I. Iingxaki zeSicelo se-Ultra-Low ESR (≤3mΩ) kwii-VRM ze-AI Server
Umbuzo oPhambili 1: Umbane wethu weCPU unempendulo engentle kakhulu yesikhashana; imilinganiselo ibonisa ukwehla okukhulu kwevolthi. Ngaba i-VRM ESR ye-output capacitor iphezulu kakhulu? Ngaba kukho ii-capacitors ezine-ESR engaphantsi kwe-4 milliohms ezicetyiswayo?
Umbuzo 1:
Umbuzo: Xa silungisa i-VRM yombane we-AI server CPU, sidibene nengxaki yokuwa kwe-core voltage transient drops. Sizamile ukwenza ngcono ulwakhiwo lwe-PCB kunye nokwandisa inani lee-capacitors eziphumayo, kodwa i-discharge slope elinganiswe nge-oscilloscope ayikaneliseki, nto leyo ekhokelela ekubeni sicinge ukuba i-ESR ye-capacitor iphezulu kakhulu. Kolu hlobo lwesicelo, singayilinganisa okanye siyivavanye njani ngokuchanekileyo i-ESR yokwenyani ye-capacitor kwisekethe? Ngaphandle kokubhekisa kwiphepha ledatha, zeziphi iindlela ezisebenzayo ezikhoyo zokuqinisekisa ngaphakathi?
Impendulo: Kwiinkqubo ezinjalo zokusebenza okuphezulu, sicebisa ukusebenzisa ii-capacitors ze-solid-state ezine-multilayer ezineempawu ze-ESR eziphantsi kakhulu, ezifana nothotho lwe-YMIN MPS, apho i-ESR yayo ingaba phantsi njenge-≤3mΩ (@100kHz), ngokuhambelana nemigangatho yabakhuphisana baseJapan abakumgangatho ophezulu. Ngexesha lokuqinisekiswa kwebhodi, isantya sokubuyisela i-voltage sinokubonwa ngovavanyo lwenyathelo lomthwalo, okanye i-impedance curve inokulinganiswa kusetyenziswa i-network analyzer. Emva kokutshintsha ezi capacitors, akusoloko kuyimfuneko ukuyila kwakhona i-compensation loop, kodwa uvavanyo lwempendulo olufutshane luyacetyiswa ukuqinisekisa isiphumo sokuphucula.
Umbuzo 2:
Umbuzo: Imodyuli yethu yombane yeGPU ifumana ukwehla okukhulu kwevolthi phantsi kovavanyo lokusingqongileyo olushushu kakhulu. Imifanekiso yobushushu ibonisa ukuba ubushushu bendawo ye-capacitor budlula i-85°C. Uphando lubonisa ukuba i-ESR ine-coefficient yobushushu obuhle. Xa kuvavanywa ukusebenza kobushushu obuphezulu bee-capacitors, ukongeza kwixabiso le-ESR yobushushu begumbi kwiphepha ledatha, ngaba kufuneka siqwalasele i-ESR drift curve kulo lonke uluhlu lobushushu? Ngokubanzi, zeziphi izinto okanye izakhiwo ezibangela ukushukuma kobushushu obuncinci kwii-capacitors?
Impendulo: Inkxalabo yakho ibalulekile. Kubalulekile ngokwenene ukuqaphela uzinzo lwe-ESR ye-capacitor kulo lonke uhla lobushushu (-55°C ukuya kwi-105°C). Ii-capacitor ze-polymer solid-state ezininzi (ezifana nothotho lwe-YMIN MPS) ziyaphumelela kule nkalo, zibonisa utshintsho oluncinci kwi-ESR kumaqondo obushushu aphezulu. Umzekelo, ukunyuka kwe-ESR kwi-85℃ xa kuthelekiswa ne-25℃ kunokulawulwa ngaphakathi kwe-15%, ngenxa yesakhiwo sazo se-solid-state electrolyte esizinzileyo kunye nesakhiwo se-multilayer, okwenza ukuba zilungele iimeko zobushushu obuphezulu, ezinokuthembeka okuphezulu ezifana neeseva ze-AI.
