Monga zinthu zosinthira, MOSFET ndi IGBT nthawi zambiri zimawoneka pamabwalo apakompyuta. Amafanananso ndi mawonekedwe komanso mawonekedwe ake. Ndikukhulupirira kuti anthu ambiri amadabwa chifukwa chake madera ena amafunikira kugwiritsa ntchito MOSFET, pomwe ena amatero. IGBT?
Kodi pali kusiyana kotani pakati pawo? Ena,Olukeyadzayankha mafunso anu!
Kodi aMOSFET?
MOSFET, dzina lonse lachi China ndi metal-oxide semiconductor field effect transistor. Chifukwa chipata cha gawo ili la transistor chimasiyanitsidwa ndi chosanjikiza, chimatchedwanso insulated gate field effect transistor. MOSFET akhoza kugawidwa mu mitundu iwiri: "N-mtundu" ndi "P-mtundu" malinga ndi polarity ake "channel" (ntchito chonyamulira), kawirikawiri amatchedwanso N MOSFET ndi P MOSFET.
MOSFET yokha ili ndi diode yake ya parasitic, yomwe imagwiritsidwa ntchito kuletsa MOSFET kuti isapse pamene VDD ili ndi mphamvu zambiri. Chifukwa kuchulukitsitsa kusanachitike kuwononga MOSFET, diode imaphwanya kaye ndikuwongolera mphamvu yayikulu pansi, potero kuletsa MOSFET kuti isawotchedwe.
Kodi IGBT ndi chiyani?
IGBT (Insulated Gate Bipolar Transistor) ndi chipangizo cha semiconductor chopangidwa ndi transistor ndi MOSFET.
Zizindikiro zozungulira za IGBT sizinagwirizanebe. Pojambula chithunzi chojambula, zizindikiro za triode ndi MOSFET nthawi zambiri zimabwereka. Panthawiyi, mutha kuweruza ngati ndi IGBT kapena MOSFET kuchokera pachitsanzo cholembedwa pazithunzi.
Nthawi yomweyo, muyenera kusamala ngati IGBT ili ndi diode ya thupi. Ngati sichinalembedwe pachithunzichi, sizikutanthauza kuti palibe. Pokhapokha ngati deta yovomerezeka ikunena mosiyana, diode iyi ilipo. Diode ya thupi mkati mwa IGBT si parasitic, koma imakhazikitsidwa mwapadera kuti iteteze zosinthika zosalimba kupirira voteji ya IGBT. Imatchedwanso FWD (freewheeling diode).
Mapangidwe amkati mwa awiriwa ndi osiyana
Mitengo itatu ya MOSFET ndi gwero (S), drain (D) ndi chipata (G).
Mitengo itatu ya IGBT ndi otolera (C), emitter (E) ndi chipata (G).
IGBT imapangidwa powonjezera gawo lowonjezera pakukhetsa kwa MOSFET. Mapangidwe awo amkati ndi awa:
Magawo ogwiritsira ntchito awiriwa ndi osiyana
Zomangamanga zamkati za MOSFET ndi IGBT ndizosiyana, zomwe zimatsimikizira magawo awo ogwiritsira ntchito.
Chifukwa cha kapangidwe ka MOSFET, nthawi zambiri imatha kupeza mphamvu yayikulu, yomwe imatha kufika ku KA, koma mphamvu yamagetsi yanthawi zonse siyikhala yolimba ngati IGBT. Magawo ake akuluakulu ogwiritsira ntchito ndikusintha magetsi, ma ballast, kutentha kwapang'onopang'ono, makina owotcherera othamanga kwambiri, zida zamagetsi zolumikizirana ndi magawo ena opangira magetsi othamanga kwambiri.
IGBT ikhoza kupanga mphamvu zambiri, zamakono ndi magetsi, koma mafupipafupi sali okwera kwambiri. Pakalipano, kuthamanga kwamphamvu kwa IGBT kumatha kufika 100KHZ. IGBT imagwiritsidwa ntchito kwambiri pamakina owotcherera, ma inverters, ma frequency converters, electroplating electrolytic power supply, ultrasonic induction heaters ndi zina.
Zinthu zazikulu za MOSFET ndi IGBT
MOSFET ali ndi makhalidwe a impedance mkulu athandizira, mofulumira kusintha liwiro, wabwino matenthedwe bata, voteji kulamulira panopa, etc. Mu dera, angagwiritsidwe ntchito ngati amplifier, lophimba pakompyuta ndi zolinga zina.
Monga mtundu watsopano wa chipangizo chamagetsi cha semiconductor, IGBT ili ndi mawonekedwe a kulowetsedwa kwakukulu, kutsika kwa magetsi ogwiritsira ntchito mphamvu, kuwongolera kosavuta, kukana kwamagetsi, ndi kulolerana kwakukulu kwamakono, ndipo yakhala ikugwiritsidwa ntchito kwambiri pamabwalo osiyanasiyana amagetsi.
Dera loyenera lofanana la IGBT likuwonetsedwa pachithunzi pansipa. IGBT kwenikweni ndi kuphatikiza kwa MOSFET ndi transistor. MOSFET ili ndi vuto la kukana kwambiri, koma IGBT imagonjetsa kuperewera kumeneku. IGBT idakali ndi mphamvu zochepa pamagetsi apamwamba. .
Nthawi zambiri, mwayi wa MOSFET ndikuti ili ndi mawonekedwe abwino kwambiri ndipo imatha kugwira ntchito pafupipafupi mazana a kHz mpaka MHz. Choyipa chake ndi chakuti pa-resistance ndi yayikulu ndipo kugwiritsa ntchito mphamvu kumakhala kwakukulu pamagetsi apamwamba komanso apamwamba kwambiri. IGBT imachita bwino pamayendedwe otsika komanso mphamvu zambiri, zokhala ndi zopinga zazing'ono komanso zoyimilira kwambiri.
Sankhani MOSFET kapena IGBT
Mudera, kusankha MOSFET ngati chubu chosinthira mphamvu kapena IGBT ndi funso lomwe mainjiniya nthawi zambiri amakumana nawo. Ngati zinthu monga mphamvu yamagetsi, zamakono, ndi kusintha kwadongosolo zimaganiziridwa, mfundo zotsatirazi zikhoza kufotokozedwa mwachidule:
Nthawi zambiri anthu amafunsa kuti: "Kodi MOSFET kapena IGBT ndiyabwino?" Ndipotu, palibe kusiyana kwabwino kapena koipa pakati pa ziwirizi. Chofunika kwambiri ndikuwona momwe ntchito yake ikugwiritsidwira ntchito.
Ngati mudakali ndi mafunso okhudza kusiyana kwa MOSFET ndi IGBT, mutha kulumikizana ndi Olukey kuti mumve zambiri.
Olukey makamaka amagawira WINSOK sing'anga ndi otsika voteji mankhwala MOSFET. Zogulitsa zimagwiritsidwa ntchito kwambiri m'makampani ankhondo, ma board oyendetsa a LED/LCD, ma board driver, kuthamangitsa mwachangu, ndudu zamagetsi, zowunikira ma LCD, magetsi, zida zazing'ono zapakhomo, mankhwala azachipatala, ndi zinthu za Bluetooth. Masikelo amagetsi, zamagetsi zamagalimoto, zinthu zama network, zida zapakhomo, zotumphukira zamakompyuta ndi zinthu zosiyanasiyana zama digito.
Nthawi yotumiza: Dec-18-2023
