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  1. #1
    Registered User
    Join Date: Mar:2009
    Location: Plovdiv
    Posts: 37

    Ñòàáèëèçàòîð íà íàïðåæåíèå 12V

    Òðÿáâà ìè ñòàáèëèçàòîð çà àâòîìîáèë íà 12V/2A. Ùå âêëþ÷âàì ìåäèÿ ïëåúð ñ âãðàäåí õàðä äèñê. Ïëåàð÷åòî èìà àäàïòîð 220 êúì 12V/2A
    íî íÿìà âðúçêà çà çàïàëêàòà íà êîëàòà è ñëåäîâàòåëíî ñè ìèñëÿ ,÷å íÿìà âãðàäåíà çàùèòà è ñå ïðèòåñíÿâàì äà íå áè äà ãî èçïúðæà ïðè ïàëåíå è ãàñåíå íà àâòîìîáèëà.

  2. #2
    Awesome swetoslawswe's Avatar
    Join Date: Dec:2008
    Location: Íÿêúäå òàì...
    Posts: 261
    7812
     ìàãàçèíèòå çà ðàäèî÷àñòè.
    Ñõåìàòà çà ñâúðçâàíå å åëåìåíòàðíà, ïèòàé Ãîøî...
    Ïîçíàíèåòî ðàæäà íàóêà, íåâåæåñòâîòî- ðåëèãèÿ.

  3. #3
    Unregistered geoton4's Avatar
    Join Date: May:2007
    Location: Ðàäîâåö
    Posts: 1,216
    7812 - 2À?!

  4. #4
    Awesome swetoslawswe's Avatar
    Join Date: Dec:2008
    Location: Íÿêúäå òàì...
    Posts: 261
    Ìèñëÿ, ÷å çà íÿêîëêî ñåêóíäè, êîëêîòî òðàå ñòàðòèðàíåòî íà àâòîìîáèëà, ùå èçäúðæè...

    Ïî ïðèíöèï å äî 1À, êàòî ìó ñå ñëîæè ðàäèàòîð÷å ùå å äîáðå.

    Çà ïî-âèñîêè ìîùíîñòè íå ñå ñåùàì òîëêîâà ëåñíî èçïúëíåíèå.
    Ïîçíàíèåòî ðàæäà íàóêà, íåâåæåñòâîòî- ðåëèãèÿ.

  5. #5
    Registered User shri's Avatar
    Join Date: Feb:2010
    Location: Âàðíà
    Posts: 599
    LM2576 äî 3À å ñ ðàäèàòîð ùå ñòàíå, å ùå òðÿáâàò 5 ÷àðêà îêîëî íåÿ.

  6. #6
    Registered User nickarsow's Avatar
    Join Date: Apr:2009
    Location: Ñìîëÿí
    Posts: 1,849
    Åeee, íå îáåçêóðàæàâàéòå ÷îâåêà äå. Èìà 12-êè è çà 3À - http://uk.farnell.com/fairchild-semi...0-3/dp/1013838 . Äîðè ìèñëÿ, ÷å â Êîìåò èìàò .... ïîíå èìàõà ïðåäè 2 ìåñåöà. Ïðîáëåìà ñ 12-êèòå å äðóãàäå. Òÿ ðàáîòè ïðè ìèíèìàëíà ðàçëèêà ìåæäó Uin - Uout > 2.2V !!!!! Òîåñò 12-êàòà ùå "ïðîðàáîòè" ïðè íàïðåæåíèå > 14.2V.
     ñëó÷àÿ òðÿáâà äà ñå ïîäõîäè èëè êàêòî å íàïèñàë shri èëè ñ LDO 12-êà, òîåñò 12-êà ñ ìàëúê ïàä íà íàïðåæåíèå ìåæäó âõîäà è èçõîäà....ïðèìåðíî LT1085xx-12. Ìèñëÿ, ÷å ìîãàò äà ñå íàìåðÿò â ÁÃ.
    ÍÅÌÀ ÒÀÊÀÂÀ ÄÚÐÆÀÂÀ
    Athlon II X2 240 / GB MA785GMT-UD2H / Kingston 2x1GB DDRIII 1066 / WD Black 500GB + WD Black 250GB / LianLi PC-V351 / Enermax Pro 82+ 625W / EIZO FlexScan L768 / APC CS650VA