Umbuzo 3:
Umbuzo: Ngenxa yendawo encinci kakhulu yoyilo lwe-PCB, asinakunciphisa i-ESR iyonke ngokuqhagamshela ii-capacitors ezininzi ngaxeshanye. Okwangoku, i-ESR ye-capacitor enye imalunga ne-5mΩ, kodwa impendulo yexeshana isengaphantsi komgangatho. Sibona ii-capacitors ezinomthamo omnye kwimarike zibanga i-ESR engaphantsi kwe-3mΩ. Ziziphi iimpawu ze-impedance zezi capacitors ze-solid-state ezine-layer ezininzi kwii-frequency eziphezulu (umz., ngaphezulu kwe-1MHz)? Ngaba isiphumo sazo sokucoca esinomlinganiselo ophezulu siya kuphazamiseka ngenxa yezakhiwo ezahlukeneyo?
Impendulo: Le yingxaki eqhelekileyo. Ii-capacitor ze-solid-state ezikumgangatho ophezulu ze-ESR multilayer (ezifana nothotho lwe-YMIN MPS) zinokufikelela kwi-ESR ephantsi kunye ne-ESL ephantsi (i-equivalent series inductance) ngokusebenzisa ulwakhiwo lwe-electrode lwangaphakathi olulungisiweyo. Ke ngoko, igcina i-impedance ephantsi kakhulu kuluhlu lwe-1MHz ukuya kwi-10MHz high-frequency, nto leyo ekhokelela ekuhluzweni kwengxolo ephezulu kakhulu. I-impedance-frequency curve yayo idla ngokugqithana neyeemveliso ezifanayo ezivela kwiimpawu eziphambili zamazwe ngamazwe, ngaphandle kokuchaphazela uyilo lwe-power integrity (PI).
Umbuzo 4:
Umbuzo: Kuyilo lwe-VRM olunezigaba ezininzi, sifumanise ukungalingani kwangoku kwisigaba ngasinye, sikrokrela unxibelelwano kwi-parameter ye-ESR ehambelana nee-capacitors zokukhupha zesigaba ngasinye. Nokuba sisebenzisa ii-capacitors ezivela kwi-batch efanayo, uphuculo lulinganiselwe. Kwi-AI server power supply designs ezijolise ekusebenzeni okugqithisileyo, yeyiphi inqanaba le-batch ESR consistency kunye ne-dispersion ekufuneka ii-capacitors ziyifikelele? Ngaba abavelisi banikezela ngedatha yokusasazwa kwezibalo efanelekileyo?
Impendulo: Umbuzo wakho uchaphazela isiseko sokuthembeka kwemveliso yobuninzi. Abavelisi be-capacitor abasebenza ngokuphezulu kufuneka bakwazi ukulawula ngokungqongqo ukuhambelana kwe-ESR. Umzekelo, uthotho lwe-MPS lwe-ymin, ngokusebenzisa iinkqubo zemveliso ezenzekelayo ngokupheleleyo, lunokulawula ukusasazeka kwe-batch-specification ESR ngaphakathi kwe-±10% kwaye lubonelele ngeengxelo zezibalo ze-batch parameter ezineenkcukacha. Oku kubalulekile kwiindlela zoyilo zombane ze-CPU/GPU ezinamandla aphezulu ezifuna ukwabelana ngombane we-multi-phase.
Umbuzo 5:
Umbuzo: Ngaphandle kokusebenzisa ii-network analyzers ezibizayo, ngaba kukho iindlela ezilula kwicandelo lokuvavanya i-ESR ngokomgangatho okanye ngokwesiqingatha kunye nesantya sokukhupha ii-capacitors? Sizamile ukusebenzisa umthwalo we-elektroniki kuvavanyo lwenyathelo, kodwa singazikhupha njani iiparameter ezisebenzayo kwi-voltage drop waveform elinganisiweyo ukuze sithelekise ukusebenza kwee-capacitors ezahlukeneyo?
