Raws li lub hauv paus tseem ceeb ntawm kev hloov- hom khoom siv hluav taws xob (SMPS), qhov me me ntawm cov hluav taws xob hloov hluav taws xob yog qhov tseem ceeb rau kev tsav lub teeb yuag thiab siab zog ntawm SMPS. Kev siv thev naus laus zis ntau zaus, cov khoom siv tshiab, kev ua kom zoo dua qub, thiab cov txheej txheem hloov kho dua tshiab, cov tshuab hluav taws xob hluav taws xob tuaj yeem txo lawv qhov loj me thaum ua kom lub zog hloov dua siab tshiab thiab kev ntseeg tau, ua kom haum rau cov qauv tsim ntawm cov neeg siv khoom siv hluav taws xob, lub zog tshiab, AI servers, thiab lwm yam xwm txheej. Lawv txoj kev miniaturization tau tsim muaj ntau- txheej txheem thev naus laus zis.
Kev ua haujlwm siab - zaus yog lub hauv paus tseem ceeb ntawm lub tshuab hluav taws xob transformer miniaturization. Raws li cov qauv electromagnetic induction, thaum qhov voltage thiab sib nqus flux ceev ntawm cov tub ntxhais yog tsau, kev khiav hauj lwm zaus yog inversely proportional rau tus naj npawb ntawm coil lem thiab tus ntoo khaub lig -sectional cheeb tsam ntawm cov tub ntxhais. Ib txwm muaj hwj chim zaus transformers ua haujlwm ntawm 50/60Hz xwb, yuav tsum tau cov cores tuab thiab ntau windings; thaum lub tshuab hluav taws xob, los ntawm kev sib koom ua ke thib peb - tiam semiconductor li GaN thiab SiC, tuaj yeem ua rau kev khiav hauj lwm zaus mus rau kaum ntawm kHz mus rau ob peb MHz, txo cov coil tig thiab qhov loj ntawm cov tub ntxhais. Piv txwv li, theoretically, nce qhov zaus ntawm 20kHz mus rau 200kHz tuaj yeem txo qhov ntim rau 1/10 ntawm nws qhov loj me. Ua ke nrog lub nrawm- them nyiaj adapter rau cov xov tooj ntawm tes nrog MHz- qib hloov zaus, qhov no tuaj yeem ua tiav daim npav rho nyiaj- theem kev tsim qauv. Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov qhov txo qis rov qab ntawm cov zaus ntau dua; Kev nce ntau zaus tuaj yeem ua rau muaj kev poob qis, yuav tsum muaj qhov sib npaug ntawm cov ntaub ntawv thiab cov txheej txheem kom ua tiav qhov kev ua tau zoo.
Cov ntaub ntawv tseem ceeb tshiab thiab cov qauv tsim qauv muab kev txhawb nqa rau kev ua haujlwm me me. Cov tub ntxhais yog lub hauv paus tseem ceeb ntawm lub tshuab hluav taws xob hloov hluav taws xob, ua rau daim ntawv thov qis - poob, siab - cov ntaub ntawv permeability tseem ceeb heev. Rau siab - cov ntawv thov zaus, manganese- zinc ferrite thiab amorphous / nanocrystalline alloy cores yog qhov nyiam, vim lawv qhov siab - zaus poob qis dua li cov ntaub ntawv silicon steel. Ua ke nrog optimized magnetic gap tsim, sib nqus saturation tuaj yeem raug suppressed, tswj kub nce thaum txo ntim. Cov kev daws teeb meem zoo siv hybrid core technology, fusing ferrite thiab nanocrystalline cov ntaub ntawv rau hauv ib lub phaj sib nqus. Cov ntaub ntawv kho kom haum yog siv rau qhov sib txawv ntawm cov hlau nplaum sib txawv hauv cov cheeb tsam sib txawv, ntsuas qhov poob, qhov hnyav, thiab tus nqi. Co-hlau tooj liab-hlau integrated molding txheej txheem ua tiav cov tub ntxhais thiab winding los ntawm co-firing magnetic slurry thiab tooj liab conductive slurry, ho txhim kho lub zog ceev thiab ua tau raws li qhov siab -tam sim no, me me -size servers.
Innovation nyob rau hauv winding thiab qauv ntxiv compress qhov chaw thiab optimize kev ua tau zoo. Planar transformer structures yog cov ntsiab lus tseem ceeb, hloov cov tsoos hlau windings nrog ca tooj liab ntawv ci windings. Los ntawm PCB stacking thiab luam ntawv, qhov siab tuaj yeem txo qis, thaum nce tshav kub dissipation cheeb tsam, txo cov xau inductance, thiab txhim kho coupling efficiency, ua rau nws haum rau nyias li. Integrated tsim merges hluav taws xob transformers thiab inductors; Piv txwv li, nyob rau hauv LLC resonant topologies, lub resonant inductor yog kev koom ua ke rau hauv lub transformer core, txo tus naj npawb ntawm cov Cheebtsam thaum precisely tswj to topologance inductance, uas ua rau lub ntim txo ntau tshaj 30%. Peb -sib nqus coiled kev sib xyaw ua ke, siv nano- cov khoom sib nqus mos, ua tiav ob - xaj- ntawm -magnetic-sib nqus- thaj tsam ceev nce rau hauv -chip inductor cheeb tsam 13}, muab cov kev siv ultra{{13} kev daws teeb meem RF.
Cov txheej txheem hloov kho dua tshiab thiab topology optimization solidify lub hauv paus rau miniaturized kev ntseeg tau. Automated precision manufacturing txheej txheem txhim kho winding sib xws thiab txo qhov chaw seem; technologies xws li precision stacking printing thiab laser -txiav tooj liab ntawv ci xyuas kom meej conductivity thiab rwb thaiv tsev cia siab rau hauv me me. Meanwhile, los ntawm optimizing lub transformer tsim raws li cov yam ntxwv ntawm SMPS topology, lub multi-winding qauv yuav hloov mus rau multi-chaw nres nkoj fais fab mov yuav tsum, simplifying lub system qauv; lub dual- zaus converter qhov sib nqus sib nqus txuas ntxiv txo qhov loj me los ntawm kev sib koom ua ke siab - zaus thiab qis- zaus inductors. Los ntawm kev sib koom ua ke ntawm cov thev naus laus zis no, lub tshuab hluav taws xob hloov hluav taws xob tuaj yeem tswj hwm kev ua haujlwm siab thiab tsis tshua muaj kev cuam tshuam cov yam ntxwv thaum txo nws qhov loj me, dhau los ua ib qho tseem ceeb txhawb rau niaj hnub precision fais fab mov tsim.