Zaɓi MOSFET daidai don direban kewayawa wani muhimmin sashi ne naMOSFET Zaɓin ba shi da kyau zai shafi kai tsaye ga ingancin da'irar gabaɗaya da kuma farashin matsalar, abin da ke gaba mun faɗi kusurwa mai ma'ana don zaɓin MOSFET.
1, N-channel da zaɓin tashar P
(1), A cikin da'irori gama gari, lokacin da MOSFET ke ƙasa kuma aka haɗa kaya zuwa wutar lantarki, MOSFET ta ƙunshi ƙaramin jujjuyawar gefen wuta. A cikin madaidaicin gefen wuta, ya kamata a yi amfani da MOSFET ta tashar N-tashar, saboda la'akari da ƙarfin lantarki da ake buƙata don kashe ko kunna na'urar.
(2), lokacin da MOSFET ta haɗa da bas ɗin kuma nauyin ya kasance ƙasa, za a yi amfani da babban ƙarfin wutan gefe. P-tasharMOSFETs yawanci ana amfani da su a cikin wannan topology, kuma don la'akari da ƙarfin lantarki.
2, son zabar daidaiMOSFET, Wajibi ne don ƙayyade ƙarfin lantarki da ake buƙata don fitar da ƙimar wutar lantarki, da kuma a cikin ƙirar hanya mafi sauƙi don aiwatarwa. Lokacin da ƙimar ƙarfin lantarki ya fi girma, na'urar za ta kasance a zahiri tana buƙatar farashi mafi girma. Don ƙirar šaukuwa, ƙananan ƙarfin lantarki sun fi kowa, yayin da don ƙirar masana'antu, ana buƙatar ƙarfin lantarki mafi girma. Dangane da ƙwarewar aiki, ƙimar ƙarfin lantarki yana buƙatar girma fiye da akwati ko ƙarfin lantarki na bas. Wannan zai samar da isasshen kariya ta tsaro ta yadda MOSFET ba za ta gaza ba.
3, biye da tsarin tsarin kewayawa, ƙimar halin yanzu ya kamata ya zama matsakaicin halin yanzu wanda kaya zai iya jurewa a duk yanayi, wanda kuma ya dogara ne akan amincin abubuwan da suka dace don la'akari.
4. A ƙarshe, an ƙaddara aikin sauya MOSFET. Akwai sigogi da yawa waɗanda ke shafar aikin sauyawa, amma mafi mahimmanci shine ƙofar / magudanar ruwa, kofa / tushe da magudanar ruwa / iyawar tushen. Waɗannan ƙarfin ƙarfin suna haifar da asarar sauyawa a cikin na'urar saboda dole ne a caje su yayin kowane canji.
Lokacin aikawa: Mayu-20-2024