Impendulo: Ewe, uvavanyo lwenyathelo lomthwalo yindlela elungileyo. Ungagxila kwiiparameter ezimbini: ukuhla kwe-voltage ephezulu (ΔV) kunye nexesha elifunekayo ukuze i-voltage ibuye kwixabiso elizinzileyo. I-ΔV encinci kunye nexesha elifutshane lokubuyisela lidla ngokuthetha i-ESR ephantsi elinganayo kunye nempendulo ekhawulezayo yenethiwekhi ye-capacitor. Abanye ababoneleli be-capacitor abaphambili (njenge-ymin) banikezela ngamanqaku esicelo aneenkcukacha ukukukhokela kwindlela yokuseta iimvavanyo kunye nokutolika idatha, ngaloo ndlela belinganisa uphuculo oluziswe zii-capacitors ze-ESR ezisezantsi kakhulu ezifana nothotho lwe-MPS.
II. Imiba yoLawulo loBushushu malunga nokuzinza kobushushu obuphezulu kunye nobushushu obuphezulu
Umbuzo oPhambili 2: Emva kokuba umatshini usebenze ixesha elide, ii-capacitors ziba shushu kakhulu, kwaye ubushushu obuphakathi buphezulu. Ndixhalabile ukuba ziya kwaphuka ekuhambeni kwexesha. Ngaba kukho ii-capacitors ze-560μF ezine-ripple current ephezulu kakhulu ezinokumelana nobushushu obufikelela kwi-105℃? Umthamo nawo ubalulekile
Umbuzo 6:
Umbuzo: Xa iseva yethu ye-AI isebenza ngomthwalo opheleleyo, ubushushu obulinganisiweyo bendawo ye-capacitor kwisekethe yombane ye-GPU bufikelela ngaphezulu kwama-90°C. Ubalo lubonisa imfuneko ye-ripple current emalunga ne-8.5A, kodwa i-ripple current elinganisiweyo yee-capacitors ezikhoyo ayonelanga kakhulu kubushushu obuphezulu. Sifanele siyitolike njani ixabiso le-ripple current kwiphepha ledatha xa sikhetha ii-capacitors? Umzekelo, kwi-capacitor ebhalwe "10.2A @ 45°C", ingakanani i-real useable current yayo enomhla kubushushu obuphakathi obungama-85°C?
Impendulo: Ukususwa kwe-Ripple current kubalulekile kuyilo lobushushu obuphezulu. Iidatha zihlala zibonelela ngee-curve zokususwa kwe-current current temperature-ripple. Ukuthatha uthotho lwe-YMIN MPS njengomzekelo, i-ripple current yayo eqhelekileyo eyi-10.2A (@45°C) isagcina amandla ayo asebenzayo e-≥8.2A emva kokususwa kwiqondo lobushushu eliphakathi le-85°C, ukwehla malunga ne-20%, ngenxa yokulahleka kwayo okuphantsi kunye noyilo oluhle kakhulu lobushushu. Ukukhetha olu hlobo lwe-capacitor kuqinisekisa ukusebenza okuzinzileyo kwiindawo ezinobushushu obuphezulu.
Umbuzo 7:
Umbuzo: Sinciphise ngempumelelo ukunyuka kobushushu be-capacitor ngokunyusa ubukhulu be-PCB copper foil ukusuka kwi-1oz ukuya kwi-2oz, kodwa isiphumo besingekalindelwanga. Kwii-capacitors ezifuna ukumelana nemisinga ye-ripple engaphezulu kwe-10A, ngaphandle kobukhulu be-copper, zeziphi ezinye izinto zoyilo lwe-PCB ezichaphazela kakhulu ubushushu bazo bokugqibela bokusebenza? Ngaba kukho naluphi na ulwakhiwo olucetyiswayo kunye nezikhokelo zoyilo?
