Core Ferrite - ntoni na? Indlela yokwenza umsesane ferrite ngezandla zakho?

Ngamnye kuthi Wabona iintambo zombane okanye iingcingo adibanayo izixhobo ze-elektroniki iisilinda amancinci. Ke ingafunyanwa kwi ezininzi iinkqubo zekhompyutha eqhelekileyo, bobabini e-ofisini, nasemakhaya, xa iziphelo ngcingo adibanayo inkqubo iyunithi ukuya keyboard, mouse, monitor, yomshicileli, isithwebuli, njalo njalo. D. Le element ubizwa ngokuba 'ferrite "(okanye ferrite). Kweli nqaku, siza siqonde injongo apho abenzi ngekhompyutha kunye nobugcisa eliphezulu zixhotyiswe kunye neemveliso zayo intambo okhankanywe iziqalelo.

Eyona njongo yale

isangqa Ferrite ekwaziyo ukunciphisa impembelelo sokuquqa kwerediyo kunye ukuphazamiseka magnetic kwi umqondiso, nto leyo sisasazwa ngocingo. uphawu Long kunye neengcingo namandla njengoko computer, kunye nezinye izixhobo amandla iimpawu olwaye lwamfimfitha, oko kukuthi, ukwenza i-eriyali. Bona ngempumelelo kakhulu ziveza ukuba iingxolo ngaphandle bume ezahlukeneyo eziqala ngaphakathi isixhobo, ngokuthi kudalwe uphazamiseko kwizikhululo kwi radio kunye nezinye izixhobo ze-elektroniki. Kwelinye icala, ngokuthatha zingaphazanyiswa zezulu zidlulisele ngonomathotholo, ikhompyutha okanye esinye isixhobo se-elektroniki na ukuze isebenze ngokuchanekileyo. Loo nto ukuphelisa esi senzeko kwaye usebenzise umsesane ferrite anxibe ngayo umbane okanye kagesi intambo.

iipropati ngokomzimba

Ferrite i ferromagnetic, non-Umqhubi, oko kukuthi, enyanisweni ibe yinto yokwambathisa ngemagnethi. Le ncwadi adale kwemisinga eddy yaye ngoko ke, ngokukhawuleza kakhulu magnetization umva - eziya kwi-frequency ngokwesingqi amasimi lwangaphandle kagesi. Le impahla izinto sisiseko ukukhusela olusebenzayo bezixhobo zombane. I ferrite ring banxibe kwi intambo iyakwazi ukwenza imo eqhelekileyo ukuvimba enkulu yangoku esebenzayo.

Le nto kwakheka asuselwa lwemichiza oxides zentsimbi kunye nezinye zesinyithi. It uneempawu ezizodwa Imagnethi yomhlaba kunye conductivity ephantsi. Ngale ferrites babe phantse akukho okhuphisana phakathi kwezinye izinto ngemagnethi ngobuchwepheshe-rhoqo. amakhonkco 2000nm Ferrite kuyandisa kakhulu inductance ye intambo (amakhulu eziliqela okanye amawaka amaxesha), enika aqhelelkileyo ingxolo ingcinezelo. Isiqalelo ukhwele intambo ngexesha imveliso yawo okanye isikwe semicircles ezimbini, iphuku phezu wire ngoko nangoko emva imveliso yawo. Ferrite igcwele kwityala yeplastiki. Ukuba ihlahliwe, uyakwazi ukubona ngaphakathi yeqhekeza yesinyithi.

Ngaba ferrite olufunekayo? Okanye ngaba omnye aluhlaza?

Computer kakhulu "enomsindo" (ngokwemiqathango kagesi) Izixhobo. Ngoko ke, lo motherboard ngaphakathi kwisisu semoto iyakwazi oscillate kumaza of kilohertz elinye. I-keyboard uba microchip, nayo leyo isebenza rhoqo aphakamileyo. Konke oku kukhokelela kwisizukulwana ingxolo radio kuthiwa-kufuphi kwinkqubo. Kwiimeko ezininzi, kokuba kuphele ibhodi ukuhlolwa ukusuka kagesi amasimi yezindlu metal. Nangona kunjalo, omnye umthombo ingxolo - nto iingcingo zekopolo ukuba edibanisa izixhobo ezahlukeneyo. Enyanisweni, benza zeepali nje ukuba pick up imiyalezo evela kwezinye kunomathotholo cable nomabonakude nobuchwepheshe, kwaye ukuphembelela umsebenzi isixhobo "yakhe". isihluzi Ferrite ususa ngumsindo magnetic kunye losasazo. Ezi seli ukuguqula intlokoma oluvela rhoqo magnetic abe ngamandla obushushu. Kungenxa yoko le nto zifakwa kwi eziphelweni ezininzi iintambo.

