Ƙarfe-oxide-semiconductor filin-tasirin transistor (MOSFETs) sun kawo sauyi ga masana'antar lantarki, sun zama abubuwan da ke cikin ko'ina a cikin kewayon da'irori. Yayin da aikinsu na farko shine sarrafawa da haɓaka siginar lantarki, MOSFETs kuma suna ɗaukar wani abu mai mahimmanci wanda ba a kula da shi akai-akai: diode na ciki. Wannan shafin yanar gizon yana zurfafa cikin rikitattun diodes na MOSFET, bincika halayensu, mahimmancin ƙirar da'ira, da yuwuwar aikace-aikace.
Bayyana MOSFET Jikin Diode
An haɗa shi a cikin tsarin MOSFET, diode na jiki shine mahaɗar parasitic na zahiri wanda ke samuwa tsakanin magudanar ruwa da yankuna. Wannan diode yana nuna kwararar halin yanzu unidirectional, yana barin halin yanzu ya wuce daga magudanar zuwa tushen amma ba akasin haka ba.
Muhimmancin Diode Jiki a Tsarin Da'ira
Diode na jiki yana taka muhimmiyar rawa a cikin aikace-aikacen kewayawa daban-daban, musamman a cikin wutar lantarki:
Freewheeling Diode: Lokacin kashe lokaci na MOSFET, diode na jiki yana gudanar da halin yanzu inductive daga kaya, yana hana hawan wutar lantarki da kare MOSFET daga lalacewa.
Juya Kariya na Yanzu: A cikin da'irori inda juyarwar halin yanzu ke damuwa, diode na jiki yana aiki azaman shamaki, yana hana halin yanzu komawa cikin MOSFET.
Snubber Diode: Diode jiki na iya aiki azaman diode snubber, yana watsar da makamashin da aka adana a cikin inductances na parasitic da kuma hana hawan wutar lantarki yayin sauya abubuwan da suka faru.
La'akari don MOSFET Jikin Diodes
Yayin da diode na jiki yana ba da fa'idodi na asali, yana da mahimmanci a yi la'akari da wasu al'amura a ƙirar kewaye:
Ƙarfin Juya Wutar Lantarki: Ma'aunin wutar lantarki na diode na jiki dole ne ya dace ko ya wuce matsakaicin jujjuyawar wutar lantarki don hana rushewa.
Karɓar Gaba na Yanzu: Ƙarfin gaba na diode na jiki ya kamata ya isa ya iya sarrafa kololuwar halin yanzu yayin tuki ko jujjuya yanayin yanayin motsi.
Saurin Canjawa: Gudun juyawa na diode na jiki, musamman a aikace-aikace masu girma, bai kamata ya gabatar da jinkiri ko asara ba.
Aikace-aikace na MOSFET Jikin Diodes
Jikin diode yana samun aikace-aikace a cikin kewayon da'irori daban-daban:
Masu Canza DC-DC: A cikin masu jujjuya buck, diode ɗin jiki yana aiki azaman diode mai walƙiya, yana kare MOSFET daga fiɗaɗɗen ƙarfin lantarki.
Da'irori Sarrafa Motoci: Diode ɗin jiki yana hana juyar da motsi na yanzu lokacin da motar ke birki ko haifar da baya EMF.
Kayan Wutar Lantarki: A cikin samar da wutar lantarki, diode na jiki yana kare MOSFET yayin sauya masu wucewa kuma yana hana juyar da halin yanzu daga kaya.
Kammalawa
MOSFET jiki diode, sau da yawa ba a kula da shi, yana taka muhimmiyar rawa a ƙirar da'ira, musamman a cikin lantarki. Fahimtar halayensa, mahimmancinsa, da iyakancewa yana da mahimmanci don zayyana ƙaƙƙarfan da'irori masu inganci, masu inganci, amintattu. Kamar yadda fasahar MOSFET ta ci gaba, mahimmancin diode na jiki yana yiwuwa ya ci gaba, yana tabbatar da ci gaba da dacewarsa a cikin duniyar da ke ci gaba da haɓakawa na lantarki.
Lokacin aikawa: Juni-07-2024