Impendulo: Uyilo lwe-PCB lubalulekile. Ukongeza ekwenzeni i-copper foil ibe nkulu, kubalulekile ukuqinisekisa iindlela zamandla ezimfutshane nezibanzi kunye nokunciphisa i-loop impedance. Kwii-capacitors zamandla ezijikelezayo eziphezulu ezifana ne-YMIN MPS series, kuyacetyiswa ukuba ubeke uluhlu lwee-thermal vias ezijikeleze ii-capacitor pads (hayi ngezantsi) kwaye uziqhagamshele kwi-internal ground plane ukuze zisasazeke. Ukulandela ezi zikhokelo zoyilo, kunye ne-ESR ephantsi ye-capacitor ye-3mΩ, ukunyuka kobushushu okuqhelekileyo kunokulawulwa ngaphakathi kwe-15°C, okuphucula kakhulu ukuthembeka.
Umbuzo 8:
Umbuzo: Kwi-VRM yesigaba esinee-multiphase, nokuba i-capacitor ibekwe ngendlela efanayo, ubushushu be-capacitor kwisigaba esiphakathi busephezulu ngama-5-8°C kunasemacaleni, oku kunokubangela ukuhamba komoya kunye nokungalingani kwesakhiwo. Kwimeko enjalo, ngaba kukho naziphi na iindlela zokubeka i-capacitor ezijoliswe kuzo okanye amaqhinga okukhetha ukulinganisela uxinzelelo lobushushu lwesigaba ngasinye? Impendulo: Le yingxaki eqhelekileyo yokuchithwa kobushushu okungalinganiyo. Elinye icebo kukusebenzisa ii-capacitors ezine-ripple current ratings eziphezulu kwisigaba esiphakathi okanye kwiindawo ezishushu, okanye ukudibanisa ii-capacitors ezimbini ngaxeshanye kwezo ndawo ukuze kusasazwe umthwalo wobushushu. Umzekelo, imodeli ethile ye-high-Irip evela kuthotho lwe-YMIN MPS inokukhethwa ukuze kuqiniswe indawo ngaphandle kokutshintsha umthamo we-capacitor iyonke, ngaloo ndlela kuphuculwe ukusasazwa kobushushu kwenkqubo ngaphandle koyilo olugqithisileyo.
Umbuzo 9:
Umbuzo: Kwiimvavanyo zethu zokuqina kobushushu obuphezulu, sifumanise ukuba amandla ombane kwezinye ii-capacitor abonakalise ukuwohloka okulinganisekayo kunye nobushushu obukhulayo kunye nokusebenza ixesha elide (umz., ukuwohloka okungaphezulu kwe-10% kwi-105°C). Kwizixhobo zamandla zeseva ye-AI ezifuna uzinzo lwexesha elide, kufuneka ziqwalaselwe njani iimpawu zobushushu bombane kunye nozinzo lwexesha elide lwee-capacitor? Loluphi uhlobo lwe-capacitor olusebenza ngcono kule nkalo?
Impendulo: Uzinzo lwe-capacitance luphawu oluphambili lokuthembeka kobomi obude. Ii-capacitor ze-polymer eziqinileyo, ngakumbi iintlobo ze-multilayer ezisebenzayo kakhulu, zinenzuzo engaphakathi kule nkalo. Umzekelo, uthotho lwe-MPS lwe-ymin lusebenzisa i-electrolyte ekhethekileyo ye-polymer, apho ukwahluka kwe-capacitance kunokulawulwa ngaphakathi kwe-±10% kulo lonke uhla lobushushu (-55℃ ukuya kwi-105℃). Ngaphezu koko, emva kweeyure ezingama-2000 zokusebenza okuqhubekayo kwi-105°C, ukubola kwe-capacitance kudla ngokuba ngaphantsi kwe-5%, okungaphezulu kakhulu kunee-capacitor eziqhelekileyo ze-liquid okanye ze-solid-state.
Umbuzo we-10:
Umbuzo: Ukulawula ukunyuka kobushushu be-capacitor kwinqanaba lenkqubo, siceba ukwazisa ukulinganisa ubushushu. Zeziphi iiparameter eziphambili (umz., ukumelana nobushushu i-Rth) ekufuneka sizifumane kumthengisi ukuze sakhe imodeli yobushushu ye-capacitor echanekileyo? Ezi parameter zihlala zilinganiswa njani, kwaye zibonelelwa njengomgangatho kwidathashethi?
