Isiteshi sokubonelela nge-LUBANG kuphela yifektri yokuqala kunye ne-arhente esemthethweni yefektri yokuqala, inokuyonwabela inkonzo efanayo okanye engcono kunye nefektri yokuqala ngokwenkxaso yobugcisa, uhlalutyo lokungaphumeleli kwesampuli, ukuzinza kwe-chain chain kunye nokunye.Umthombo kunye nomgangatho weempahla ziyinyani ngokupheleleyo, ziselubala kwaye zithembekile.Ukuba umthengi ufuna, itekhnoloji yeHaohaixin inokubonelela ngeevawutsha zoqobo ezifanelekileyo kunye neodolo yomthengisi yearhente esemthethweni.Ulawulo lwethu olungqongqo lweendlela zokubonelela lungundoqo wolawulo lwethu lomgangatho.Inkampani iphumelele isatifikethi se-ISO.Ukuqinisekisa uzinzo lwekhonkco lonikezelo lwabathengi, ukufikelela ngokukhawuleza kwisampulu kunye neemfuno zokuthengwa kwebhetshi encinci kunye neemvumelwano zexabiso lokuthengwa kweqela lixabiso esibonelela ngalo kubathengi.
I-ic chip luhlobo olukhethekileyo lweziphumo zophando lobugcisa, inani elikhulu lophuhliso lweetshiphu ze-ic, lingene ngokusemthethweni kwintsimi yophando lwe-chip yamandla, ukuthengwa kwempahla kufuna ingqalelo eninzi, abantu bayaqhubeka nokulawula amandla ukugcina indlela yokuthengwa kwe-ic power chip, ilandelayo ithatha ujongo kwimiba yokuthengwa kwe-ic chip kufuneka ingqalelo kunye nesiseko, indlela yokukhetha.
1. Nika ingqalelo kwiindleko zokuthengwa kwee-ic chips
Okokuqala, i-ic chip yi-chip enomxholo wobugcisa obuninzi, ukuthengwa kwe-ic chip nikela ingqalelo kwindawo yentengiso kunye nokusetyenziswa kweendleko zamandla, ixabiso lendawo yempahla, kodwa ayikwazi ukuchitha imali, ngolwazi lokuthenga iteknoloji, ngemali. ngokuchasene neendleko, yimeko eyimfuneko yehlabathi.
2. Nika ingqalelo kuhlelo lokuthengwa kwe-ic chip
Zininzi iindlela zokuthenga iitshiphusi ze-ic, kuba zizintlu ezahlukeneyo, indlela yokuthengwa nayo ineyantlukwano echuliweyo, efana ne-AD/DC yokumodareyitha iitshiphusi ze-IC zidinga i-low-voltage control control circuit, kwelinye icala yi-high-voltage control. tshintsha i-transistor, kungenjalo uvumelane nezinye iintlobo zeetshiphusi ze-ic zibhidekile, amandla ombane alawulwa ngokubanzi kwindawo efanelekileyo, ukuthengwa kwempahla kuyafuneka ukuba unikele ingqalelo ukuze ubone.
3.ic abavelisi bokuthengwa kwetshiphu ukukhetha ingqalelo
Ukuthengwa kwe-ic chip ukunceda amashishini aqonde ngcono abavelisi abahlukeneyo, banokunikela ingqalelo kumahluko phakathi kwabo, indlela yokukhetha ingxaki, okokuqala ngokwenkunzi yokusebenza yomenzi ukubona ubungakanani bemveliso, emva koko kubasebenzi bobugcisa ukuba bona umgangatho wetshiphu, ukuthengwa kwe-ic chip, abavelisi ukwenza uhlalutyo olukhethekileyo.
Iimpawu ezahlukeneyo zokuthengwa kwe-ic chip zifumaneka ngokweemfuno zeechips ezahlukeneyo ze-ic, imeko ethile iyahlaziywa, ukhetho luhluke, ukuthembela kukhulu, kwaye isigqibo asinakwenziwa ngaphandle kwesizathu, sichaphazela ukusebenza kweechips ze-ic. .
