一, amandla ebhodi le-LED Display Circuit lilimele
Ukwehluleka okubangelwa ukulimala kweCapacitor kuphakeme kakhulu emishini ye-elekthronikhi, ikakhulukazi ukulimala kwe-electrolytic capacitor. Ukulimala kweCapacitor kuboniswa njengokuthi: 1. Ithawula elincishisiwe; 2. Ukulahlekelwa ngokuphelele kwekhono; 3. Ukuvuza; 4. Umjikelezo omfushane.
二, ukulimala kokumelana
Kujwayelekile ukubona abantu basabaqalayo ababaqalisayo nabalungisa amabhodi wesifunda, kungaba ukudiliza noma ukuthengisa. Eqinisweni, ngokulungiswa okwengeziwe, inqobo nje uma uqonda izici zomonakalo zabaphikisayo, awudingi ukukhathazeka kakhulu. Ukumelana nengxenye eminingi kakhulu emishini kagesi, kepha akuyona ingxenye enezinga eliphakeme kakhulu lokulimala. Ukulimala kokumelana kuvame kakhulu emibuthanweni evulekile, ngamanani akhulayo wokumelana nawo aqabulayo futhi anciphe amanani wokumelana nawo akuvamile. Izinhlobo ezejwayelekile zifaka phakathi ukumelana ne-carbon film, abamelana nemephu yensimbi, ukumelana nenxeba le-wire, kanye nokumelana ne-fuse. Singaqala ukubona ukuthi zikhona yini izimpawu zokuvutha ezimnyama ekumelaneni nokumelana okuphansi kwebhodi lesekethe. Ngokusekelwe kwizici zemibuthano evulekile kakhulu noma ukumelana okwandayo lapho ukumelana kulinyazwa, kanye nokuthambekela kokumelana okuphezulu ukuze kulinyazwe kalula, singasebenzisa i-multimeter ukuze silinganise kalula amanani okumelana nawo womabili amakhawuntara ebhodini lesekethe. Uma inani lokumelana elilinganiselwe likhulu kunenani lokumelana nokuhlangana, uma ngabe ukumelana kulimele ngokweqiniso (kufanele kuqashelwe ukulinda kuze kube yilapho inani lokumelana libonisa ukuqina, ngoba kungaba khona inani lokumelana elilinganiselwe lincane kunenani lokumelana nokuhlangana, ngokuvamile akunakwa. Ngale ndlela, wonke umhlangano webhodi yesifunda ulinganiswa kanye, futhi noma ngabe ungabulala ngengozi inkulungwane, ngeke uphuthelwe ukumelana okukodwa.
三, indlela yokwahlulela ikhwalithi yama-amplifiers okusebenza
Ama-amplifiers anezici ze- "Virtual Drief" kanye "ne-Virtual Break", eziwusizo kakhulu ekuhlaziyeni imibuthano yokusebenza esebenza ngomugqa. Ukuqinisekisa uhlelo lokusebenza lwe-Linear, i-amplifier yokusebenza kufanele isebenze ku-loop evaliwe (impendulo engemihle). Uma kungekho mpendulo engemihle, i-amplifier yokusebenza ngaphansi kokuphakanyiswa komoya ovulekile iba ukuqhathanisa. Uma ufuna ukwahlulela ikhwalithi yedivayisi, kufanele uqale uhlukanise ukuthi ngabe idivaysi isetshenziswa njenge-amplifier noma ukuqhathanisa esifundeni. Ngokomthetho we-Amplifier Virtual EDemo, okusho ukuthi, uma i-amplifier yokusebenza isebenza kahle, ivolumu ngokufaka okufanayo kanye nama-terminals okufaka okubuyisela emuva kufanele alinganise, noma ngabe kunomehluko, kusekuleveli ye-MV. Vele, kwezinye izibuyiso zokufaka okufakiwe okuphezulu, ukumelana kwangaphakathi kwe-multimeter kungahle kube nomthelela omncane ekuhlolweni kwamandla kagesi, kepha ngokuvamile akwedlule i-0.2V. Uma kunomehluko we-0.5v noma ngaphezulu, ngokungangabazeki i-Amplifier izokwehluleka! Uma idivaysi isetshenziswa njengesiqhathaniso, kuvunyelwe ukuba nama-terminals wokufaka angalingani ngendlela efanayo nezinkomba ezihlekisayo. Uma i-voltage efanayo inkulu kune-voltage eguqukayo, i-voltage ephumayo isondele ngenani eliphakeme eliphezulu; Uma i-voltage efanayo
四, ithiphu yokuhlola izakhi ze-SMT nge-multimeter
Ezinye izakhi ze-SMD zincane kakhulu, zikwenza kube yinto ephathekayo ukusebenzisa ama-multimeter ajwayelekile wokuhlola nokulungisa. Okokuqala, bangenza kalula izibungu ezimfushane, kanti okwesibili, kuphazamisa amabhodi wesifunda ahlanganiswe nokufakelwa okuhlangenwe nakho okuthi kuhlangane nezingxenye zensimbi. Nayi indlela elula ezoletha lula okulula ekuhlolweni. Thatha izinaliti ezimbili zokuthunga ezincane kakhulu, (ikholamu yezobuchwepheshe yokulawula izimboni ezijulile) bese uyibeka ngokuqinile iphikisana nepeni le-multimeter. Ngemuva kwalokho, thatha ucingo oluncane lwethusi kusuka kukhebula le-multi-strand, bopha ipeni bese uthumela inaliti kanye nocingo lwethusi oluhle, futhi luziphoqele ngokuqinile. Ngale ndlela, lapho ulinganisa izingxenye ze-SMT nge-stylus enephuphu elincane lenaliti, akusekho ube yingozi yemibuthano emifushane, futhi ithiphu yenaliti ingabhoboza ukufakwa okufakwayo futhi lishaye ngqo izingxenye ezibalulekile, lisuse isidingo sokuhlupha ukukhipha ifilimu.
