Ezinye izilumkiso zokunikela ingqalelo ekusebenziseni imibhobho yeMOS emsebenzini

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - 휴대용 전원소 공급업체

Inkqubela phambili yoluntu ayinakwahlulwa kuzo zonke iinkalo zobomi, kwaye ukuhlaziywa kweemveliso ezahlukeneyo ze-elektroniki akuyi kuvula imizamo yomyili wethu. Enyanisweni, abantu abaninzi abayi kuqonda ukubunjwa kweemveliso ze-elektroniki, ezifana ne-MOS. Umbhobho.

ityhubhu ye-MOS ibandakanyeka kwi-conductive evela kuninzi lwabathwali, abakwabizwa ngokuba yi-single-pole transistors. Iyeyezixhobo zokulawula umbane we-semiconductor. Inokumelana nokufaka okuphezulu (10 ^ 7 ~ 10 ^ 12Ω), ingxolo ephantsi, ukusetyenziswa kwamandla aphantsi, uluhlu olukhulu oluguquguqukayo, ukudibanisa okulula, akukho nto yesibini yokuphuka, ububanzi bomsebenzi okhuselekileyo, njl.

, ngoku i-bipolar transistor kunye ne-Power transistor enamandla okhuphisana naye. I-MOS tubular diode (eyaziwa ngokuba yi-parasitic diode) efunyenwe kwisixhobo esisodwa se-tube ye-MOS, kodwa akukho kwisekethe edibeneyo. I-diode ingasetyenziselwa ukukhuselwa umva kunye nokuqhubekeka kwe-drive ephezulu yangoku kunye nomthwalo we-inductive.

Ngokuqhelekileyo, ukuhla koxinzelelo lwangaphambili malunga ne-0.7-1V. Ekubeni i-diode ikhona, isixhobo se-MOS asikwazi ukuqonda nje ukusetyenziswa kokutshintsha kwisekethe.

Ngokomzekelo, kwisekethe yokutshaja, ukutshaja kugqityiwe. Emva kokuqhawula umbane, ibhetri iya kubuyisela umva. Izilumkiso zokusebenzisa i-MOS (1) Ukuze kusetyenziswe ngokukhuselekileyo iityhubhu ze-MOS, ixabiso elilinganiselweyo lamandla ayo okutshatyalaliswa, umbane ophezulu we-drain-source voltage, i-voltage ephezulu yesango, kunye nobuninzi bangoku awugqithiswanga kuyilo lwesekethe.

(2) Xa usebenzisa iindidi ezahlukeneyo ze-MOS transistors, kufuneka ziqhagamshelwe kwisekethe ngokuhambelana ngokungqongqo kunye ne-bias efunekayo, kwaye kufuneka zihlawule ingqalelo kwi-bias polarity ye-MOS transistors. Ngokomzekelo, kukho i-PN junction phakathi komthombo kunye ne-drain ye-tube ye-MOS, kwaye isango lombhobho we-N-channel alikwazi ukucinezelwa. Isango lombhobho we-p-channel alikwazi ukuchasana ngokungalunganga, kwaye olu hlobo lokutyhala.

(3) Ekubeni i-impedance yegalelo ye-MOSMOS transistor iphezulu kakhulu, isikhonkwane kufuneka sibe mfutshane ngexesha lokuthutha kunye nokugcinwa, kwaye ukupakishwa kwekhaka lesinyithi kufuneka kusetyenziswe ukuthintela isango lokuqhekeka langaphandle elinokubakho. Kubalulekile ukuqaphela ukuba ityhubhu ye-MOSMOS ayinakufakwa kwibhokisi yeplastiki. Kungcono ukuyigcina kwibhokisi yentsimbi.

Ngexesha elifanayo, qaphela ukuchasana komswakama wombhobho. (4) Ukuze kuthintelwe ukuqhekeka kokungeniswa kwesango lombhobho we-MOS, zonke izixhobo zovavanyo, iibhentshi zokusebenza, isinyithi esine-soldering, kunye nesekethe ngokwayo kufuneka ibekwe kakuhle; xa welding, nceda udityaniswe kuqala. Ngaphambi kwesekethe yokudibanisa, isiphelo sombhobho kufuneka sifutshane komnye nomnye, kwaye i-short-circuit material isuswe emva kwe-welding; xa ityhubhu isuswa kwisakhelo sendibano, qinisekisa ukuba umzimba womntu usekelwe ngendlela efanelekileyo, umzekelo usebenzisa indandatho yomhlaba.