Impendulo: Ukulinganisa okuchanekileyo kobushushu kufuna iparameter ye-junction-to-ambient thermal resistance (Rth-ja) ye-capacitor. Abavelisi be-capacitor abadumileyo baya kubonelela ngale datha. Umzekelo, i-ymin ibonelela ngeeparameter zokumelana nobushushu ezisekelwe kwiimeko zovavanyo ezisemgangathweni ze-JESD51 kwii-capacitors zayo ze-MPS series, kwaye zinokubandakanya ii-curves zesalathiso sokunyuka kobushushu kwiindlela ezahlukeneyo ze-PCB. Oku kunceda kakhulu iinjineli ukuqikelela nokuphucula ukusebenza kobushushu benkqubo kumanqanaba okuqala oyilo.
III. Imiba yoQinisekiso malunga noBomi obude kunye nokuthembeka okuphezulu
Umbuzo oPhambili 3: Izixhobo zethu zenzelwe ubomi obungaphezulu kweminyaka emi-5, kodwa ii-capacitors zangoku ziqikelelwa ukuba ziya kuncipha ekusebenzeni kwazo kungakapheli iminyaka emi-3. Ngaba zikho ii-capacitors ze-solid-state ezinobomi obude ezinokuqinisekisa iiyure ezingaphezu kwama-2000 kwi-105°C?
Umbuzo 11:
Umbuzo: Iseva yethu ye-AI yenzelwe iminyaka emi-5 yokusebenza ngaphandle kokuphazamiseka. Ukuba iqondo lobushushu eliphakathi kwegumbi leseva lingama-35°C, ubushushu be-capacitor core kulindeleke ukuba bube malunga nama-85°C. Iziphumo zovavanyo lobomi "lweeyure ezingama-2000 @ 105°C" ezifumaneka kwiinkcukacha kufuneka ziguqulwe njani zibe lixesha lobomi elilindelekileyo phantsi kweemeko zokusebenza zangempela? Ngaba kukho iimodeli zokukhawulezisa ezamkelweyo jikelele kunye neefomyula zokubala?
Impendulo: Imodeli ye-Arrhenius idla ngokusetyenziselwa ukuguqula ubomi; kuyo yonke i-10°C yokwehla kobushushu, ubomi buphantse buphindwe kabini. Nangona kunjalo, izibalo zokwenyani kufuneka ziqwalasele uxinzelelo lwangoku olujikelezayo. Abanye abathengisi banikezela ngezixhobo zokubala ubomi obukwi-intanethi. Ukuthatha uthotho lwe-YMIN MPS njengomzekelo, uvavanyo lwayo lweeyure ezingama-2000 @105°C lwenziwe phantsi kweemeko zomthwalo opheleleyo. Iguqulwe yaba yi-85°C kwaye iqwalasela uxinzelelo lokwenyani lokusebenza emva kokuyeka, ubomi bayo obuqikelelweyo budlula kakhulu imfuneko yeminyaka emi-5, kwaye kubonelelwa ngezibalo ezineenkcukacha.
Umbuzo 12:
Umbuzo: Kwiimvavanyo zethu zokwaluphala eziqhutywa ngobushushu obuphezulu, sifumanise ukuba ezinye ii-capacitors zifumana ukunyuka kwe-ESR okungaphezulu kwama-30% emva kweeyure ezili-1500. Kwii-capacitors ezinobomi obude obuqhelekileyo, zeziphi iinkcukacha eziphambili zokuwohloka kokusebenza (ezifana nokunyuka kwe-ESR kunye notshintsho lwe-capacitance) ekufuneka zifakwe kwingxelo yovavanyo lobomi? Luluphi uluhlu lokuwohloka olunokuthathwa njengolwamkelekileyo?