五, indlela yesondlo yephutha lesifunda elifushane lokuhlinzekwa kwamandla okuvamile
Ekunakekelweni kwebhodi lesekethe, uma kukhona umjikelezo omfushane ojwayelekileukunikezwa kwamandla kagesi, kuvame ukuba yiphutha elivame kakhulu, ngoba amadivayisi amaningi abelana ngokuhlinzekwa kwamandla okufanayo, futhi wonke amadivayisi asebenzisa lokhu kuhlinzekwa kwamandla kusolwa ngesifunda esifushane. Uma kungekho ezingxenyeni eziningi ebhodini, kusetshenziswa indlela ethi "Hoe The Earth" ekugcineni ingathola iphuzu lokujikeleza elifushane. Uma kunezakhi eziningi kakhulu, noma ngabe "i-hoe the hlaba" ingahlanza isimo sincike enhlanhleni. Nayi indlela enconyelwe esebenza kahle. Ngokusebenzisa le ndlela, ungathola kabili umphumela ngengxenye yomzamo futhi uvame ukuthola ngokushesha iphuzu lephutha. Kufanele kube nokuhlinzekwa kwamandla okunamandla aguqukayo futhi okwamanje, ngamandla kagesi angu-0-30v kanye namanje angu-0-3a. Lokhu kuhlinzeka ngamandla akubizi futhi kubiza cishe ama-300 yuan. Lungisa i-Open Circuit Voltage kuya ezingeni ledivayisiukunikezwa kwamandla kagesivoltage. Okokuqala, shintsha okumanje kuya ubuncane. Sebenzisa leli voltage kumaphoyinti we-Power Supply Voltage wesifunda, njenge-5V ne-0V ukuphela kwe-74 Series Chip. Ngokuya ngezinga lesifunda esifushane, kancane kancane kwandise okwamanje. Thinta insiza ngesandla sakho. Lapho idivaysi ethile ishisa kakhulu, imvamisa iyingxenye eyonakalisiwe. Ungayisusa ukuze ulwele futhi isiqinisekiso. Vele, i-voltage ngesikhathi sokusebenza akumele yedlule i-voltage esebenzayo yedivayisi, futhi akumele ibuyiselwe emuva, ngaphandle kwalokho izoshisa amanye amadivayisi amahle.
六, irabha elincane ukuxazulula izinkinga ezinkulu
Inani lamabhodi asetshenziswe ekulawulweni kwezimboni liyanda, futhi amabhodi amaningi asebenzisa indlela yokufaka iminwe yegolide ibe yi-Slots. Ngenxa yendawo yezimboni enokhahlo, okunothuli, okunomswakama, kanye nokuwohloka, kulula amabhodi ukuba abe namaphutha wokuxhumana ampofu. Abangani abaningi kungenzeka baxazulule inkinga ngokubuyisela amabhodi, kepha izindleko zokuthenga amabhodi zikhulu kakhulu, ikakhulukazi amabhodi athile angenisiwe. Eqinisweni, wonke umuntu angasebenzisa i-eraser ukuze asule kaningi ukungcola ngomunwe wegolide amahlandla ambalwa, ahlanze, bese uzama futhi umshini. Mhlawumbe inkinga izoxazululwa! Indlela ilula futhi isebenza.
七, ukuhlaziywa kwamaphutha kagesi ngezikhathi ezinhle nezimbi
Mayelana nethuba, amaphutha ahlukahlukene kagesi anezikhathi ezinhle nezimbi angafaka lezi zimo ezilandelayo:
1
2. Ngemibuthano yedijithali, ukungasebenzi kahle kwenzeka kuphela ngaphansi kwemibandela ethile ngenxa yokuphazanyiswa kwesiginali. Kungenzeka ukuthi ukuphazamiseka ngokweqile kuthinte ngempela uhlelo lokulawula futhi kwalapho kubangele ukuba ngenze amaphutha, futhi kukhona nezinguquko kumapharamitha amaningi ebhodi yokulwa, okuholela ephuze elibucayi emandleni alwa nokuphazamiseka futhi kuholele ukungasebenzi kahle;
I-3. Ukuqina okungekho emthethweni kwezakhi ezivela kunani elikhulu lemikhuba enkulu yokulungisa, ukuqina okushisayo kwe-electrolytic casacitor kumpofu, kulandelwa amanye ama-capacitors, ama-triodes, ama-diodes, njll.
4. Kukhona umswakama, ukuqoqwa kothuli, njll. Ebhodini lesekethe. Ama-umswakama nothuli azokwenza ugesi ngomphumela wokumelana, futhi inani lokumelana lizoshintsha lapho kunwetshwa khona. Leli nani lokumelana linomphumela ofanayo nezinye izakhi. Uma lo mphumela uqinile, amapharamitha wesekethe azoshintshwa, adale amaphutha;
I-5. Isoftware nayo ingenye yezinto okufanele zicatshangelwe. Amapharamitha amaningi esifundeni alungiswe kusetshenziswa isoftware, futhi umugqa wamapharamitha athile usethelwe kakhulu, okungaphakathi kwebanga elibucayi. Lapho izimo zokusebenza zomshini zihlangabezana nesizathu sesoftware ukuthola iphutha, kuzovela i-alamu.
Isikhathi sePosi: Jun-21-2023
