Yim qhov kev tsim qauv yuam kev ntawm cov khoom sib nqus sib nqus siab hauv kev hloov hluav taws xob
1) Sau lub qhov rais ntawm magnetic core-optimized tsim
Ntau tus neeg tsim hluav taws xob tsim hluav taws xob xav tias hauv kev tsim cov khoom siv hluav taws xob sib nqus sib nqus, qhov zoo tshaj plaws tsim tau los ntawm kev sau lub qhov rais tseem ceeb, tab sis nws tsis yog. Nyob rau hauv kev tsim ntawm ntau zaus transformers thiab inductors, peb tuaj yeem pom tias ntxiv ib lossis ntau txheej ntawm windings, los yog siv cov xov hlau enameled nrog cov hlau loj dua, tsis tsuas yog tsis tuaj yeem tau txais cov txiaj ntsig zoo, tab sis yuav ua rau tag nrho cov winding poob. vim qhov sib thooj cuam tshuam hauv winding.
Yog li ntawd, nyob rau hauv kev tsim ntawm high-frequency magnetic Cheebtsam, nws tsis muaj teeb meem txawm hais tias lub winding tsis tag qhwv lub qhov rais core hlau, tab sis tsuas yog qhwv 25% ntawm lub qhov rais cheeb tsam. Koj tsis tas yuav sim sau tag nrho lub qhov rais.
Qhov kev xav tsis zoo no feem ntau cuam tshuam los ntawm kev tsim cov khoom siv hluav taws xob sib nqus sib nqus. Nyob rau hauv kev tsim ntawm lub hwj chim zaus transformer, kev ncaj ncees ntawm cov tub ntxhais thiab winding yog hais txog, yog li tsis muaj qhov sib txawv ntawm cov tub ntxhais thiab winding, thiab winding feem ntau yog tsim los sau tag nrho lub qhov rais, yog li ua kom nws cov neeg kho tshuab stability. Txawm li cas los xij, kev tsim cov khoom sib nqus sib nqus tsis muaj qhov yuav tsum tau ua.
2) "hlau poob=tooj liab poob"-optimized transformer tsim
Ntau tus tsim hluav taws xob, txawm tias nyob rau hauv ntau phau ntawv siv rau kev tsim cov hlau nplaum sib nqus, sau "hlau poob=tooj liab poob" raws li ib qho ntawm cov txheej txheem rau kev tsim qauv ntawm high-frequency transformers, tab sis nws tsis yog. Nyob rau hauv kev tsim ntawm high-frequency transformer, qhov sib txawv ntawm cov hlau poob thiab tooj liab poob tuaj yeem loj, thiab qee zaum qhov sib txawv tuaj yeem ncav cuag qhov kev txiav txim ntawm qhov loj, tab sis qhov no tsis tau txhais hais tias lub high-frequency transformer tsis zoo tsim.
Qhov kev xav tsis zoo no kuj cuam tshuam los ntawm kev tsim hluav taws xob zaus transformer. Fais fab zaus transformers feem ntau nyob hauv ib cheeb tsam loj vim muaj coob tus windings, yog li los ntawm qhov kev xav ntawm thermal stability thiab thermal uniformity, empirical tsim txoj cai ntawm "hlau poob=tooj liab" yog tau.
Txawm li cas los xij, rau high-frequency transformers, txoj cai ntawm tus ntiv tes xoo tsis tuav. Hauv kev tsim cov khoom siv hluav taws xob hloov hluav taws xob ntau zaus hloov pauv, muaj ntau yam los txiav txim siab qhov kev tsim kho kom zoo, thiab "hlau poob=tooj liab" yog qhov ua tau zoo tshaj plaws.
3) Magnetized inductance nrog to inductance=1%
Tom qab tsim cov khoom sib nqus, ntau tus neeg tsim khoom siv hluav taws xob feem ntau piav qhia txog cov kev xav tau ntawm cov xau inductance thaum xa cov kev xav tau rau cov tuam txhab transformer. Ntau daim ntawv qhia kev raug cim nrog cov kev cai zoo sib xws xws li "magnetizing inductance with to to inductance=1%" lossis "magnetizing inductance with to to inductance < 2%". Qhov tseeb, hom kev sau ntawv lossis tus qauv tsim no yog qhov tsis zoo heev.
