一、 Amandla webhodi lesifunda lesibonisi se-LED alimele
Ukwehluleka okubangelwa ukulimala kwe-capacitor kuphezulu kakhulu ezintweni zikagesi, ikakhulukazi ukulimala kwe-electrolytic capacitor.Ukulimala kwe-Capacitor kubonakala njenge: 1. umthamo oncishisiwe;2. Ukulahlekelwa amandla ngokuphelele;3. Ukuvuza;4. Isifunda esifushane.
二、 Ukulimala kokumelana
Kuvamile ukubona abasaqalayo abaningi begudlana ngama-resistors ngenkathi belungisa amabhodi wesifunda, noma bewadiliza noma be-soldering.Eqinisweni, ngokulungiswa okwengeziwe, inqobo nje uma uqonda izici zomonakalo zama-resistors, awudingi ukukhathazeka kakhulu.Ukumelana kuyisici esiningi kakhulu ezintweni zikagesi, kodwa akuyona ingxenye enezinga eliphezulu lomonakalo.Ukulimala kokumelana kuvame kakhulu kumasekhethi avulekile, amanani akhulayo okumelana ayivelakancane futhi amanani anciphayo okumelana ayivelakancane.Izinhlobo ezijwayelekile zifaka izihluthulelo zefilimu ye-carbon, izihlungi zefilimu yensimbi, izihluthulelo zamanxeba ngocingo, nama-fuse resistors.Singaqale sibheke uma kukhona noma yiziphi izimpawu zokushiswa komnyama ekuphikisweni okuphansi kokumelana ebhodini lesifunda.Ngokusekelwe ezicini zamasekethe amaningi avulekile noma ukumelana okwandisiwe lapho ukumelana konakalisiwe, kanye nokuthambekela kokumelana okuphezulu kokulimala kalula, singasebenzisa i-multimeter ukuze silinganise ngokuqondile amanani okumelana kuzo zombili iziphetho zokumelana okuphezulu ibhodi lesifunda.Uma inani lokumelana elilinganisiwe likhulu kunevelu yokumelana okulinganiselwe, Uma ukumelana konakaliswe nakanjani (kufanele kuqashelwe ukulinda kuze kube yilapho inani lokumelana libonisa ukuzinza ngaphambi kokwenza isiphetho, njengoba kungase kube nenqubo yokushaja nokukhipha ngokuhambisana ne-capacitor. izingxenye zesekethe), uma inani lokumelana elilinganisiwe lilincanyana kunevelu yokumelana okulinganiselwe, ngokuvamile alinakwa.Ngale ndlela, yonke i-resistor ebhodini lesifunda ikalwa kanye, futhi noma ubulala ngengozi inkulungwane, ngeke uphuthelwe i-resistor eyodwa.
三, Indlela Yokwahlulela Ikhwalithi Yezikhulisi Ezisebenzayo
Ama-amplifiers anezici "ze-virtual short" kanye "ne-virtual break", eziwusizo kakhulu ekuhlaziyeni amasekethe okusebenza akhulisa isivinini asebenzayo.Ukuqinisekisa uhlelo lokusebenza oluqondile, i-amplifier yokusebenza kufanele isebenze ku-loop evaliwe (impendulo engalungile).Uma kungekho mpendulo engalungile, i-amplifier yokusebenza ngaphansi kokukhulisa i-loop evulekile iba isiqhathanisi.Uma ufuna ukwahlulela ikhwalithi yedivayisi, kufanele uqale uhlukanise ukuthi idivayisi isetshenziswa njenge-amplifier noma isiqhathanisi kusekethe.Ngokomgomo we-amplifier virtual short, okungukuthi, uma i-amplifier yokusebenza isebenza kahle, i-voltage endaweni efanayo yokufaka kanye ne-reverse input terminals kufanele ilingane, noma ngabe ukhona umehluko, isesezingeni le-mv. .Yiqiniso, kwezinye izifunda eziphakeme zokufaka i-impedance, ukumelana kwangaphakathi kwe-multimeter kungase kube nomthelela omncane ekuhlolweni kwamandla kagesi, kodwa ngokuvamile akudluli ku-0.2V.Uma kukhona umehluko we-0.5V noma ngaphezulu, i-amplifier izohluleka ngokungangabazeki!Uma idivayisi isetshenziswa njengesiqhathanisi, ivunyelwe ukuthi ibe namatheminali okokufaka angalingani ohlangothini olufanayo kanye nezikhombisi-ndlela ezihlehlayo.Uma i-voltage efanayo inkulu kune-voltage ebuyela emuva, i-voltage ephumayo iseduze nenani eliphezulu elihle;Uma i-voltage efanayo
