Thupi diode (yomwe nthawi zambiri imangotchulidwa ngati diode wamba, ngati mawu“thupi diode”sichimagwiritsidwa ntchito nthawi zambiri ndipo ingatanthauze mawonekedwe kapena kapangidwe ka diode yokha; Komabe, pazifukwa izi, timaganiza kuti amatanthauza diode muyezo) ndi MOSFET (Metal Oxide Semiconductor Field Effect Transistor) amasiyana kwambiri muzinthu zingapo. Pansipa pali kusanthula kwatsatanetsatane kwa kusiyana kwawo:
1. Matanthauzo Ofunika Kwambiri ndi Mapangidwe
- Diode: Diode ndi chipangizo cha semiconductor chokhala ndi ma electrode awiri, opangidwa ndi P-mtundu ndi N-mtundu wa semiconductors, kupanga PN mphambano. Zimangolola kuti zamakono ziziyenda kuchokera ku zabwino kupita ku mbali yolakwika (kutsogolo) pamene kutsekereza kusuntha kwa reverse (reverse bias).
- MOSFET: MOSFET ndi chipangizo cha semiconductor chachitatu chomwe chimagwiritsa ntchito mphamvu yamagetsi kuwongolera zomwe zilipo. Ili ndi chipata (G), gwero (S), ndi kukhetsa (D). Zomwe zilipo pakati pa gwero ndi kukhetsa zimayendetsedwa ndi magetsi a pachipata.
2. Mfundo Yogwira Ntchito
- Diode: Mfundo yogwirira ntchito ya diode imachokera kumayendedwe a unidirectional a PN junction. Pansi pa tsankho lakutsogolo, zonyamulira (mabowo ndi ma electron) amafalikira kudutsa PN mphambano kuti apange panopa; pansi pa zokondera, chotchinga chotheka chimapangidwa, cholepheretsa kuyenda kwapano.
- MOSFET: Mfundo yogwira ntchito ya MOSFET imachokera ku mphamvu yamagetsi. Pamene magetsi a pachipata amasintha, amapanga njira yoyendetsera (N-channel kapena P-channel) pamwamba pa semiconductor pansi pa chipata, kulamulira panopa pakati pa gwero ndi kukhetsa. Ma MOSFET ndi zida zoyendetsedwa ndi voteji, zomwe zimatuluka pakali pano kutengera mphamvu yamagetsi.
3. Makhalidwe Antchito
- Diode:
- Yoyenera kugwiritsa ntchito ma frequency apamwamba komanso otsika mphamvu.
- Imakhala ndi ma unidirectional conductivity, ndikupangitsa kuti ikhale gawo lofunikira pakuwongolera, kuzindikira, ndi kuwongolera ma voteji.
- Reverse breakdown voltage ndi gawo lofunikira kwambiri ndipo liyenera kuganiziridwa pamapangidwe kuti mupewe zovuta zina.
- MOSFET:
- Imakhala ndi mphamvu yolowera kwambiri, phokoso lochepa, kugwiritsa ntchito mphamvu zochepa, komanso kukhazikika kwamafuta.
- Oyenera mabwalo akuluakulu ophatikizika ndi zamagetsi zamagetsi.
- Ma MOSFET amagawidwa m'mitundu ya N-channel ndi P-channel, iliyonse yomwe imabwera m'njira zowonjezera komanso zochepetsera.
- Imawonetsa mawonekedwe okhazikika apano, pomwe pano imakhala yosasinthasintha m'dera la saturation.
4. Minda Yofunsira
- Diode: Imagwiritsidwa ntchito kwambiri pamagetsi, kulumikizana, ndi malo opangira magetsi, monga mabwalo owongolera, mabwalo owongolera ma voltage, ndi mabwalo ozindikira.
- MOSFET: Imagwira ntchito yofunika kwambiri pamabwalo ophatikizika, zamagetsi zamagetsi, makompyuta, ndi kulumikizana, zomwe zimagwiritsidwa ntchito ngati zinthu zosinthira, zokulitsa, komanso zoyendetsa.
5. Mapeto
Ma diode ndi ma MOSFET amasiyana pamatanthauzidwe awo, mapangidwe, mfundo zogwirira ntchito, mawonekedwe a magwiridwe antchito, ndi magawo ogwiritsira ntchito. Ma diode amagwira ntchito yofunika kwambiri pakuwongolera komanso kuwongolera ma voltage chifukwa cha machitidwe awo amtundu uliwonse, pomwe ma MOSFET amagwiritsidwa ntchito kwambiri m'mabwalo ophatikizika ndi zamagetsi zamagetsi chifukwa cha kulowerera kwawo kwakukulu, phokoso lochepa, komanso kugwiritsa ntchito mphamvu zochepa. Zigawo zonsezi ndizofunikira kwambiri paukadaulo wamakono wamagetsi, chilichonse chimapereka zabwino zake.
Nthawi yotumiza: Sep-18-2024