I-chip yesekethe edibeneyo yinxalenye ebalulekileyo yokuqulunqwa kweemveliso ze-elektroniki, ukuhlangabezana ne-chip ehlaziyiweyo okanye i-chip embi, ukusilela komsebenzi wemveliso kunye nezinye iingxaki ezinokuthi zenzeke.Ke, yintoni eyantlandlolo, entsha, ehlaziyiweyo?
1. Ukuthunyelwa koqobo kubhekiselele kumzi-mveliso wokuqala owaveliswayo, owahlulwe waba ngowentsusa evela kumazwe angaphandle kunye neyasekhaya.
2. Igama elithi "bulk new goods" lisetyenziswa ikakhulu kwinkalo ye-IC chips, kwaye intsingiselo ikakhulu ngolu hlobo lulandelayo:
a.Le mveliso ayiveliswanga ngumzi-mveliso wokuqala, inokuveliswa ngabanye abavelisi, kodwa ngophawu lwangaphambili, oko kukuthi, iimpahla zomgunyathi.
b.Iimpahla ziveliswa ngumzi-mveliso wokuqala, ngenxa yokuba ezinye izinto ezingafanelekanga ezibangela ukuba imveliso ingaphumeleli ukuhlangabezana nomgangatho, kodwa umsebenzi usalungile, ngeli xesha umzi-mveliso wokuqala uya kunciphisa ixabiso kwaye uyilahle ngokusebenzisa amanye amajelo. .
c.Imveliso yokuqala, esetyenzisiweyo, yapolishwa, yafakwa enkonkxeni, yaza yathengiswa, eyaziwa ngokuba yiSAN entsha.
I-3, iimpahla ezihlaziyiweyo zibhekiselele kwimveliso evela kumzi-mveliso wokuqala emva kokuveliswa, emva kokusetyenziswa, kukho ukunxiba okuthile, emva kokulungiswa, ukuze ukubonakala kwayo kubuyiselwe kufutshane nomzi-mveliso wokuqala osanda kuveliswa.
I-Triode yinxalenye esetyenziswa ngokuqhelekileyo kwiisekethe ze-elektroniki, kodwa inokusilela ngexesha lokusetyenziswa.Izakhono ezisebenzayo kunye neendlela zokusombulula impazamo ye-triode zezi zilandelayo:
1. Ungasebenzisa i-multimeter ukuvavanya ukujonga ukuba i-polarity, i-amplification yangoku, ukuvuza kwangoku kunye nezinye iiparitha ze-transistor ziqhelekileyo.Ukuba i-anomaly ifunyenwe, ungacinga ngokutshintsha i-triode.
2. Ungasebenzisa i-oscilloscope ukujonga imeko yokusebenza ye-transistor, khangela ukuba umqondiso uyinto eqhelekileyo, nokuba kukho ukuphazamiseka kunye nezinye iingxaki.Ukuba ingxaki ifunyenwe, unokuqwalasela ukutshintsha i-triode okanye ukulungelelanisa iiparamitha zesekethe.
3. Ukongezelela, ungasebenzisa kwakhona isibhamu sokushisa okanye itafile ye-welding yokufudumeza ukujonga ukuba kukho impazamo yokushisa kwi-transistor.Ukuba ufumana ingxaki, unokucinga ngokutshintsha i-transistor okanye ukuyilungisa.
Ukusombulula impazamo ye-triode, kuyimfuneko ukuqwalasela izinto ezininzi ngokubanzi, kwaye wamkele iindlela ezifanelekileyo zokufumanisa nokulungiswa.
Abantu banokufaka ezinye iinkqubo ezisekiweyo kwisixhobo se-MCU.Ikhompyuter enye yetshiphu inokufumana ikhowudi yenkqubo kwimemori ngexesha lenkqubo yokusebenza, kwaye emva koko iqhube imisebenzi enengqiqo, ukuze ikwazi ukwenza imisebenzi enxulumeneyo ngokweemfuno zekhowudi.Logama nje i-MCU icinyiwe, inkqubo kwi-MCU iya kuvalwa.