Indlela ukukhetha ferrite

Ukufaka intambo phezu ring ferrite ngezandla zenu, kufuneka uqonde iintlobo ezi mveliso. Ngapha koko, uhlobo ucingo ubukhulu yayo ixhomekeke kuhlobo yecebo (koko material) kufuneka ukuyisebenzisa. Umzekelo, ebengumsesane imvelaphi inyuselwa khona kwi intambo multi-core (intambo, data, ividiyo, okanye USB-interface), idala ebizwa ngokuba yi-phase sombane leyo adlulisele Imiqondiso anti-isigaba kule ndawo, sithwele inkcazelo luncedo, kodwa ibonisa ingxolo indlela eqhelekileyo. Kulo mzekelo, kufuneka usebenzise ferrite non-abaninzi ukuze uphephe olwaphula nokudlulisela ulwazi, kunye ferromaterial eliphezulu. Kodwa amakhonkco ferrite kwi intambo eriyali yi ekukhethwa akhethwe umbandela oza uthothe oluvela rhoqo ingxolo, kunokuba zibonisa ukuba emva kwicingo. Njengoko ubona, imveliso ezingachanekanga unako kwehlisa ukusebenza ifowuni yakho.

Isilinda ferrite

Kakhulu ngempumelelo ukumelana uphazamiseko isilinda ferrite zamafu. Nangona kunjalo, khumbula ukuba amacebo enkulu kakhulu ukuba nzinyana kakhulu ukuba ukusebenzisa, yaye imiphumo yomsebenzi wabo axhaphakile kusaza kwahluka kakhulu ukusuka ezincinane kancinane ubukhulu. Soloko usebenzise amacebo dimensions elilelona: ubukhulu ngaphakathi mababe ungqamane ngumqhubi, yaye ububanzi bayo baya athobele ububanzi isinxibelelanisi intambo.

Musa ukulibala ukuba ingxolo uncedo ukulwa ferrites kuphela. Umzekelo, kucetyiswa ukuba usebenzise intambo kunye necandelo elikhulu emnqamlezweni ngenxa conductivity ngcono. Ukukhetha ubude intambo, musa ukwenza unikezelo enkulu ubude phakathi izixhobo iqhagamshele. Ukongeza, umthombo phazamiseko ukukhonza wire uqhagamshelwano olusemgangathweni embi kunye isinxibelelanisi.

Gcoba amakhonkco ferrite

Uhlobo kunayo yonke zokurekhodisha yokumakisha amakhonkco ferrite lumi ngolu hlobo lulandelayo: K D × d x H, apho:

- K - kuyinto segama elithi "ring";

- D - ngaphandle sangqa imveliso;

- d - ubudeki engaphakathi khonkcweni ferrite;

- H - ukuphakama lokucoca ulwelo.

Ngaphandle imilinganiso yalo imveliso, lo zokuphawula na uhlobo oluchaziweyo izinto ferromagnetic. Umzekelo amangeno abe ifomu zilandelayo: K-1 M20VN 4h2,5h1,6. Esinye isiqingatha ekwafanekisa le imilinganiso ngokubanzi lo msesane kunye asongiweyo lokuqala lokuqala permeability magnetic (20 μ _i). Ukongeza kwezi parameters, inkcazo imvelaphi, umenzi nganye ibonisa rhoqo ebalulekileyo, imida ye yomtya hysteresis, resistivity kunye nobushushu Curie ukuba imveliso ethile.

Njengoko Usengasebenzisa amaso ferrite

Ngaphandle ukusetyenziswa eyaziwa kakuhle njengomkhuseli aqhelelkileyo, izixhobo ferromagnetic zisetyenziselwa abaguquli-mveliso. Ngamaxesha amaninzi kungabonwa kule kwiiflethi umbane computer equipment. Yinto eyaziwayo ukuba transformer kwi umsesane ferrite iphumelela kakhulu ngabenzi elungeleleneyo. Noko ke, asinguye wonke umntu uyazi ukuba kukho ithuba lokuba "yokunabisa" balancing. Le ukuguqulwa nesiguquli unako ukwenza i operation balancing ngokuchane ngakumbi. Ngaphezu koko, abaguquli ukuba amakhonkco ferrite ezisetyenziswa zokufanisa output nee-input impedances izigaba izixhobo transistor. Kulo msebenzi aguqulayo kunye reactance. Ngenxa kwisixhobo yokugqibela kuyenzeka ukuba isicelo sokutshintsha kuluhlu capacitance iswitch. "Njengento eqine" abaguquli zisebenza kakuhle kwi ezitsho ngaphantsi 10 MHz.

isiphelo

Abo banomdla kwindlela inxeba ferrite yedwa, kufanele kuqatshelwe ukuba ukuvimba series, owazise oluvela rhoqo ferrite core, unako ngokulula ukwandisa ukuba wenze oko umzali eyeka embalwa nombhexeshi. Njengoko theory lombane ezicetyiswayo, onjalo ukuvimba nkqubo iza kwandisa kunye isikweri inani amagophe. Kodwa ke ithiyori kodwa practice, umfanekiso thile ezahlukeneyo ngenxa nonlinearity lwezinto ferromagnetic neelahleko kuzo.

Amahobe amathuba kwi engundoqo kwandisa amanzi amaxesha amane, njengoko kufuneka, kodwa kancinane kancinane. Ngenxa yoko, ukuze kwamkelwe amathuba ngakumbi intambo ayikwazanga lokucoca kufuneka kukhethwe ubungakanani ring ngabom amakhulu. Ukuba oku akwamkelekanga, kwaye intambo kufuneka ubude enye, kubhetele ukusebenzisa izihluzi eziliqela.