Impendulo: Ingxelo yovavanyo oluqinileyo lobomi kufuneka irekhode ngokucacileyo iimeko zovavanyo (ubushushu, i-voltage, i-ripple current) kunye notshintsho lwe-ESR olulinganiswa rhoqo kunye ne-capacitance. Kwizicelo eziphezulu, ngokubanzi kufuneka ukuba emva kweeyure ezingama-2000 zovavanyo lomthwalo opheleleyo wobushushu obuphezulu, ukunyuka kwe-ESR akufanele kudlule i-10%, kwaye ukuwohloka kwe-capacitance akufanele kudlule i-5%. Umzekelo, ingxelo esemthethweni yovavanyo lobomi boluhlu lwe-YMIN MPS isebenzisa le migangatho, inika idatha ecacileyo kwaye ibonise uzinzo lwayo phantsi kweemeko ezinzima.
Q13:
Umbuzo: Iiseva zifuna uvavanyo olwahlukeneyo lokungcangcazela koomatshini. Sidibene neengxaki zokuqhekeka okuncinci okubonakala kwiindawo zokudibanisa iiphini ze-capacitor pin ngenxa yokungcangcazela. Xa ukhetha ii-capacitors, zeziphi izakhiwo zoomatshini okanye iziqinisekiso zovavanyo ekufuneka ziqwalaselwe ukuphucula ukumelana nokungcangcazela?
Impendulo: Gxila ekubeni ingaba i-capacitor iphumelele na kuvavanyo lokungcangcazela ngokwemigangatho efana ne-IEC 60068-2-6. Ngokwesakhiwo, ii-capacitors ezinee-bottoms ezizaliswe yi-resin kunye noyilo lwee-pin eziqinisiweyo zibonelela ngokumelana nokungcangcazela okuphezulu. Umzekelo, uthotho lwe-MPS lwe-ymin lusebenzisa olu lwakhiwo oluqinisiweyo kwaye luphumelele kuvavanyo lokungcangcazela oluqatha, ukuqinisekisa ukuthembeka konxibelelwano ngexesha lokuthuthwa kunye nokusebenza kweseva.
Umbuzo 14:
Umbuzo: Sifuna ukwakha imodeli yokuqikelela ukuthembeka kwe-capacitor echanekileyo ngakumbi, efuna idatha yokusasazwa kwesantya sokusilela (umz., iiparameter zemilo kunye nesikali sokusasazwa kwe-Weibull). Ngaba abavelisi be-capacitor badla ngokubonelela abathengi ngale datha yokuthembeka eneenkcukacha?
Impendulo: Ewe, abavelisi abaphambili banikezela ngedatha enzulu yokuthembeka. Umzekelo, i-Ymin inokubonelela ngochungechunge lwayo lwe-MPS ngeengxelo eziquka amaxabiso esantya sokusilela (i-FIT), iiparameter zokusasazwa kweWeibull, kunye noqikelelo lobomi bonke kumanqanaba ahlukeneyo okuzithemba. Olu lwazi, olusekelwe kuvavanyo olubanzi lokuqina, lunceda abathengi ukuba benze uvavanyo lokuthembeka oluchanekileyo kunye noqikelelo lwenqanaba lenkqubo.
Umbuzo 15:
Umbuzo: Ukulawula amazinga okusilela kwangethuba, songeze inyathelo lokuvavanya ukuguga okutshajiswa ngobushushu obuphezulu kuhlolo lwethu lwezinto ezingenayo. Ngaba abavelisi be-capacitor benza uvavanyo lokusilela kwangethuba lwe-100% ngaphambi kokuba kuthunyelwe? Zithini iimeko zokuvavanya eziqhelekileyo, kwaye oku kubaluleke kangakanani ekuqinisekiseni ukuthembeka kwebhetshi?