四, Ithiphu yokuhlola izingxenye ze-SMT nge-multimeter
Ezinye izingxenye ze-SMD zincane kakhulu, okwenza kube nzima ukusebenzisa ama-multimeter probes ajwayelekile ukuze kuhlolwe futhi kulungiswe.Okokuqala, zingabangela kalula ama-circuits amafushane, futhi okwesibili, akulungile ukuthi amabhodi esekethe ahlanganiswe nokufakwa kwe-insulation ahlangane nezingxenye zensimbi zezikhonkwane zengxenye.Nansi indlela elula ezoletha ukunethezeka okuningi ekuhloleni.Thatha izinaliti zokuthunga ezimbili ezincane kunazo zonke, (Ikholomu ye-Deep Industrial Control Maintenance Technology) futhi uzibeke ziqine ngokumelene nepeni lamamitha amaningi.Bese, thatha ucingo lwethusi oluncane oluvela ekhebula elinemicu eminingi, bopha ipeni nenaliti yokuthunga kanye nocingo olucolekileyo lwethusi, bese uzidayisela ngokuqinile.Ngale ndlela, lapho ukala izingxenye ze-SMT ngothi lokuloba elinetiphu yenaliti elincane, ayisekho ingozi yokuba neziyingi ezimfushane, futhi ithiphu yenaliti ingabhoboza i-insulation coating futhi ishaye izingxenye ezibalulekile ngokuqondile, isuse isidingo sokuzihlupha ngokuklwebha ifilimu.
五、Indlela Yokulungisa Yephutha Lesifunda Esifushane Sebhodi Lesifunda Ukunikezwa Amandla Avamile
Ekulungisweni kwebhodi lesifunda, uma kukhona isifunda esifushane kugesi ovamile, ngokuvamile iphutha elivame kakhulu, ngoba amadivaysi amaningi abelana ngokunikezwa kwamandla afanayo, futhi yonke idivayisi esebenzisa lokhu kunikezwa kwamandla kusolwa ukuthi iyisekhethi emfushane.Uma zingekho izingxenye eziningi ebhodini, ukusebenzisa indlela ethi "Hoe the Earth" ekugcineni kungathola iphuzu lesifunda esifushane.Uma kunezingxenye eziningi kakhulu, ukuthi "i-hoe the earth" ingakwazi yini ukulima isimo kuncike enhlanhleni.Nansi indlela enconyiwe esebenza kahle.Ngokusebenzisa le ndlela, ungathola umphumela ophindwe kabili ngesigamu somzamo futhi ngokuvamile uthole ngokushesha iphuzu lephutha.Kufanele kube khona ukunikezwa kwamandla okuguquguqukayo kanye namanje, ne-voltage engu-0-30V kanye ne-current ye-0-3A.Lokhu kunikezwa kwamandla akubizi futhi kubiza cishe ama-yuan angama-300.Lungisa i-voltage yesekethe evulekile ibe ileveli yevolthi yokunikeza amandla yedivayisi.Okokuqala, lungisa okwamanje kube okuncane.Sebenzisa le voltage kumaphuzu kagesi wokuphakelwa kwamandla wesekethe, njengamatheminali angu-5V no-0V we-chip yochungechunge engu-74.Kuye ngezinga lesifunda esifushane, kancane kancane ukwandisa okwamanje.Thinta idivayisi ngesandla sakho.Uma idivayisi ethile ishisa kakhulu, ngokuvamile iba ingxenye eyonakele.Ungayisusa ukuze uthole ukulinganiswa okwengeziwe nokuqinisekiswa.Yiqiniso, i-voltage ngesikhathi sokusebenza akufanele idlule i-voltage yokusebenza yedivayisi, futhi akufanele ihlehliswe, ngaphandle kwalokho izoshisa amanye amadivaysi amahle.