Kubomi obukrelekrele, i-MCU iye yaba yinkqubo yolawulo oluphambili lwezixhobo ezithile ezikrelekrele.Kubomi babantu kunye nezixhobo zokuvelisa, kunokubakho i-microcontroller kuyo yonke indawo, njengezixhobo ezithile zexesha, izixhobo zokulawula ngokuzenzekelayo njalo njalo.I-SCM inomsebenzi wolawulo oluzenzekelayo kwaye isetyenziswa ngokubanzi.Yonke imveliso yoomatshini esetyenziswa kubomi babantu iya kuba ne-SCM edibeneyo.Umzekelo, iiselfowuni esizisebenzisayo kunye nezinye izinto zokudlala zabantwana ziya kuxhotyiswa ngee-microcontroller ezi-1 ukuya kwezi-2.
Kwinkalo yesicelo, esona sicelo siphambili se-microcomputer ye-chip sisixhobo esizenzekelayo, esinokuthi sisekelwe kwitekhnoloji ye-microcomputer ye-chip enye ukuguqula izixhobo zemveli zoomatshini nezombane, ukuze ezinye izixhobo zemveli zoomatshini nezombane zifezekise ulawulo oluzenzekelayo. .Ngokomzekelo, ukusetyenziswa kweekhompyutha ezinetshiphu enye kunokulawula iifeni nezixhobo zomoya, ezinokuzikhuthaza ukuba zidlale indima eyomeleleyo, ukuze abantu bakwazi ukulawula ngokulula izixhobo ezithile zoomatshini nezombane.
Iiparamitha zokusebenza ze-TDK capacitors zizibonakaliso ezibalulekileyo zokuvavanya umgangatho wabo kunye nokusetyenziswa okuqhelekileyo, kwaye ngokusebenzisa le miqathango, inokunceda abantu bakhethe kwaye basebenzise iimveliso zombane okanye zombane ngokuchanekileyo.
Iiparamitha zokusebenza ezibalulekileyo ze-TDK capacitors ikakhulu ziquka le miba ilandelayo:
1. I-voltage yokusebenza elinganisiweyo: ibhekisela kumbane ophezulu wokusebenza ngokuqhubekayo kwindawo yokusetyenziswa echaziweyo.Le parameter inquma ubuninzi be-voltage i-capacitor enokumelana nayo kwisekethe, ukugqithiswa kwe-voltage kunokubangela umonakalo kwi-capacitor.
2. I-Nominal capacitance kunye nokuphambuka okuvumelekileyo: Umthamo ophawulweyo ngumthamo wesigxina we-capacitor, kodwa kukho impazamo phakathi komthamo we-capacitance, ngoko ke kuyimfuneko ukuqonda ubudlelwane phakathi kokuphambuka kunye nomthamo we-capacitance.Le parameter ibaluleke kakhulu ukuqinisekisa ukusebenza okuchanekileyo kwe-capacitor kwisekethe.
3. Amandla e-Dielectric: ukukwazi kwe-capacitor ukumelana namandla ombane ngaphandle kokutshatyalaliswa.Le yiparameter ephambili yokuvavanya ukuba i-capacitors inokusebenza ngokuzinzileyo kwiindawo zombane ophezulu.
4. Ilahleko: Amandla asetyenziswa yi-capacitor ngenxa yokushisa kuthiwa yilahleko ye-chip capacitor.Le parameter ibonisa ukulahlekelwa kwamandla e-capacitor kwinkqubo yokusebenza, eyona nto ibaluleke kakhulu ekuhloleni ukusebenza kakuhle kunye nobomi benkonzo ye-capacitor.
5. Ukusebenza kwe-insulation: ngokukodwa kubandakanya ukuchasana kwe-insulation, ixesha elingaguqukiyo kunye nokuvuza kwangoku.Ukuxhatshazwa kwe-insulation kubonisa ixabiso lokumelana ne-insulation material ngaphakathi kwe-capacitor, kwaye isalathisi esibalulekileyo sokuvavanya imeko yokuvuza ye-capacitor.Ixesha eliqhubekayo kunye nokuvuza kwangoku kuyimilinganiselo ebalulekileyo yokuvavanya ukusebenza kwe-insulation ye-capacitors.
