{"id":1666,"date":"2018-05-29T21:57:47","date_gmt":"2018-05-29T18:57:47","guid":{"rendered":"http:\/\/racov.ro\/?p=1666"},"modified":"2018-06-09T13:02:39","modified_gmt":"2018-06-09T10:02:39","slug":"incarcare-android-fara-baterie","status":"publish","type":"post","link":"https:\/\/racov.ro\/index.php\/2018\/05\/29\/incarcare-android-fara-baterie\/","title":{"rendered":"\u00cenc\u0103rcare Android f\u0103r\u0103 baterie"},"content":{"rendered":"

Sau cum s\u0103 \u021bii permanent un telefon \u00een priz\u0103.<\/strong><\/p>\n

Un telefon sau o tablet\u0103 veche \u0219i p\u0103r\u0103sit\u0103 pot fi folosite cu mare succes pe post de gadget de birou pentru a afi\u0219a ora\/data\/orice alte informa\u021bii.
\n<\/em>Aplica\u021bii g\u0103se\u0219ti o gr\u0103mad\u0103 pe magazinul de joac\u0103 \ud83d\ude42 de la Google.
\n\u0218i eu am dezvoltat o aplica\u021bie fix pentru a\u0219a ceva, descris\u0103 aici<\/a>.<\/p>\n

Problema cu telefonul \u021binut permanent la \u00eenc\u0103rcat, e c\u0103 bateria se uzeaz\u0103 accelerat, se umfl\u0103, poate chiar s\u0103 fac\u0103 POC<\/strong>.
\nLa telefonul pe care \u00eel foloseam eu exact pe post de ceas cu termometru, dup\u0103 un an de stat \u00een priz\u0103, bateria s-a umflat a\u0219a de tare, c\u0103 a scos capacul din spate.
\nAsta e marfa de care vorbesc.
\n<\/p>\n

Am mai c\u0103utat pe net \u0219i am decis s\u0103 dezmembrez bateria \u0219i s\u0103 dau alimentare telefonului direct din USB.
\nPentru asta trebuie p\u0103strat\u0103 doar partea de reglare din capul bateriei, restul se arunc\u0103. Aten\u021bie c\u0103 bateria Li-ion con\u021bine substan\u021be foarte toxice. Nu inhala, nu pune pe piele.
\n<\/p>\n

Ciudat\u0103 compozi\u021bie\u00a0\ud83d\ude44
\n<\/p>\n

Circuitul de reglare din cap era capsulat \u00eentr-o r\u0103\u0219in\u0103 \u0219i l-am stricat, a\u0219a c\u0103 am dezmembrat alt\u0103 baterie\u00a0\ud83d\ude00 .<\/p>\n

\u00cen final, se d\u0103 tensiune de la USB pe bornele unde era conectat\u0103 bateria propriu-zis\u0103 \u0219i se ob\u021bine tensiune reglat\u0103 la contacte.
\nTensiunea de USB e prea mare pentru a fi aplicat\u0103 direct telefonului \u0219i \u00een plus, mai exist\u0103 \u0219i contactul pentru temperatur\u0103 care poate fi necesar pentru sistemul de operare.<\/p>\n

Tensiunea de USB la intrarea modulului
\n
\n\"\"<\/a><\/p>\n

\u0218i tensiunea de ie\u0219ire
\n
\n\"\"<\/a><\/p>\n

Totul minunat, am conectat marfa la telefon \u0219i chiar a mers…
\n\"\"<\/a><\/p>\n

\"\"<\/a><\/p>\n

Porc\u0103ria e c\u0103 dup\u0103 ce l-am scos din priz\u0103 \u0219i l-am asamblat
\n\"\"<\/a>
\nCu temperatur\u0103 cu tot, nu a mai pornit nici de-al …\u00a0\ud83d\udc7f .
\nParc\u0103 era \u021binut \u00eentr-o supra-sarcin\u0103 permanent\u0103 \u0219i intra \u00een protec\u021bie. Se bloca, nu mai d\u0103dea nimic afar\u0103. A mai pornit odat\u0103, habar n-am cum \u0219i iar a murit.<\/p>\n