Ngokuqinisekileyo ungasebenzisa. Ukufudumeza kwegesi ephucukileyo yentsimbi yombane kukulungele ngakumbi ukuwelda ityhubhu ye-MOS ukuqinisekisa ukhuseleko; xa amandla engavalwanga, isibane sifakwe kwisekethe okanye ukusuka kwisiphaluka. Kuya kufuneka unikele ingqalelo kula manyathelo okhuseleko angasentla xa usebenzisa iMOS.

(5) Xa ufaka ityhubhu ye-MOS, nikela ingqalelo kwindawo yokufakela ukuphepha ukusondela kwinto yokuvelisa ubushushu; ukwenzela ukukhusela i-tube vibration, kuyimfuneko ukulungisa indlu yesibane. Xa i-pin lead lead igobile, ububanzi bayo kufuneka bube bukhulu kunobukhulu bengcambu ye-5 mm ukuthintela inaliti ukuba igobe kwaye ikhokelele ekuvuzeni komoya. (6) Xa usebenzisa i-VMOS, kufuneka kongezwe indawo yokucima ubushushu efanelekileyo.

Thatha i-VNF306 njengomzekelo, emva kokufaka i-140 × 140 × 4 (mm) i-radiator, amandla aphezulu anokufikelela kwi-30W. (7) Emva kokudibanisa ubuninzi beetyhubhu ngokuhambelanayo, ekubeni i-capacitance phakathi kwe-electrodes kunye ne-capacitance yokusabalalisa, iimpawu eziphezulu ze-frequency ze-amplifier zithotywe, kunye ne-high frequency parasitic oscillation ye-amplifier kulula ukwenzeka. Ibangelwa yingxelo.

Ngako oko, ngokuqhelekileyo akukho ngaphezu kwee-tubes ezi-4 ezidibeneyo ngokuhambelanayo, kwaye i-oscillation resistor ye-parasitic idibene nezantsi okanye isango lombhobho ngamnye. (8) I-voltage yomthombo wesango lombhobho we-MOS ayikwazi ukuguqulwa, enokugcinwa kwindawo evulekileyo. Xa ityhubhu ye-MOS yesango e-insulated ingasetyenziswanga, ngenxa yokumelana kwayo okuphezulu, i-electrode nganye kufuneka ibe mfutshane ukukhusela iindawo zombane zangaphandle.

Umonakalo kwisiphumo sombhobho. (9) Xa i-welding, i-casing yangaphandle ye-soldering iron kufuneka ixhotywe ngocingo lwangaphandle lwangaphandle ukukhusela umonakalo kwi-tube ngenxa yentsimbi yombane. Ngokubhekiselele kwixabiso elincinci le-welding, unokutshisa intsimbi ye-solder ngaphambi kwe-welding kwaye ukhuphe iplagi okanye ucime amandla.

Ngokukodwa, xa welding isango eligqunyiweyo MOS ityhubhu, ukuwelda kufuneka kwenziwe ngokulandelelana kwesango lomthombo wokuvuza, kwaye ukuwelda kufuneka kunqunyulwe. (10) Xa kuthengiswa ngentsimbi yokunyibilikisa eyi-25W, kufuneka ikhawuleze. Ukuba usebenzisa i-45 ~ 75W intsimbi yokuthambisa, sebenzisa i-tweezers ukucinezela iingcambu zephini ukunceda ukutshabalalisa ubushushu.

I-tube ye-MOS ingasetyenziselwa ukujonga umgangatho womgangatho wetyhubhu ngefayili yokumelana nemitha (jonga ukuchasana okulungileyo kunye nokubuyisela umva phakathi kwendawo nganye ye-PN kunye nokuchasana phakathi kwe-drain), kunye ne-insulated field field effect tube ayikwazi ukutshekishwa ukusetyenziswa kwe-multimeter, kufuneka isetyenziswe i-Tester. Ngaphezu koko, iindlela zexesha elifutshane ze-electrode nganye zinokususwa kuphela emva kokudibanisa umhloli. Xa uqhaqha, kufuneka uyifutshane, uze uyisuse.

Undoqo kukuthintela ucango ukuba lungadada. Isishwankathelo, qinisekisa ukusetyenziswa kokhuseleko lolawulo lwe-MOS, kuyimfuneko ukunikela ingqalelo kwiindlela ezahlukeneyo zokhuseleko ukuba zibe zintlobo-ntlobo, uninzi lwabachwephesha abachwepheshile, ngakumbi uninzi lwabantu abathanda i-elektroniki, kufuneka baqale ngokwemeko yabo yokwenyani, Thatha indlela ephathekayo, ekhuselekileyo nesebenzayo yokusetyenziswa kwetyhubhu ye-MOS. .