Impendulo: Abavelisi be-capacitor abanoxanduva benza uvavanyo lwangaphambi kokuthunyelwa oluyi-100%. Iimeko eziqhelekileyo zovavanyo zinokubandakanya ukusebenzisa i-voltage elinganisiweyo kunye ne-ripple current kumaqondo obushushu aphezulu kakhulu kunobushushu obulinganisiweyo (umz., 125°C) ngaphezulu kweeyure ezingama-24. Le nkqubo inzima isusa ngempumelelo iimveliso ezingasebenzi kakuhle kwangethuba, inciphisa izinga lokungasebenzi kakuhle kweemveliso eziphumayo ukuya kumanqanaba aphantsi kakhulu (umz., <10ppm). I-Ymin isebenzisa olu vavanyo lungqongqo kuthotho lwayo lwe-MPS, inika abathengi uqinisekiso lomgangatho "ongenasiphako".
IV. Ngokuphathelele ukuKhethwa kwee-Alternative High-Performance Capacitors
Umbuzo oPhambili 4: Uthotho lwePanasonic GX esilusebenzisayo ngoku lunexesha elide kakhulu/ixabiso eliphezulu, kwaye sidinga ngokungxamisekileyo enye indlela yasekhaya. Ngaba kukho ii-capacitor ze-2.5V 560μF ezine-ESR efanayo, umbane we-ripple, kunye nobomi bokuphila? Okona kulungileyo, ukutshintshwa ngokuthe ngqo.
Umbuzo 16:
Umbuzo: Ngenxa yemida ye-supply chain, kufuneka sifumane i-capacitor esebenza kakhulu eyenziwe ekhaya ukuze ithathe indawo ye-capacitor ye-560μF/2.5V ngqo kwi-brand yaseJapan esetyenziswayo ngoku kuyilo lwethu. Ngaphandle kwe-capacitance esisiseko, i-voltage, i-ESR, kunye nobukhulu, zeziphi iiparameter zokusebenza ezinzulu kunye nee-curves ekufuneka zithelekiswe ngexesha lokuqinisekiswa kokutshintshwa ngokuthe ngqo?
Impendulo: Ukulinganisa okunzulu kubalulekile. Oku kulandelayo kufuneka kuthelekiswe: 1) Ii-curve ze-impedance-frequency ezipheleleyo (ukusuka kwi-100Hz ukuya kwi-10MHz) ukuqinisekisa iimpawu ezihambelanayo ze-high-frequency; 2) Ii-curve ze-Ripple current-delating current; 3) Idatha yovavanyo lobomi kunye nee-curve ze-decay. Enye indlela efanelekileyo, efana nothotho lwe-YMIN MPS, iya kubonelela ngengxelo eneenkcukacha yokuthelekisa ebonisa ukuba ikwinqanaba elifanayo okanye elingcono kunomncintisani wokuqala waseJapan kwiiparameter eziphambili ezingentla, ngaloo ndlela ifezekisa indawo yokwenyani "ye-plug-and-play".
Umbuzo 17:
Umbuzo: Emva kokutshintsha ngempumelelo ii-capacitors, ukusebenza kwenkqubo kuhambelane kakhulu nemigangatho, kodwa ukunyuka okuncinci kwengxolo ye-ripple kubonwe kumbane otshintshayo kwiifrequensi ezithile (umz., 1.2MHz). Yintoni enokubangela oku? Ngaphandle kokutshintsha i-topology ephambili, zeziphi iindlela zokulungisa ezingasetyenziswa rhoqo ukwenza oku kube ngcono?
Impendulo: Oku kusenokwenzeka ukuba kungenxa yomahluko omncinci kwiimpawu ze-impedance phakathi kwee-capacitors ezindala nezintsha kwiifrequencies eziphezulu kakhulu. Iindlela zokwenza ngcono ziquka: ukudibanisa i-capacitor ye-ceramic enexabiso elincinci, ephantsi ye-ESL ngokuhambelana ne-capacitor enkulu ekhoyo ukuze kuphuculwe ukuhluzwa kuloo frequencies; okanye ukulungisa i-frequency yokutshintsha. Ababoneleli be-capacitor abadumileyo (njenge-ymin) baya kubonelela ngenkxaso yesicelo kwiimveliso zabo (umz., uthotho lwe-MPS), kubandakanya neengcebiso ezithile zokwenza ngcono isihluzi semveliso.