Tus tsim hluav taws xob tsim hluav taws xob yuav tsum tau teeb tsa tus lej txwv ntawm qhov lees txais to inductance raws li kev ua haujlwm ib txwm ua ntawm Circuit Court. Nyob rau hauv tus txheej txheem ntawm kev ua transformer, lub to ntawm inductance yuav tsum tau txo kom ntau li ntau tau yam tsis muaj deteriorating lwm yam tsis muaj transformer (xws li tig-rau-tig capacitance), es tsis txhob muab cov proportional kev sib raug zoo ntawm to-inductance thiab magnetizing inductance raws li ib tug kev xav tau kev pab. .
Vim hais tias kev sib raug zoo ntawm cov dej inductance thiab magnetization inductance sib txawv heev nrog lub xub ntiag los yog tsis muaj cua sib txawv hauv transformer. Thaum tsis muaj qhov sib txawv ntawm huab cua, qhov xau inductance yuav tsawg dua 0.1% ntawm cov hlau nplaum inductance, thaum thaum muaj qhov sib txawv ntawm huab cua, txawm tias cov transformer windings yog sib txuas, qhov sib npaug ntawm cov xau. inductance thiab magnetizing inductance tuaj yeem ncav cuag 10%.
Yog li ntawd, qhov kev sib piv ntawm kev sib nqus inductance thiab magnetizing inductance yuav tsum tsis txhob muab rau cov chaw tsim khoom ntawm cov khoom sib nqus raws li tus qauv tsim ntawm transformer. Txwv tsis pub, nws yuav qhia tau tias koj tsis nkag siab txog kev paub txog kev xau los yog xav txog tus nqi xau tiag tiag. Txoj kev raug yog los qhia qhov tseeb tus nqi ntawm kev lees txais to inductance. Tau kawg, qee qhov kev faib ua feem tuaj yeem ntxiv lossis rho tawm, thiab tus nqi ntawm qhov kev faib ua feem yog 20%.
4) Leakage inductance muaj feem xyuam rau cov tub ntxhais sib nqus permeability.
Qee cov neeg tsim hluav taws xob tsim hluav taws xob ntseeg tau tias ntxiv cov tub ntxhais sib nqus rau hauv cov windings yuav ua rau cov windings sib txuas ntau dua thiab txo cov xau inductance ntawm windings; Qee cov neeg tsim khoom siv hluav taws xob xav tias cov tub ntxhais sib nqus yuav ua ke nrog thaj chaw nruab nrab ntawm cov windings tom qab ntxiv cov tub ntxhais sib nqus rau hauv cov windings, uas tuaj yeem ua rau kom cov pa tawm inductance.
Nyob rau hauv qhov tseeb, nyob rau hauv lub tsim ntawm switching fais fab mov, qhov to inductance ntawm ob coaxial winding transformers tsis muaj dab tsi ua nrog rau lub hav zoov ntawm magnetic cores. Qhov tshwm sim no yuav tsis to taub, vim hais tias cov khoom uas muaj cov txheeb ze permeability ntawm ob peb txhiab tsis muaj kev cuam tshuam me ntsis ntawm cov xau inductance thaum nws nyob ze ntawm lub kauj.
Cov txiaj ntsig ntsuas ntawm ntau pua lub transformers qhia tau hais tias qhov kev hloov pauv ntawm cov xau inductance yog qhov pib tsis tshaj 10% nrog lossis tsis muaj cov tub ntxhais sib nqus, thiab ntau qhov kev hloov pauv tsuas yog li 2%.
5) Qhov zoo tshaj plaws tus nqi ntawm tam sim no ceev ntawm transformer winding yog 2A / mm ~ 3.1A / mm.
Ntau tus neeg tsim hluav taws xob tsim hluav taws xob feem ntau suav hais tias qhov ceev tam sim no nyob rau hauv winding raws li tus qauv ntawm kev pom zoo thaum tsim cov khoom sib nqus sib nqus.
Qhov tseeb, qhov kev tsim qauv zoo tshaj plaws tsis muaj dab tsi cuam tshuam nrog lub winding tam sim no ceev. Qhov tseem ceeb tshaj plaws yog qhov poob ntau npaum li cas nyob rau hauv winding thiab seb qhov ntsuas kub dissipation puas txaus los xyuas kom meej qhov kub nce hauv qhov kev tso cai.