6. I-coefficient yokushisa: Ubudlelwane phakathi kokutshintsha kweqondo lokushisa kunye nokutshintsha kwe-capacitance.Le parameter ibonisa ukuzinza kokusebenza kwee-capacitors kwiindawo ezahlukeneyo zokushisa, okubaluleke kakhulu ukuqinisekisa ukusebenza okuthembekileyo kwee-capacitors kwiindawo ezinzima.
Oku kungentla yireferensi yovavanyo lwentsebenzo yee-TDK capacitors.Kunconywa ukuba ukhangele ngokucophelela incwadana yemveliso kunye nephepha lenkcazo xa kuthengwa i-capacitors ukuqonda ixabiso elithile kunye nobubanzi bokusetyenziswa kweeparitha ezahlukeneyo zokusebenza ukuqinisekisa ukuba i-capacitors inokuhlangabezana neemfuno zangempela zokusetyenziswa.
Xa ukhetha i-capacitor ekwibhodi yemoto efanelekileyo, ezi zinto zilandelayo zibalulekileyo kufuneka ziqwalaselwe:
1. Umthamo: Khetha umthamo ofanelekileyo we-capacitance ngokweemfuno zenkqubo ye-elektroniki yemoto ukuze uqinisekise ukuba i-capacitor inokubonelela ngokugcinwa kwamandla okwanelisayo ukuhlangabezana neemfuno zesekethe.
2. I-voltage: I-voltage elinganisiweyo ye-capacitor kufuneka ihambelane ne-voltage yenkqubo ye-elektroniki yemoto ukuqinisekisa ukuba i-capacitor inokusebenza ngokuqhelekileyo ngaphakathi koluhlu lwenkqubo yombane.
3. Uluhlu lweqondo lokushisa: Ngenxa yokuba indawo yokusebenza ngaphakathi kwemoto ingaba nzima ngakumbi, kuyimfuneko ukuqinisekisa ukuba i-capacitor ekhethiweyo inokusebenza ngokuqhelekileyo kwiqondo lokushisa elibanzi.
4. Ukuthembeka: Khetha ii-capacitors eziphumelele uvavanyo lokuthembeka kwaye zihlangabezane nemigangatho yokuqinisekisa i-car industry ukuqinisekisa ukuzinza komsebenzi kunye nomgangatho.
I-5.ESR (ukumelana nochungechunge olulinganayo) : I-ESR inempembelelo ebalulekileyo ekuzinzeni kokusebenza kunye namandla enkqubo ye-elektroniki yemoto, kwaye i-capacitor ene-ESR ephantsi kufuneka ikhethwe.
6. Isikali kunye nemowudi yesixhobo: Qwalasela ukuba isikali kunye nemowudi yesixhobo se-capacitor iyahlangabezana neemfuno zoyilo lwesixokelelwano sombane wemoto, kubandakanywa ubungakanani kunye nobunzima bendawo ekuyo nokuba ngaba izixhobo zokulungisa ezikhethekileyo ziyafuneka.
7. Iindleko: Ngaphantsi kwesiseko sokwanelisa iimfuno zokusebenza, iindleko kunye nokusebenza kweendleko ze-capacitors zicatshangelwa ukuba zifezekise ukhetho olunoqoqosho kunye nolunengqiqo.
Isishwankathelo, ezi zinto zingentla ziqwalaselwa ekukhethweni kwe-capacitor yezinga lemoto kwiimoto ezifanelekileyo.Kuyacetyiswa ukuba ubhekisele kwiinkcukacha zemveliso yomthengisi kunye neenkcukacha zobugcisa xa ukhetha, okanye udibane neengcali ukuze zihlolwe kwaye zithunyelwe.