Am trecut la solu\u021bia disperat\u0103 de a pune o diod\u0103 \u00een serie cu tensiunea de 5V de USB, s\u0103 cad\u0103 0,6V, s\u0103 ajung pe la 4,4V, numai bine.
\nAm g\u0103sit \u00een gunoaie o diod\u0103 ruseasc\u0103.
\n\"\"<\/a>
\nPe care am lipit-o chiar pe modulul meu. Nu am scos modulul, am zis c\u0103 poate p\u0103c\u0103lesc cumva Androidul cu el c\u00e2nd mi-o cere temperatura bateriei, dar nu a mai fost cazul. Nu d\u0103 eroare c\u0103 nu are temperatur\u0103 de la baterie. Deci \u00een gol 4,58V, promi\u021b\u0103tor.<\/p>\n

Dar \u00een func\u021bionare
\n\"\"<\/a>
\nDioda asta e a\u0219a de proast\u0103, are o rezisten\u021b\u0103 intern\u0103 a\u0219a de mare, c\u0103 \u00een sarcin\u0103 mai pic\u0103 \u00eenc\u0103 \u00eenc\u0103 un volt<\/strong>, pe l\u00e2ng\u0103 cei 0,6V normali ai jonc\u021biunii.<\/p>\n

Treaba e c\u0103 telefonul merge f\u0103r\u0103 probleme, chiar dac\u0103 arat\u0103 baterie desc\u0103rcat\u0103, mai precis 26% \ud83d\ude00 .
\n\"\"<\/a><\/p>\n

\u0218i instalarea final\u0103. O gaur\u0103 \u00een capac pentru cablul USB \u0219i o simpl\u0103 diod\u0103 \u00een serie au rezolvat problema. Poate la alte telefoane senzorul de temperatur\u0103 e obligatoriu, nu \u0219tiu, dar aici merge \u0219i f\u0103r\u0103.
\n\"\"<\/a><\/p>\n

\"\"<\/a><\/p>\n

Func\u021bioneaz\u0103 continuu de atunci \u0219i nu se \u00eenc\u0103lze\u0219te.
\nAlimentatorul\/\u00eenc\u0103rc\u0103torul are un condensator bunicel la ie\u0219ire, c\u0103 la un \u0219oc mic de tensiune telefonul nu se opre\u0219te. Dac\u0103 se \u00eentrerupe curentul mai mult de 3-4 secunde, pa, trebuie repornit cu m\u00e2na.<\/p>\n

Ah, mi-am dat seama…
\nCred c\u0103 \u021bi-e clar c\u0103 f\u0103r\u0103 baterie \u0219i cu \u00eenc\u0103rc\u0103torul cuplat, telefonul nu porne\u0219te, altfel despre ce naiba am mai vorbit.<\/p>\n","protected":false},"excerpt":{"rendered":"

Sau cum s\u0103 \u021bii permanent un telefon \u00een priz\u0103. Un telefon sau o tablet\u0103 veche \u0219i p\u0103r\u0103sit\u0103 pot fi folosite<\/p>\n","protected":false},"author":1,"featured_media":1669,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_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},"jetpack_post_was_ever_published":false},"categories":[2],"tags":[],"class_list":["post-1666","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-2"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/racov.ro\/wp-content\/uploads\/2018\/05\/feat-2.jpg?fit=700%2C350&ssl=1","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p75FkB-qS","jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/racov.ro\/index.php\/wp-json\/wp\/v2\/posts\/1666","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/racov.ro\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/racov.ro\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/racov.ro\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/racov.ro\/index.php\/wp-json\/wp\/v2\/comments?post=1666"}],"version-history":[{"count":9,"href":"https:\/\/racov.ro\/index.php\/wp-json\/wp\/v2\/posts\/1666\/revisions"}],"predecessor-version":[{"id":1679,"href":"https:\/\/racov.ro\/index.php\/wp-json\/wp\/v2\/posts\/1666\/revisions\/1679"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/racov.ro\/index.php\/wp-json\/wp\/v2\/media\/1669"}],"wp:attachment":[{"href":"https:\/\/racov.ro\/index.php\/wp-json\/wp\/v2\/media?parent=1666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/racov.ro\/index.php\/wp-json\/wp\/v2\/categories?post=1666"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/racov.ro\/index.php\/wp-json\/wp\/v2\/tags?post=1666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}