  7. #7
    GeForce Ultra Xtreme GT zizirixo's Avatar
    Join Date: May:2004
    Location: Ñîôèÿ
    Posts: 1,060
    Ìîæå ïàê ñ 7812, íî ñ äîïúëíèòåëíè òðàíçèñòîðè 2N3055 èëè ÊÄ503.
    | ãð. Ñîôèÿ | çà êîíòàêò ËÑ |
    Dell CoftiFlex | Intel i5 3570 | 2x8GB DDR3 | 240GB SSD + 500GB HDD | RX580 4GB | Powered by 240V and a lot of coffee |

  8. #8
    Registered User nickarsow's Avatar
    Join Date: Apr:2009
    Location: Ñìîëÿí
    Posts: 1,849
    Quote Originally Posted by zizirixo View Post
    Ìîæå ïàê ñ 7812, íî ñ äîïúëíèòåëíè òðàíçèñòîðè 2N3055 èëè ÊÄ503.
    Íöú, íå ìîæå. Ïðè "ðàçøèðÿâàíå" íà 12-êàòà ñ ìîùåí PNP òðàíçèñòîð, ìèíèìàëíèÿ ïàä ìåæäó âõîäà è èçõîäà ñòàâà îùå ïî-ãîëÿì.
    ÍÅÌÀ ÒÀÊÀÂÀ ÄÚÐÆÀÂÀ
    Athlon II X2 240 / GB MA785GMT-UD2H / Kingston 2x1GB DDRIII 1066 / WD Black 500GB + WD Black 250GB / LianLi PC-V351 / Enermax Pro 82+ 625W / EIZO FlexScan L768 / APC CS650VA

  9. #9
    Registered User vARIEC's Avatar
    Join Date: Sep:2005
    Location: Ñîôèÿ
    Posts: 2,781
    Quote Originally Posted by bogi25 View Post
    Òðÿáâà ìè ñòàáèëèçàòîð çà àâòîìîáèë íà 12V/2A. Ùå âêëþ÷âàì ìåäèÿ ïëåúð ñ âãðàäåí õàðä äèñê. Ïëåàð÷åòî èìà àäàïòîð 220 êúì 12V/2A
    íî íÿìà âðúçêà çà çàïàëêàòà íà êîëàòà è ñëåäîâàòåëíî ñè ìèñëÿ ,÷å íÿìà âãðàäåíà çàùèòà è ñå ïðèòåñíÿâàì äà íå áè äà ãî èçïúðæà ïðè ïàëåíå è ãàñåíå íà àâòîìîáèëà.
    Êàêâî ñòàâà ïðè ïàëåíå è ãàñåíå? Àêóìóëàòîðúò íà êîëàòà å èäåàëåí ôèëòúð è íå òðÿáâà äà ñå î÷àêâàò íÿêàêâè ïèêîâå. Åäèíñòâåíîòî ïðèòåñíåíèå ñà ìàêñèìàëíèòå 14.2v, äî êîèòî ñå ñòèãà ïðè çàðÿä.
    Âúïðîñíèòå 2 âîëòà íàä ðàáîòíîòî íà ïëåéúðà, ìîãàò äà ñå ñâàëÿò ñ 2-3 ïîñëåäîâàòåëíî ñâúðçàíè äèîäà. Ñëåä òÿõ çà ñîáñòâåíî óñïîêîåíèå ìîæå äà ñå ñëîæè è ôèëòðèðàù êîíäåíçàòîð.
    Êîãàòî äâèãàòåëÿò íå ðàáîòè, íàïðåæåíèåòî ùå ïàäíå äî 10-11v ðàçáèðà ñå è äàëè ùå ðàáîòè ó-âîòî ñàìî ïðîáà ùå ïîêàæå.
    Q9550 /undervolted & overclocked/ 4x2GB DDR2 `Asus 9600GT Silence ` Fortron 500W with silence mode :::::: M-Audio Audiophile USB-> EF2 Tube Hybrid Amp-> Denon AH-D5000

  10. #10
    Registered User Piromansa's Avatar
    Join Date: Aug:2010
    Location: ñîôèÿ
    Posts: 592
    Íàé äîáðå ùå áúäå ñ dc-dc ïðåîáðàçóâàòåë.10-14 âîëòà íà âõîäà,12 âîëòà íà èçõîäà.
    mcp61m-m3 |Phenom 720 | 8192 MBytes RAM | 6150 onboard| 500 GB SATA | 420 watt Neotech

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