Kusokoneza Ma Capacitors Olimba a YMIN a Low ESR: Kuchokera ku Ubwino wa Ma Parameter kupita ku Magwiridwe Abwino Padziko Lonse, Momwe Munga "Kuziziritsira ndi Kuwongolera Kuchita Bwino" mu Kapangidwe ka Power Supply?

Chiyambi

Okondedwa mainjiniya amagetsi, kodi mudayamba mwavutikapo ndi ma capacitor okwera kwambiri komanso kutentha kwambiri mukakonza ma prototypes? Makamaka pakufunafuna mphamvu zambiri masiku ano, mphamvu za ESR ndi mphamvu za ma capacitor a ripple zakhala zopinga zosaoneka zomwe zimatsimikiza kupambana kapena kulephera kwa kapangidwe. Nkhaniyi itenga mndandanda wa YMIN wa VPX/VPT ngati chitsanzo cha kusanthula kwaukadaulo kwakuya, kuwonetsa momwe umathetsera mavuto awa ndi deta yeniyeni.

Yankho ndi Ubwino wa YMIN

Potengera chitsanzo cha 65W 2C2A GaN fast charger, imafunika kuthana ndi ma frequency osinthira mpaka mazana angapo a kHz pamalo otsekedwa. Ngati ma capacitor wamba olimba (ESR pafupifupi 40mΩ) agwiritsidwa ntchito, kutayika kwawo pama frequency apamwamba sikuyenera kunyalanyazidwa. Tawona kuti pansi pa kutulutsa kwathunthu kwa katundu, kutentha kwapakati kwa ma capacitor otere kumatha kupitirira 85℃, zomwe sizimangobweretsa zoopsa zachitetezo cha kutentha komanso zimayambitsa kuwonongeka kwa capacitance ndi ESR kuwonjezeka chifukwa cha kutentha kwambiri, zomwe zimadzutsa mafunso okhudza kudalirika kwa nthawi yayitali.

Vuto lalikulu lili mu ESR. Kutaya mphamvu P_loss = I_rms² × ESR. Pamene kusintha kwa ma frequency kukwera kufika pa 100kHz, capacitive reactance (Xc) imachepa kwambiri, ndipo ESR imakhala gawo lalikulu la impedance. Potengera capacitor yokhala ndi ESR ya 40mΩ yokhala ndi 2A ripple current mwachitsanzo, kutayika kwake kwa selo limodzi kumakhala kokwera kufika pa 0.16W. Mu malo ochepa, kutentha kumeneku kumakhala kovuta kwambiri kutha.Yankho la YMINamachepetsa ESR kufika pa 20mΩ, kuchepetsa kutayika kufika pa 0.08W pansi pa mikhalidwe yomweyi, kuchepetsa mwachindunji theka la kupanga kutentha ndikuthetsa vuto la kukwera kwa kutentha.

- Yankho la YMIN ndi Ubwino wa Njira: Kupanga Zinthu Mwatsopano Kawiri mu Zipangizo ndi Kapangidwe -

Kutsika kwa ESR kwa YMIN sikuti ndi mwangozi, koma zotsatira za uinjiniya wadongosolo:

Kupangidwa kwa Electrolyte: Pogwiritsa ntchito polima yopangidwa ndi patent yokhala ndi ma conductivity apamwamba, ma ionic conductivity amawonjezeka ndi oposa 30%, zomwe zimapangitsa kuti ma ion migration impedance azikhala ochepa kwambiri pama frequency apamwamba.

Kukonza Zolembera za Anode: Kudzera mu etching yamagetsi, kapangidwe kamene kamaoneka ngati ngalande kamapangidwa, zomwe zimapangitsa kuti malo abwino kwambiri azitha kugwira ntchito bwino komanso kukonza mphamvu yotuluka nthawi yomweyo.

Kapangidwe kolimba mkati: Kapangidwe kolimba kolimba mkati mwa ndondomeko yonse, kuyambira pa aluminiyamu ndi pulagi ya rabara mpaka ku zitsulo zolumikizira, kumachepetsa kukana kosafunikira kwa tizilombo toyambitsa matenda komanso kulowerera kwa mpweya.

- Chitsimikizo cha deta ndi kudalirika: Lolani deta ilankhule yokha -

Tinayerekeza deta yoyesera ya ma capacitor olimba a YMIN VPX 25V 100μF asanayambe komanso atagwiritsa ntchito soldering. Chiŵerengero chonse cha kusintha kwa ESR chinayang'aniridwa mkati mwa mtundu wina. Kuwonjezeka kwa ESR kunali 15.1% yokha. Izi zikuwonetsa kukhazikika kwa kutentha kwa chinthucho komanso kudalirika kwa njira, ndikutsimikizira magwiridwe antchito amagetsi okhazikika ngakhale SMT itapanga.

Zitsanzo za ntchito zenizeni

Mwachitsanzo, chojambulira cha Baseus 65W GaN chofulumira chimagwiritsa ntchitoMndandanda wa YMIN VPX,Kutulutsa kutentha kwake kogwira mtima komanso kutulutsa kokhazikika kumakwaniritsa bwino magawo a magwiridwe antchito awa mu chinthu chomaliza.

Lipoti la kusokoneza: https://www.chongdiantou.com/archives/359822.html

Mapeto

Kwa mainjiniya omwe akufuna kuchita bwino kwambiri, ESR ya capacitor imodzi ikhoza kukhala chinthu chofunikira kwambiri pakugwira ntchito kwa dongosolo lonse. YMIN Electronics imamvetsetsa bwino izi, komanso malo ake a "Pakugwiritsa ntchito capacitor, pitani kuYMIN ya mayankho"" imachokera ku kuthekera kwake kuthetsa mavuto ovuta aukadaulo. Mwa kupereka zinthu zapamwamba kwambiri zokhala ndi ma ESR otsika ngati 20mΩ, YMIN ikukwaniritsa cholinga chake cha malonda "chosintha opikisana nawo apadziko lonse lapansi ndikukhala kampani yotsogola," kupatsa opanga magetsi am'dziko muno mayankho apamwamba komanso odalirika a zigawo za chip zopangidwa mdziko muno.