1. Ukumisela izibonda ezintle kunye nezibi ukusuka kwimbonakalo, umgca ochanekileyo we-package yensimbi ye-voltage regulator diode tube body is flat, kwaye i-negative extremity i-semicircular.Umzimba we-diode otywiniweyo weplastiki, kwelinye icala le-electrode engalunganga, esinye isiphelo se-electrode efanelekileyo eprintwe ngokumakishwa kombala.Uphawu lwe-diode yokulawula ayicacanga, ungasebenzisa kwakhona i-multimeter ukwahlula i-polarity yayo, indlela yokulinganisa i-diode eqhelekileyo iyafana, oko kukuthi, ifayile ye-multimeter R * 1k, iipeni ezimbini zixhunyiwe kwi-electrode ezimbini i-diode yomlawuli, linganisa umphumo, kwaye ulungise imilinganiselo emibini yeepeni.Kwiziphumo ezimbini zokulinganisa, xa ixabiso lokumelana lincinci kakhulu, ipeni yokubukela emnyama ixhunywe kwi-electrode efanelekileyo ye-diode yokulawula, kwaye ipeni elibomvu elibomvu lixhunywe kwi-electrode engalunganga ye-diode yokulawula.Ukuchasana okulungileyo kunye nokungalunganga kwe-diode yokulawula kuncinci okanye okungapheliyo, kubonisa ukuba i-diode yokulawula iphosakele okanye yonakele.
2. Ixabiso lamandla ombane we-0 ~ 30 v lilinganiswa ngokuqhubekekayo kobonelelo lwamandla lweDC olulungelelanisiweyo, le diode ilandelayo ye-13 v yokulawula, umbane ophumayo wonikezelo lwamandla olawulwayo unokulungelelaniswa ukuya kwi-15 v, kunye namandla okuvuma komgca womama osebenzayo. kuphela i-1.5 i-kΩ yangoku yokumelana nokunciphisa imilinganiselo ilinganiswa emva kokuba i-diode ye-Zener idibaniswe kwi-cathode, kwaye i-power-Zener diode ilungile, kwaye kwakhona i-voltage ye-Zener diode ilinganiswa nge-multimeter, kwaye ukufundwa kokulinganisa ixabiso le-voltage ye-Zener diode. .Xa ixabiso le-diode yokulawula i-voltage likhulu kune-15V, ukunikezelwa kwamandla okulawula umbane kulungelelaniswa ngaphezu kwe-20V.Iimitha zeMegohm ngaphantsi kwe-1000V zingasetyenziselwa ukubonelela ngobonelelo lwamandla ovavanyo kwiidiode ezilawulwayo.Indlela yile: imitha ye-megohm ye-Zener diode ye-electrode engalunganga, imitha ye-terminal ye-megohm engalunganga kunye nesigaba esilungileyo se-Zener diode, kunye nemitha ye-megohm iphathwa ngokuhambelana nemimiselo, kwangaxeshanye, i-multimeter ibeka iliso kumbane. kuzo zombini iziphelo ze-diode ye-Zener (iprofayili ye-voltage ye-multimeter kufuneka ixhomekeke kwixabiso elizinzile le-voltage), isalathiso se-voltage ye-multimeter izinzile, kunye nexabiso le-voltage ye-Zener diode yixabiso elizinzile.Ukuba ixabiso elizinzileyo lombane we-voltage regulator diode lilinganiswa, libonisa ukuba i-diode ayizinzile.
Xa kuqwalaselwa ulawulo lwe-EMI, iinjineli zoyilo kunye neenjineli zoyilo lwebhodi yePCB kufuneka ziqale ziqwalasele ukhetho lwe-IC chip.Iimpawu ezithile zeesekethe ezidityanisiweyo ezifana nohlobo lwephakheji, amandla ombane ocalanye kunye neteknoloji yetshiphu (umzekelo, i-CMOS, i-ECI) inempembelelo enkulu kuphazamiseko lombane.
1. Umthombo wokuphazamiseka kwesekethe ye-electromagnetic edibeneyo
Imithombo ye-PCB yesekethe edibeneyo ye-EMI ibandakanya ikakhulu: i-EMI umbane wombane kunye nomqondiso wangoku obangelwa yi-square wave signal frequency frequency at the output end, ukuvelisa intsimi yombane kunye nemagnethi ebangelwa yi-capacitor kunye nokufakelwa kwe-chip ngokwayo. uguqulo lwesekethe edibeneyo yedijithali ukusuka kwi-logic ephezulu ukuya ephantsi okanye ukusuka kwi-logic ephantsi ukuya kwi-logic ephezulu.
