Thyristor Incazelo

Izindinganiso ze-1.IEC zazisetshenziselwa ukuveza i-thyristor, ukusebenza kwe-diode, kufaka phakathi amapharamitha ayishumi, kodwa abasebenzisi bavame ukusebenzisa ishumi noma ngaphezulu, lesi sihloko kafushane i-thyristor / diode yemingcele eyinhloko.
2.I-Average Forward Current IF (AV) (rectifier) ​​/ Mean on-state current IT (AV) (Thyristor): ichazwa ngokwezinga lokushisa likasinki wokushisa noma izinga lokushisa eliyikesi elingu-TC THS uma livunyelwa ukuthi ligeleze kuhhafu we-sine omkhulu wedivayisi. wave isilinganiso samanje.Kuleli qophelo, izinga lokushisa lokuhlangana selifinyelele izinga lokushisa eliphezulu elivumelekile Tjm.Imanuwali yomkhiqizo wenkampani ye-LMH inikeza isimo samanje esifanele esihambisana nezinga lokushisa le-THS likasinki wokushisa noma amanani ezinga lokushisa ekesi e-TC, umsebenzisi kufanele asekelwe kumanje okukusimo sangempela, nezimo ezishisayo ukuze akhethe imodeli efanelekile yedivayisi.
3.Forward impande isho isikwele samanje IF (RMS) (rectifier) ​​/ On-state RMS Current IT (RMS) (Thyristor): ichazwa ngokwezinga lokushisa likasinki wokushisa noma izinga lokushisa lekesi elingu-TC THS uma livunyelwe ukugeleza kubukhulu bedivayisi. inani lamanje elisebenzayo.Uma isetshenziswa, umsebenzisi uzoqinisekisa ukuthi kunoma yiziphi izimo, i-RMS yamanje egeleza ku-temperature yekesi ledivayisi ayidluli inani elihambisanayo lempande yencazelo yesikwele senani lamanje.
4.Surge yamanje IFSM (rectifier), ITSM (SCR)
Imelela umsebenzi ezimeni ezingavamile, idivayisi ingamelana namanani amanje okulayishwa kakhulu aphezulu.10ms uhhafu wamagagasi we-sine anenani eliphakeme i-LMH elinikezwa yona enanini lamanje le-inrush lemanuwali yomkhiqizo izinga lokushisa eliphezulu elivumelekile lendawo ehlanganayo ledivayisi lingaphansi kuka-80% VRRM esetshenziswa ngaphansi kwemibandela yamanani okuhlola.Ngesikhathi sokuphila kwedivayisi ingamelana ne-inrush current ikhawulelwe ngenani labasebenzisi abasebenzayo okufanele bazame ukugwema ukugcwala.
5.Izinga eliphezulu elingaphindaphindiyo lamandla kagesi we-VDSM / I-VRSM: isho ukuthi i-thyristor noma i-rectifier diode ivimbela i-voltage enqamuka kakhulu, ngokuvamile ngokuhlolwa kweshayela okukodwa ukuze kuvinjelwe ukulimala kudivayisi.Umsebenzisi ekuhlolweni noma ekusetshenzisweni, uzovinjelwa kugesi osetshenziswa kudivayisi, ukugwema ukulimala ocingweni.
6.I-voltage ephindaphindayo ephezulu ye-off-state i-VDRM / I-voltage ephindaphindayo ephezulu ehlehlayo i-VRRM: isho ukuthi idivayisi isesimweni sokuvinjwa, i-off-state kanye ne-reverse ingamelana nomkhawulo ophezulu wevoltheji ophindaphindayo.Ngokuvamile idivayisi ayiphindi uphawu lwe-voltage engu-90% (imishini yamandla kagesi angaphindi ithatha ama-voltage angu-100 amakwe kancane).Abasebenzisi abasetshenziswayo bazoqinisekisa ukuthi kunoma yisiphi isimo, akufanele bavumele idivayisi ukuthi imelane nevoltheji yangempela idlula i-off-state yayo kanye ne-Repetitive peak reverse voltage.
7.Isilinganiso esiphezulu esiphindaphindayo esingekho esimweni (ukuvuza) i-IDRM yamanje / Ukuhlehla kwesilinganiso esiphezulu esiphindaphindayo (ukuvuza) i-IRRM yamanje
I-Thyristor isesimweni sokuvinjwa, ukuze imelane nevoltheji ephindaphindayo ephindaphindayo ye-off-state i-VDRM kanye ne-VRRM I-repetitive peak reverse voltage, ukugeleza okuya phambili nokuhlehlayo phakathi kwengxenye ephezulu yokudonsa kwamandla.Le parameter ivumela idivayisi ukuthi isebenze ngaphansi kwezinga lokushisa eliphezulu le-Junction Tjm elilinganiselwe.
8. I-voltage esezingeni eliphezulu ye-VTM (SCR) / I-voltage eya phambili ephezulu VFM (isilungisi kabusha)
Ibhekisela kudivayisi nge-IFM yamanje ephezulu enqunywe kusengaphambili (isilungisi) noma isimo samanje esiphezulu se-ITM (SCR) i-voltage ephezulu, eyaziwa nangokuthi ukwehla kwamandla kagesi aphezulu.Le pharamitha ikhombisa ngokuqondile izici zokulahleka kwesimo sedivayisi, okuthinta umthamo wesilinganiso wamanje wedivayisi.
