Bullnose LED Tsheb Teeb thiab Dynamo USB Charger: 4 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:31

Lub tsheb kauj vab no muaj lub zog pem hauv ntej uas txuas nrog lub teeb LED. Ntxiv rau qhov muaj lub zog tso tawm ntawm tus poj niam USB ntsaws. Koj tuaj yeem them koj lub xov tooj, ipod, GPS lossis lwm yam khoom siv USB.

Hauv qhov kev tsim no, USB chaw nres tsheb them nyiaj tuaj yeem raug ntsaws thaum tsis siv. Thaum them lub cuab yeej tuaj yeem khaws cia hauv koj lub hnab lossis hnab ev. Lub chaw nres tsheb them nyiaj muaj plaub lub AAA roj teeb rov siv tau txuas rau tus poj niam USB uas muab lub zog cia thib ob thiab them ib zaug tuaj yeem siv lub cuab yeej USB ywj siab ntawm lub tsheb kauj vab. Koj tuaj yeem siv dynamo los teeb lub teeb lossis USB tab sis tsis yog ib txhij. Lub toggle hloov ntawm lub qhov muag tuav lub qhov muag tig lub teeb rau pem hauv ntej tawm.

Kauj ruam 1: Cov voj voog

Muaj qee qhov kev sib txuas thiab cov lus qhia LED zoo ntawm Cov Lus Qhia. Tsuas yog txheeb xyuas qee qhov peev txheej kom tau txais koj cov kabmob.

LED rau cov pib tshiab: www.instructables.com/id/LEDs-for-Beginners/ sim tawm qhov sib txawv … ntsais muag, teeb pom kev rov qab, sib txuas ua ke => pilom.com/BicycleElectronics/DynamoCircuits.htm Raws li lub log pem hauv ntej tig nws tsim qhov hloov pauv tam sim no (AC) zog. 'Tus choj' yog lub khoos phis tawj uas hloov AC lub zog hluav taws xob mus rau DC lub zog. Tus choj tau tsim los ntawm qty (4) 1N5818 diodes. Bike Lub Teeb Pom Hauv Epoxy: Lub roj teeb pob nqus tau lub zog twg uas tsis siv los ntawm USB ntaus ntawv. Qhov: qty (4) 1N5818 Diodes qty (8) Dawb LEDs qty (1) Roj teeb pob

Kauj Ruam 2: USB Chaw Nres Tsheb

Kuv yuav lub pob 4-AAA roj teeb thiab poj niam 1/8 xov tooj ntawm lub xov tooj cua shack rau $ 3. Kuv txiav tus poj niam USB jacks tawm ntawm lub khoos phis tawj qub.

Ua ntej kuv txuas lub roj teeb pob thiab cov khoom siv USB ua ke. Tom ntej no kuv tau tshem cov roj teeb ib nrab thiab txuas lub xov tooj. Kuv txiav txim siab siv Sab laug ntawm lub xov tooj nkaus li DC zoo. Koj tsuas yog yuav tsum zoo ib yam thaum koj ua haujlwm ntawm kev sib txuas ntawm tus tuav. Kuv tau hlais 1/4 "qhov hauv lub hau rau 1/8" jack kom lo hla.

Kauj Ruam 3: LEDs

Kuv pib nrog ob lub teeb cateye zoo ib yam kuv tau tso ncig tab sis koj tuaj yeem siv yuav luag txhua LED nrog txoj cai tiv thaiv Circuit. Muaj ntau txoj kev pab ntawm Instructables nyob ntawm seb koj muaj dab tsi.