I-square wave eveliswe yi-IC chip iqulethe izinto ze-sinusoidal kunye ne-harmonic ezinoluhlu olubanzi lwamaza, ezenza amacandelo ophazamiseko lwe-electromagnetic achaphazelekayo ziinjineli kunye neengcali.Elona xesha liphezulu le-EMI, elikwabizwa ngokuba yi-EMI yokuhambisa i-bandwidth, ngumsebenzi wexesha lokunyuka kwesignali (hayi i-frequency signal).
Ixabiso ngalinye le-voltage kwisekethe lihambelana nomsinga othile, kwaye i-current nganye ihambelana ne-voltage.Xa imveliso ye-IC iguqulwa ukusuka kwingqiqo ephezulu ukuya kwingqiqo ephantsi okanye ukusuka ephantsi ngokwengqiqo ukuya phezulu ngokwengqiqo, la mandla ombane wesignali kunye nemisinga yesignali ivelisa iindawo zombane kunye nemagnethi, kwaye i-frequency ephezulu yale mimandla yombane kunye nemagnethi yi-bandwidth yothumelo.Amandla ombane kunye nemagnethi kunye nomlinganiselo wemitha yangaphandle, kungekuphela nje umsebenzi wexesha lokunyuka komqondiso, kodwa kuxhomekeke kumgangatho we-capacitor kunye nokulawulwa kwe-inductance phakathi kwejelo lomqondiso ukusuka kumthombo ukuya kwindawo yomthwalo, ngoko ke iPCB. umthombo uphawu ibekwe, kwaye umthwalo ibekwe kwezinye iisekethe ezihlangeneyo, isekethe edibeneyo kwibhodi yesekethe inokuba okanye ingabikho kwi-PCB.Ukuze ulawule ngokufanelekileyo ukuphazamiseka kwe-electromagnetic, kuyimfuneko ukuba unganikeli ingqalelo kuphela kwi-capacitance kunye ne-inductance, kodwa kunye ne-capacitance kunye ne-inductance ekhoyo kwi-PCB.Njengoyilo lwePCB, uyilo lwephakheji ye-IC lunokuba nempembelelo enkulu kwi-EMI.
Iiphakheji zesekethe ezidityanisiweyo zihlala zibandakanya i-silicon-based chip, i-PCB encinci yangaphakathi, kunye nephedi ye-solder.I wafer yesilicon ifakwe kwi wafer encinci ye-PCB 64 yesilicon ngokubophelela uqhagamshelwano phakathi komgca kunye ne pad, inokudityaniswa ngokuthe ngqo kwipakethe encinci yePCB enolwazi lomqondiso kunye namandla kwi-silicon wafer kunye noqhagamshelo phakathi kokuhambelanayo. izikhonkwane kwiphakheji, ukuze uqonde isibonakaliso kunye ne-node yamandla ye-silicon wafer ngaphandle.
Ukuvuza kwe-Capacitor (i-impedance ephantsi ye-insulation) yolona hlobo luqhelekileyo lokungaphumeleli, kwaye izizathu zalo eziphambili zinokwahlulwa zibe yimiba yangaphakathi kwinkqubo yokuvelisa kunye nezinto zangaphandle kwinkqubo yokuvelisa.Izizathu zokuvuza kwe-chip capacitor zihlulwe zibe ziindidi ezimbini, enye yingxaki yangaphakathi, kwaye enye yingxaki yangaphandle.