Idivayisi ngamavelu ahlukene amanje ngaphansi kwe-on-state (phambili) i-peak voltage ingalinganiswa ne-threshold voltage kanye ne-slope resistor, yathi:
VTM = VTO + rT * ITM VFM = VFO + rF * IFM
Qalisa inkampani yase-Austrian kumanuwali yomkhiqizo wemodeli ngayinye kunikezwa ku-voltage ephezulu yedivayisi ekusimo (phambili) kanye ne-threshold voltage kanye nokumelana nomthambeka, izidingo zomsebenzisi, ungahlinzeka nge-voltage ye-threshold yedivayisi kanye nomthambeko wokumelana okulinganiselwe. inani.
9.Isikhathi sokuvala esishintshiwe sesiyingi (SCR)
Ngaphansi kwezimo ezishiwo, igagasi eliyinhloko le-thyristor phambili lehla ngaphezu kweziro, ukusuka ku-zero ukuwela ukuze ukwazi ukumelana ne-voltage yento esindayo isetshenziswa esikhundleni sokuvula isikhawu sesikhathi esincane.Inani lesikhathi sokuvala i-Thyristor linqunywa ezimweni zokuhlola, Qalisa inkampani yase-Austrian ekhiqizwe ngokushesha, amadivayisi we-thyristor anemvamisa ephezulu anikeza isikhathi sokuvala senani ngalinye elilinganisiwe, alichazwanga ikakhulukazi, izimo ezihambisanayo zimi kanje:
I-ITM-state peak current ilingana nedivayisi ye-ITAV;
Izinga lokwehla lamanje kusimo di / dt = -20A/μs;
Isilinganiso sokunyuka kwamandla kagesi esindayo dv / dt = 30A/μs;
I-Reverse voltage VR = 50V;
Izinga lokushisa lokuhlangana Tj = 125 ° C.
Uma udinga izimo ezithile zohlelo lokusebenza ngamavelu okuhlola angasebenzi ngesikhathi, ungasicela.
10. Izinga elibalulekile lokukhuphuka kwe-on-state current di/dt (SCR)
Ibhekisela ku-thyristor kusukela ekuvimbeni isimo kuya esimweni, i-thyristor ingakwazi ukumelana nezinga eliphezulu lokukhuphuka kwamandla ombuso.Idivayisi ingamelana nesimo samanje sesimo sezulu Izinga elibalulekile lokunyuka kwe-di / dt gate trigger isimo ngomthelela omkhulu, ngakho-ke sincoma ngokuqinile ukuthi abasebenzisi basebenzise i-trigger yohlelo lokusebenza, i-trigger pulse amplitude yamanje: IG ≥ 10IGT;isikhathi sokukhuphuka kwenhliziyo: tr ≤ 1μs.
10. Izinga elibalulekile lokunyuka kwe-voltage ye-off-state dv / dt
Ngaphansi kwezimo ezishiwo, ngeke kubangele ukuthi i-thyristor isuke endaweni evaliwe iye esimweni iguqule isivinini esivunyelwe sokunyuka kwamandla kagesi oya phambili.Qalisa imanuwali yomkhiqizo wenkampani yase-Austrian inikeza inani elincane kakhulu kuzo zonke izinhlobo ze-thyristor dv / dt, lapho umsebenzisi we-dv / dt enezidingo ezikhethekile, angenziwa uma ku-oda.
11.I-voltage ye-trigger yesango i-VGT / Isango licupha i-IGT yamanje
Ngaphansi kwezimo ezicacisiwe, ukwenza isimo sokuvala i-thyristor nge-voltage yesango elincane elidingekayo kanye nesango lamanje.I-Thyristor ivule phakathi namahora okuvula, ukulahlekelwa kokuvula nokunye ukusebenza okushukumisayo ngokufaka amandla esignali yokucupha esangweni kumthelela omkhulu.Uma ekusetshenzisweni kwe-IGT ebucayi kakhulu ukuze kuqalise i-thyristor, i-thyristor ngeke ikuvumele ukuthi ithole izici ezinhle zokuvula, kwezinye izimo ize ibangele ukwehluleka ngaphambi kwesikhathi noma ukulimala kudivayisi.Ngakho-ke kunconywe ukuthi uhlelo lokusebenza lomsebenzisi lisebenzisa imodi yokucupha eqinile, i-trigger pulse amplitude yamanje: IG ≥ 10IGT;isikhathi sokukhuphuka kwenhliziyo: tr ≤ 1μs.Ukuqinisekisa ukusebenza okuthembekile kwedivayisi, i-IG kumele ibe nkulu kakhulu kune-IGT.
12.Crusts ukumelana Rjc
Ibhekisela kudivayisi ngaphansi kwezimo ezithile, idivayisi igeleza isuka lapho kuhlangana khona indawo iye esimweni sokukhuphuka kwezinga lokushisa okukhiqizwa nge-watt ngayinye.Ukumelana nama-crust kubonisa umthamo wokushisa wedivayisi, le pharamitha inomthelela oqondile ekusebenzeni okulinganiselwe kwedivayisi.Qalisa imanuwali yomkhiqizo wenkampani yase-Austrian yedivayisi yokupholisa ezinhlangothini eziyisicaba ikhombisa ukumelana nokushisa okuzinzile kwamamojula wamandla we-semiconductor, kunikeza ukupholisa okuhlangothini olulodwa ukumelana nokushisa.Abasebenzisi kufanele baqaphele ukuthi ingxenye eyisicaba yemiphumela eshisayo ye-crust ethintwa ngokuqondile yizimo zokufakwa, kuphela ngokuya ngemanuwali yokufakwa kwamandla akhuphukayo anconyiwe ukuze kuqinisekiswe ukumelana okushisayo kwedivayisi ukuze kuhlangatshezwane nezidingo zoqweqwe.


Isikhathi sokuthumela: Oct-21-2020