Umbuzo 18:
Umbuzo: Iimveliso zethu zithengiswa kwihlabathi liphela kwaye zinemigaqo engqongqo yokusingqongileyo (efana neRoHS 2.0, REACH). Xa kuvavanywa ababoneleli abatsha be-capacitor, zeziphi iimpepha ezithile zokuthobela imithetho ekufuneka zicelwe?
Impendulo: Ababoneleli kufuneka banike ingxelo yamva nje yovavanyo lokuthobela iRoHS/REACH ekhutshwe yintlangano enegunya lomntu wesithathu (njengeSGS), kunye nefomu epheleleyo yesibhengezo sezinto. La maxwebhu kufuneka adwelise ngokucacileyo iziphumo zovavanyo lwazo zonke izinto ezithintelweyo. Ababoneleli abamiselweyo, njengeYmin, banokubonelela ngeseti epheleleyo yamaxwebhu okuthobela indalo ahlangabezana nemigangatho yamazwe ngamazwe yemigca yemveliso efana nothotho lweMPS, ukuqinisekisa ukungena kakuhle kweemveliso zabathengi kwimarike yehlabathi.
Umbuzo 19:
Umbuzo: Ukuze sinciphise iingozi zekhonkco lokubonelela, siceba ukwazisa umthengisi wesibini. Ngaba iimveliso ze-capacitor zomthengisi omtsha zinezifundo ezivuthiweyo zesicelo esikhulu kwiiseva ze-AI eziqhelekileyo okanye izixhobo zeziko ledatha? Ngaba banokubonelela ngeengxelo zokuqinisekisa okanye idatha yokusebenza evela kubathengi bokugqibela njengesalathiso?
Impendulo: Eli linyathelo elibalulekileyo ekunciphiseni umngcipheko wokungeniswa. Umthengisi othembekileyo kufuneka akwazi ukubonelela ngezifundo zeemeko zokusetyenziswa ngobuninzi kubathengi abaziwayo okanye kwiiprojekthi zokulinganisa. Umzekelo, i-Ymin inokubonelela ngeengxelo zobugcisa okanye izatifikethi zokuvunywa kwabathengi ezibonisa ukuqinisekiswa kokuthembeka kwexesha elide (ezifana neeyure ezingama-2000 zomthwalo opheleleyo wobushushu obuphezulu, ukujikeleza kobushushu, njl.njl.) kwee-capacitors zayo ze-MPS series kwiiprojekthi ze-AI server zabavelisi abaninzi abaphambili beeseva, besebenza njengokuxhasa okuqinileyo ukusebenza kwemveliso yayo kunye nokuthembeka.
Q20:
Umbuzo: Xa sijonga amaxesha eprojekthi kunye neendleko zempahla, kufuneka sivavanye ukuqinisekiswa komthamo kunye nokuzinza kokuhanjiswa kwababoneleli abatsha be-capacitor. Loluphi ulwazi olubalulekileyo esifanele siluqokelele kubaboneleli ngexesha loqhagamshelwano lokuqala ukuze sivavanye amandla abo okuhambisa izinto?
Impendulo: Sifanele sigxile ekuqondeni: 1) Umthamo wenyanga/wonyaka woluhlu lwemveliso oluhambelanayo; 2) Umjikelo wokuhanjiswa oqhelekileyo wangoku; 3) Ingaba bayayixhasa na iingqikelelo eziqhubekayo kunye nezivumelwano zokubonelela zexesha elide; 4) Imigaqo-nkqubo yesampulu kunye nobungakanani beodolo encinci. Umzekelo, i-ymin idla ngokuba nomthamo owaneleyo, amaxesha okuhambisa aqikelelweyo (umz., iiveki ezi-8-10) kwiimveliso ezicwangcisiweyo ezifana nothotho lwe-MPS, kwaye inokubonelela ngenkxaso yesampulu eguquguqukayo kunye nemigaqo yorhwebo ukuhlangabezana neemfuno zophuhliso lweprojekthi yabathengi kunye nemveliso enkulu.
Ixesha lokuthumela: Feb-03-2026