Okokuqala, izinto zangaphakathi
1. Ilize
Umgodi owenziwe ngumphunga wezinto zangaphandle kwi-capacitor ngexesha le-sintering.I-Voids inokukhokelela kwiisekethe ezimfutshane phakathi kwe-electrode kunye nokusilela kombane okunokwenzeka.I-voids enkulu ayinciphisi i-IR kuphela, kodwa inciphisa amandla asebenzayo.Xa inikwe amandla, kunokwenzeka ukuba kubangele ukushisa kwendawo kwi-cavity ngenxa yokuvuza, ukunciphisa ukusebenza kwe-insulation medium ye-ceramic, ukunyusa ukuvuza, okubangelwa ukuqhekeka, ukuqhuma, ukutshisa kunye nezinye izinto.
2. Sintering Crack
Ukuqhekeka kwe-sintering ngokuqhelekileyo kubangelwa ukupholisa ngokukhawuleza kwinkqubo ye-sintering kwaye kubonakala kwicala elithe nkqo kumphetho we-electrode.
3. Ukupheliswa
I-Stratification idla ngokuveliswa emva kokupakishwa, ngenxa yokungacoceki kakuhle okanye ukukhutshwa kwerabha, ukungonelanga kwe-sintering, umoya oxubeneyo phakathi kweengqimba, ukungcola kwangaphandle kunye nokuqhekeka okuthe tye.Kwakhona kunokwenzeka ukuba ukwandiswa kwe-thermal yezinto ezahlukeneyo emva kokuxuba akuhambelani.
Okwesibini, izinto zangaphandle
1. Ukothuso lobushushu
Umothuko we-thermal wenzeka ikakhulu kwi-soldering ye-wave, utshintsho olukhawulezayo kwiqondo lobushushu, olukhokelela kwiintanda phakathi kwee-electrodes ngaphakathi kwe-capacitor, ngokubanzi kufuneka zifunyanwe ngomlinganiselo, ukujonga emva kokusila, ngokuqhelekileyo iintanda ezincinci, kufuneka kusetyenziswe iglasi yokukhulisa ukuqinisekisa, iimeko ezimbalwa kuya kubakho iintanda ezibonakalayo.
Kule meko, kucetyiswa ukuba usebenzise i-welding ye-reflow, okanye unciphise utshintsho lweqondo lokushisa ngexesha lokutshatyalaliswa kwamaza (akukho ngaphezu kwe-4 ~ 5 ° C / s), kwaye ulawule ubushushu obungaphantsi kwe-60 ° C ngaphambi kokucoca ipaneli.
2. Uxinzelelo lwangaphandle lomatshini
Ngenxa yokuba icandelo eliphambili le-MLCC liyi-ceramic, ekubekweni kwamacandelo, iiplati ezincinci, izikrufu kunye nezinye iinkqubo, kunokwenzeka ukuba uxinzelelo lomatshini lukhulu kakhulu ukuba lubangele ukuba i-capacitor icinezelwe kwaye iphulwe, okubangelwa ukungaphumeleli kokuvuza.Ngeli xesha, ukuqhekeka ngokuqhelekileyo ku-oblique, ukuqhekeka ukusuka kwi-junction ye-terminal kunye nomzimba we-ceramic.
3. Ukufuduka kwe-solder
I-Welding kwindawo yomswakama ophezulu inokukhokelela ekufudukeni kwe-solder kuzo zombini iziphelo ze-capacitor, kwaye xa idibene kunye, ukuvuza kunye nokujikeleza okufutshane kunokukhokelela.
1. Kukho iibrendi ezigunyazisiweyo ngaphezulu
Logama nje uqhelene mos ityhubhu ezifana amacandelo ombane iimveliso, uya kwazi ukuba kukho ezininzi ezaziwayo-kakuhle brand kumazwe angaphandle, kwaye xa ukuqonda mos abenzi ityhubhu, Kakade ke, kufuneka kuqala ingqalelo ukuba abavelisi 'amazwe aphesheya cooperative brand. zanele.I-Mingary Technology iye yaba nenani leebrendi zokungenisa iziqinisekiso zogunyaziso olusemthethweni kwiminyaka emininzi eyadlulayo, ngoko ke umenzi uqokelele iminyaka elishumi yamava okubonelela.