Peb tuaj yeem xav txog ob qhov xwm txheej hnyav ntawm kev ntsuas kub dissipation hauv kev hloov hluav taws xob. Thaum cov kua immersion thiab lub tshuab nqus tsev siv rau cov cua kub dissipation feem, qhov sib thooj tam sim no nyob rau hauv winding yuav txawv heev.
Hauv kev txhim kho tiag tiag ntawm kev hloov hluav taws xob, peb tsis quav ntsej txog qhov ceev tam sim no, tab sis tsuas yog kub npaum li cas ntawm cov xaim pob. Qhov kub nce siab puas txais tau?
Lub tswv yim yuam kev no yog tias cov neeg tsim qauv ua kom yooj yim rau tus lej ntawm qhov sib txawv thiab yog li ua kom yooj yim rau kev suav cov txheej txheem kom tsis txhob muaj qhov yuam kev rov ua dua, tab sis qhov kev simplification no tsis piav qhia txog cov xwm txheej ntawm daim ntawv thov.
6), thawj winding poob=Secondary winding poob "-optimized transformer tsim.
Ntau tus neeg tsim hluav taws xob tsim hluav taws xob ntseeg tau tias qhov kev hloov pauv hloov pauv tau zoo sib xws rau qhov kev poob qis ntawm lub transformer yog sib npaug rau qhov thib ob winding poob. Txawm tias nyob rau hauv ntau phau ntawv tsim ntawm cov khoom sib nqus, qhov no suav tias yog tus qauv rau kev tsim qauv zoo. Qhov tseeb, qhov no tsis yog tus qauv rau kev tsim qauv zoo.
Qee zaum, cov hlau poob thiab tooj liab poob ntawm transformer yuav zoo sib xws. Tab sis nws tsis muaj teeb meem ntau yog tias muaj qhov sib txawv loj ntawm qhov pib winding poob thiab qhov thib ob winding poob.
Nws yuav tsum tau hais ntxiv tias peb muaj kev txhawj xeeb txog dab tsi hauv kev tsim cov khoom siv hluav taws xob sib nqus sib nqus yog qhov kub npaum li cas winding nyob rau hauv cov cua kub dissipation hom siv. Thawj winding poob=Secondary winding poob tsuas yog txoj cai empirical hauv kev tsim lub zog zaus transformer.
7) Yog tias txoj kab uas hla winding tsawg dua qhov tob tob, qhov kev poob siab yuav tsawg heev.
Tsuas yog vim tias txoj kab uas hla winding tsawg dua qhov tob tob tsis tau txhais hais tias tsis muaj qhov poob siab ntau. Yog hais tias muaj ntau txheej hauv transformer winding, txawm hais tias cov hlau txoj kab uas hla yog thinner dua li qhov nkag mus rau qhov tob, nws yuav ua rau muaj ntau zaus poob vim muaj zog sib thooj.
Yog li ntawd, thaum xav txog qhov poob winding, peb yuav tsum tsis tsuas txiav txim qhov poob los ntawm thickness ntawm enameled hlau, tab sis kuj comprehensively xav txog cov kev npaj ntawm tag nrho cov winding qauv, nrog rau winding hom, winding txheej thiab winding thickness.
8) Qhov qhib-circuit resonance zaus ntawm transformer nyob rau hauv pem hauv ntej Circuit Court yuav tsum siab tshaj qhov zaus switching.
Ntau tus neeg tsim hluav taws xob tsim hluav taws xob xav tias qhov qhib-circuit resonance zaus ntawm transformer yuav tsum siab dua qhov hloov zaus ntawm lub converter thaum tsim thiab sim transformer. Qhov tseeb, qhov qhib-circuit resonance zaus ntawm transformer tsis muaj dab tsi cuam tshuam nrog qhov hloov zaus.
Peb tuaj yeem xav txog qhov txwv tsis pub: rau qhov zoo tshaj plaws sib nqus core, nws inductance yog infinite, tab sis kuj tseem yuav muaj qhov me me tig-rau-tig capacitance, thiab nws cov zaus resonance yog kwv yees li xoom, uas yog ntau me dua qhov zaus hloov.
Dab tsi yog qhov cuam tshuam tiag tiag rau lub voj voog yog qhov luv-circuit resonance zaus ntawm lub transformer. Feem ntau, qhov luv-circuit resonance zaus ntawm transformer yuav tsum muaj ntau tshaj li ob qhov kev txiav txim ntawm qhov loj ntawm kev hloov zaus.
