datasheetu. 2575 m\u00e1 s\u00edce a\u017e 5 no\u017ei\u010diek, ale vstup (pin 1), zem (pin 3) a v\u00fdstup (pin 4) id\u00fa zapoji\u0165 na p\u00f4vodn\u00e9 miesta 7805. Pin \u010d. 5 je potrebn\u00e9 tie\u017e uzemni\u0165 a na to je vhodn\u00fd kondenz\u00e1tor hne\u010f pri reproduktore a pin \u010d.2 necha\u0165 „v lufte“ a prisp\u00e1jkova\u0165 schotkyho di\u00f3du. Probl\u00e9m je jedine s tlmivkou, preto\u017ee na t\u00fa nie je \u017eiadne miesto. Ja som ju obalil izolepou a prisp\u00e1jkoval na dr\u00f4tiky. P\u00f4vodne som ju pl\u00e1noval aj nejak prichyti\u0165 k doske, ale dr\u00f4tiky to dr\u017eia dos\u0165 stuha, tak to u\u017e nech\u00e1m tak.<\/p>\n

<\/p>\n

\u010ealej treba vymeni\u0165 filtrovacie kondenz\u00e1tory za v\u00e4\u010d\u0161ie. V issue2 sa nach\u00e1dzaj\u00fa pri nap\u00e1jacom konektore a hodnoty s\u00fa vidie\u0165 na obr\u00e1zku.<\/p>\n

<\/p>\n

Zapojenie fungovalo na prv\u00fd \u0161up. Vstupn\u00e9 nap\u00e4tie som nameral 13.2V, v\u00fdstupn\u00e9 4.97V a chladi\u010d sa zohreje takmer nebadate\u013ene. Tak\u017ee u\u017e sa neboj\u00edm, \u017ee sa mi nie\u010do sp\u00e1li, ke\u010f si zmontujem Gum\u00e1ka. V pl\u00e1ne m\u00e1m n\u00e1hradu aj v Delte od Creamda, kde je issue6A.<\/p>\n

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

Pomaly si d\u00e1vam dokopy svojho Gum\u00e1ka a vadilo mi, \u017ee 7805 hreje ako o \u017eivot. Preto som sa ho rozhodol vymeni\u0165.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[5],"tags":[],"class_list":["post-923798","post","type-post","status-publish","format-standard","hentry","category-tema-2-hardware-php"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5aqy8-3SjY","jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/sindik.at\/index.php?rest_route=\/wp\/v2\/posts\/923798","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sindik.at\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sindik.at\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sindik.at\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sindik.at\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=923798"}],"version-history":[{"count":2,"href":"https:\/\/sindik.at\/index.php?rest_route=\/wp\/v2\/posts\/923798\/revisions"}],"predecessor-version":[{"id":929421,"href":"https:\/\/sindik.at\/index.php?rest_route=\/wp\/v2\/posts\/923798\/revisions\/929421"}],"wp:attachment":[{"href":"https:\/\/sindik.at\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=923798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sindik.at\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=923798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sindik.at\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=923798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}