Kuv kwv yees cov LEDs no siv qhov hluav taws xob ib txwm muaj (~ 3 volts) thiab qhov no tau lees paub los ntawm kev saib ntawm Cateye Circuit Court uas muaj 2 hom N 1.5 volt roj teeb hauv koob ua kom muaj zog qty (3) LED teeb nyob rau tib lub sijhawm. Kuv muaj 6 volt dynamo yog li kuv tsuas yog txuas ob kab ntawm 3-volt cateye's hauv kab kom sib npaug 6-volt. Feem ntau nws raug pom zoo kom siv cov tshuaj tiv thaiv yog tias koj muaj hluav taws xob ntau dua li tso cai los ntawm LED. Lawv ua haujlwm tau zoo txog tam sim no hauv kab ntawv yog li kuv yuav qhia rau txhua tus paub yog tias LEDs tsis zoo li ntxov ntxov. 12/1/09 hloov tshiab => Yog li cov LEDs tau hlawv tawm…:(.… Yog li kuv yuav qty (8) LEDs thiab siv qhov teeb tsa zoo sib xws. Lub sijhawm no kuv siv IB 40ohm resistor. Vim li cas tus thawj cateye hlawv? dynamo tau tsim ntau ntau dua 6 volts. Piv txwv li, lub tshuab hluav taws xob tshiab tau ua tiav tag nrho qhov hluav taws xob poob ntawm 14 volts! Kev ntsuas lub rooj zaum qhia tau tias qhov hluav taws xob tshiab poob thoob plaws txhua lub txhab nyiaj lossis LEDs yog ~ 3.4 volts (hauv qhov tshwj xeeb) thiab qhov hluav taws xob hla tus tiv thaiv yog 7.5 volts. Lwm txheej ntawm kev tiv thaiv hluav taws xob yuav yog qhov tshwj xeeb tiv thaiv rau txhua LED yog li kuv yuav qhia rau koj paub tias qhov Circuit Court no tsis ua lossis kav ntev ….. 2/09/10 Hloov Kho: Sooooo qhov teeb meem nrog xwb siv qty (1) resistor yog koj tab tom faib ntau wattage los ntawm qhov 1 resistor; uas yog 7.5 volts / 40 ohms = 187 mA. (los ntawm resistor) VxA = watts li 7.5 x 0.187amps = 1.4 watts. Koj yog tsis mus nrhiav 40 ohm resistor ntsuas ntawm 1.4 watts. Yog li ntawm qhov no (thiab tom qab hlawv tawm ntau qhov tawm tsam) Kuv siv 100 OHM 1/2watt 5% carbon Fil m resistor cov. Qhov no yuav tsum coj cov amperage los ntawm LEDs nqes mus rau 20mA cov lus qhia tshwj xeeb rau LEDs. Koj tuaj yeem tuaj yeem yuav LEDs uas tso cai rau cov dej ntws siab dua (80mA, 90mA, 250mA, 300mA, thiab nce) tab sis cov no xav tau kev saib xyuas me ntsis ntxiv (tso cua sov!) Kom ua kom sov sov. Pilom siv 5 hli tuab ntawm txhuas los hloov cov cua sov kom deb ntawm LEDs…. xyuas nws tawm. 2010-30-11 Ua haujlwm tau zoo tshaj li ib xyoos! txheeb xyuas qhov txuas ntxiv no ntxiv ==> sai sai no.

Kauj ruam 4: Handlebar Ua Haujlwm

Kev thaiv cov tes tuav tau ncaj ncaj rau pem hauv ntej. Dynamo yog tsau los ntawm AC ncej. Yog li txhua qhov ntawm DC yuav tsum tau tiv thaiv los ntawm cov hlau liab qab.

2010-30-11 - yog qhov hloov pauv dinky tau ua haujlwm txog ~ 2 lub hlis ntawm oregon nag … (daim ntawm!>#() Ib lub tswv yim rau qhov hloov pauv dej tsis zoo? Kuv tau txais cov khoom siv PCB me me los ntawm Radio Shack rau ~ $ 2. zoo ib yam li cov npe hauv qab no. Kuv yuav tsum txiav lub rooj tsavxwm kom me me kom haum rau hauv cov tes tuav. Kuv siv cov kua nplaum kub los tiv thaiv PCB thiab diodes. (ua tsaug Jay rau lub tswv yim). https://www.radioshack. com/product/index.jsp? productId = 3173937 Qty (4) diodes 1N5818 tuaj yeem pom ntawm no rau $ 0.38 txhua: https://search.digikey.com/scripts/DkSearch/dksus.dll? Qhia & npe = 1N5818FSCT-ND Txhua Muab cov khoom tso rau hauv cov tes tuav. Muab qee cov xov hlau tso rau hauv qab daim kab xev tuav (saib daim duab). Ua kom lub qhov nrog rab yaj phom tiv thaiv huab cua.

Khiav Tawm Hauv Qhov Teeb Pom Hmo! Kev sib tw