六、Irabha encane yokuxazulula izinkinga ezinkulu
Inani lamabhodi asetshenziswa ekulawuleni izimboni liyakhula, futhi amabhodi amaningi asebenzisa indlela yokufaka iminwe yegolide ezintini.Ngenxa yemvelo yezimboni enokhahlo, enothuli, enomswakama, futhi egqwala, kulula ngamabhodi ukuba abe namaphutha angalungile okuxhumana.Abangane abaningi kungenzeka ukuthi bayixazulule inkinga ngokushintsha amabhodi, kodwa izindleko zokuthenga amabhodi zikhulu kakhulu, ikakhulukazi kwamanye amabhodi emishini evela kwamanye amazwe.Eqinisweni, wonke umuntu angasebenzisa irabha ukuze asule ngokuphindaphindiwe ukungcola emunweni wegolide izikhathi ezimbalwa, awuhlanze, bese uzama umshini futhi.Mhlawumbe inkinga izoxazululeka!Indlela ilula futhi iyasebenza.
七、 Ukuhlaziywa kwamaphutha kagesi anesikhathi esihle nesibi
Ngokwamathuba, amaphutha kagesi ahlukahlukene anezikhathi ezinhle nezimbi angafaka phakathi izimo ezilandelayo:
1. Ukungaxhumani kahle phakathi kwebhodi nendawo, ukwehluleka ukuxhuma lapho ikhebula liphuka ngaphakathi, ukuthintana kabi phakathi kwepulaki yocingo netheminali, kanye nokunamathisela okungalungile kwezingxenye zonke ziyingxenye yalesi sigaba;
2. Kumasekhethi edijithali, ukungasebenzi kahle kwenzeka kuphela ngaphansi kwezimo ezithile ngenxa yokuphazamiseka kwesignali.Kungenzeka ukuthi ukugxambukela ngokweqile kuye kwathinta ngempela uhlelo lokulawula futhi kwabangela ukuba lenze amaphutha, futhi kukhona izinguquko kumingcele yengxenye ngayinye noma imingcele yokusebenza iyonke yebhodi lesifunda, okuholela ephuzwini elibalulekile ekhonweni lokulwa nokuphazanyiswa futhi okuholele ekutheni ukungasebenzi kahle;
3. Ukuzinza okushisayo okungalungile kwezingxenye Kusukela kumanani amaningi ezinqubo zokulondoloza, ukuzinza okushisayo kwe-electrolytic capacitor yokuqala kumpofu, kulandelwa amanye ama-capacitor, ama-triodes, ama-diode, ama-IC, ama-resistors, njll;
4. Kukhona umswakama, ukuqoqwa kothuli, njll ebhodini lesifunda.Umswakama nothuli kuzoqhuba ugesi ngomphumela wokumelana, futhi inani lokumelana lizoshintsha ngesikhathi sokwanda okushisayo.Leli nani lokumelana linomthelela ofanayo nezinye izingxenye.Uma lo mphumela unamandla, imingcele yesifunda izoshintshwa, ibangele amaphutha;
5. Isoftware futhi ingesinye sezici okufanele zicatshangelwe.Amapharamitha amaningi kumjikelezo alungiswa kusetshenziswa isofthiwe, futhi umkhawulo weminye imingcele usethwe uphansi kakhulu, ongaphakathi kwebanga elibalulekile.Uma izimo zokusebenza zomshini zihlangabezana nesizathu sokuthi isofthiwe inqume iphutha, kuzovela i-alamu.
Isikhathi sokuthumela: Jun-21-2023