2, inokunika izisombululo ezifanelekileyo
Ngamanye amaxesha abathengi bahlangabezana neengxaki ngokwabo, ngenxa yokuba abanalo amava aneleyo, akucaci ukuba uyisombulula njani ngcono, kodwa abavelisi beetyhubhu ze-mos bahluke, kwaye ngokuqinisekileyo baya kucaca ngakumbi ukuba zeziphi izisombululo ezinokuvumela abathengi ukuba bathenge iimveliso ezifanelekileyo.Ngethuba nje imfuno iphakanyisiwe, umenzi unokukhawuleza ukunika isisombululo esifanelekileyo.
3. Ungazikhathazi ngokunqongophala kwezinto
Ngalo lonke ixesha unokusebenzisana nabavelisi beearhente eziqhelekileyo, kungakhathaliseki ukuba zingaphi iimveliso ozifunayo ukuthenga, okanye iimodeli zemveliso ezinqabileyo, unokuvumela abavelisi ukuba basombulule iingxaki ngokubonelela okutyebileyo kunye neemodeli ezipheleleyo kunye nezinye izibonelelo.Njengoko isitokhwe sanele, ngokude nje ukuba isitokhwe siqinisekisiwe, iimpahla zingathunyelwa ngokukhawuleza.
Jonga apha, kufuneka sazi ukuba yiyiphi i-mos abakhiqizi be-tube abachwephesha kwaye banokwethenjelwa, enyanisweni, ngokude nje amandla abavelisi, banokugcina ubudlelwane bexesha elide kunye nabo.Ngenxa yokuba umgangatho wenkonzo ulungile kakhulu, ngoko ke ukuba ufumana ingxaki ngemveliso, unokuqhagamshelana nabasebenzi ngexesha lokujongana nayo.
Ngophuhliso olukhawulezayo lwamacandelo, kukho imifuziselo eyahlukeneyo ye-triode, kwaye iiparamitha ezisisiseko zemodeli nganye ye-triode zahlukile, kwaye zeziphi izilumkiso ekufuneka ziqwalaselwe ekuthengeni i-triode, kunye nendlela yokwazi iiparamitha ezisisiseko zetriode. .Makhe sithethe ngayo namhlanje.
Khetha i-triode kufuneka ilawule iiparamitha ezisisiseko zetriode, kwaye kufuneka ilawule uphawu lwefrikhwensi, ingxolo kunye namandla emveliso yetriode.
1. Ukuphindaphindwa kophawu fT.Ngokunyuka kwamandla okuphuma, umthamo omkhulu wokusebenza we-triode unokuncitshiswa, kwaye i-frequency fT ehambelana ne-β=1 ibizwa ngokuba yi-frequency frequency fT ye-triode.Ekuqulunqweni nasekuveliseni iisekethe ze-elektroniki, i-triode kwi-frequency ephezulu, i-frequency ephakathi, i-oscillator kunye neminye imigca kufuneka ikhethwe nge-capacitance encinci ye-electrode, kunye ne-frequency frequency Fr kufuneka ibe ngama-3 ukuya kwayi-10 amandla aphumayo.Ukuba imakrofoni engenazingcingo yenziwe, i-frequency ye-triode ye-9018 kufuneka ithathwe ngaphezu kwe-600NHz.
2. Ukukhethwa kwengxolo kunye namandla aphumayo.Xa usenza i-low-frequency amplifiers, iiparitha eziphambili ezifana nengxolo kunye negunya lokuphuma kwe-triode zithathelwa ingqalelo.Kucetyiswa ukuba ukhethe ityhubhu ene-Iceo encinci yokungena yangoku, kuba i-Iceo encinci, ingcono ukuthembeka kweqondo lokushisa kwe-amplifier.Kwisekethe ephantsi yokukhutshwa, ukuba i-tube encinci yokukhupha amandla okuncedisa i-pull-pull ikhethiwe, amandla okukhutshwa kwelahleko kufuneka abe ngaphantsi okanye alingane ne-1W, i-electrode yangoku enkulu kufuneka ibe ngaphantsi okanye ilingane ne-1.5A, kunye nobuninzi amandla ombane okusebenza kwicala elichaseneyo yi-50 ~ 300V.
