Zida za inductance za SMD zimagwiritsidwa ntchito m'mabwalo ochepa. Amangogwiritsidwa ntchito kumapeto kwa magetsi otsika kwambiri a DC. Atha kugwiritsidwa ntchito limodzi ndi ma capacitor a fyuluta kupanga sefa yozungulira ngati π ya CLC. . The inductive element imapangidwa ndi koyilo imodzi, ina yokhala ndi maginito core (inductance yayikulu), unit nthawi zambiri imawonetsedwa mu μH ndi mH, ndipo mtengo wozungulira pano ndi ma milliamp angapo mpaka mazana angapo mamilimita.
Kodi njira zozindikiritsira za ma SMD inductors ndi ziti? SMD Shielded Power Inductor Factory kuti agawane nanu.
Njira yozindikiritsira inductor ya SMD, ma inductors a SMD amapezeka mumitundu yozungulira, masikweya ndi makona anayi, ndipo mtundu wake ndi wakuda kwambiri. Ndi chitsulo core inductors (kapena zozungulira inductors), n'zosavuta kuzindikira ndi maonekedwe. Komabe, ma inductors ena amakona anayi amakhala ngati ma chip resistors potengera mawonekedwe. Chizindikiro cha chip inductor pa bolodi la dera ndi wopanga inverter amalembedwa ndi mawu L. Magawo ogwira ntchito a inductor amaphatikizapo inductance, Q mtengo (quality factor), DC kukana, kuvotera panopa, maulendo odzipangira okha, ndi zina zotero. , koma kukula kwa chip inductor ndi kochepa, ndipo ambiri a iwo amangodziwika ndi inductance, ndipo magawo ena samalembedwa, ndipo nthawi zambiri amakhala njira yolembera mosalunjika - kulembera pa thupi la chip inductor ndi gawo chabe la zidziwitso zatsatanetsatane ndi mtundu wonse, ndiye kuti, zambiri ndizongodziwitsa chabe.
1. Njira yozindikiritsa ya SMD inductor:
1) Kuchokera pamawonekedwe, monga chozungulira chozungulira kapena chozungulira chokhala ndi maginito pachimake, voliyumu ndi yokulirapo pang'ono, ndipo maginito apakati ndi koyilo amatha kuwoneka;
2) Ma inductors ena a chip ali ofanana ndi mawonekedwe a chip resistors, koma palibe manambala ndi zilembo zolembedwa, chizindikiro chaching'ono chozungulira, chomwe chimatanthawuza zigawo za inductance;
3) Ziwerengero za zigawo zomwe zili muderali nthawi zambiri zimalembedwa ndi chilembo L, monga L1, DL1, ndi zina.
4) Pali chizindikiro cha inductance, monga 100.
5) Kukaniza kwa AC kwa inductor yabwino ndi yayikulu, pomwe kukana kwa DC ndi zero. Kukanika koyezedwa kwa chinthu chochititsa chidwi ndi chochepa kwambiri, chokhala ndi mtengo wotsutsa pafupi ndi ziro ohms. Ndi kuyang'anitsitsa ndi kuyeza (malo ndi ntchito mu dera), imatha kusiyanitsa ngati chigawocho ndi chip resistor kapena chip inductor, ndikuzindikira chigawo chothandizira.
6) Gwiritsani ntchito choyesa chapadera cha inductance kuti muchotse chigawocho kuchokera ku dera ndikuyesa inductance yake.
2. Kusintha zolakwika:
1) Zigawo zamtundu womwewo zimatha kuchotsedwa pa bolodi lazinyalala ndikusinthidwa
2) Choyamba dziwani kuchuluka kwa ma inductance ndi kufalikira kwaposachedwa, m'malo mwake ndi zigawo wamba za lead inductance, ndikuzikonza bwino.
3) Kudziyendetsa nokha, kupanga zolowa m'malo mwa inductance, pali vuto linalake logwira ntchito
4) Ngati palibe zotsatira zoonekeratu pa kayendetsedwe ka dera, kukonza mwadzidzidzi kungakhale kofupikitsa kwakanthawi
Analimbikitsa Chip Inductors Amene Anthu Ambiri Amafunikira
Momwe mungasankhire inductor malinga ndi zosowa zanu
Posankha mankhwala, nthawi zonse sankhani mankhwala malinga ndi zosowa zakunja. N'chimodzimodzinso Integrated akamaumba chip inductance , muyenera kuganizira zinthu, ndiyeno kusankha yoyenera chidutswa chimodzi chip inductors, shielded chip inductors, ndi chip mphamvu inductors. Pali zinthu zambiri zomwe zimakhudza chip inductor. Tiyeni tikambirane momwe tingasankhire chip inductor malinga ndi zosowa.
1. Sankhani inductor malinga ndi zosowa
Posankha chip inductor kuti mugwiritse ntchito mphamvu yonyamula, mfundo zitatu zofunika kwambiri ziyenera kuganiziridwa: kukula ndi kukula, ndipo chachitatu ndi kukula. Malo a board board m'mafoni am'manja ndi ofunika kwambiri, makamaka ngati magwiridwe antchito monga osewera, ma TV ndi makanema amawonjezeredwa pafoni. Kuwonjezeka kwa magwiridwe antchito kudzawonjezeranso kujambula kwa batri. Chifukwa chake, ma module omwe kale amayendetsedwa ndi owongolera mizere kapena olumikizidwa mwachindunji ndi mabatire amafuna mayankho amphamvu kwambiri. Njira imodzi yopita ku njira yowonjezera mphamvu ndikugwiritsa ntchito maginito otembenuza maginito.
Kuphatikiza pa kukula, njira zazikuluzikulu za inductance ndi mtengo wa inductance pa nthawi yosinthira, DC impedance ya coil, zowonjezera zowonjezera panopa, zowonjezera za RMS panopa, ESR yolumikizira kulumikizana ndi chinthucho. Kutengera kugwiritsa ntchito, ndikofunikiranso kuti kusankha kwa mtundu wa inductor kutetezedwa kapena kusatetezedwa.
Zofanana ndi kukondera kwa DC mu capacitor, Vendor A's 2.2µH inductor ikhoza kukhala yosiyana kwambiri ndi Vendor B's. Ubale pakati pa mtengo wa inductance ndi DC wapano wa chip inductor mumtundu wotentha womwe uyenera kukhala wofunikira kwambiri, womwe uyenera kupezedwa kuchokera kwa wopanga. Zowonjezera zowonjezera zamakono (ISAT) zitha kupezeka pamapindikira awa. ISAT nthawi zambiri imatanthauzidwa ngati kutsika kwa mtengo wa inductance. DC panopa pamene ndalamazo ndi 30[[%]] za mtengo wowonjezera. Ena opanga ma inductor alibe ISAT yokhazikika. Mwinamwake anapereka DC panopa pamene kutentha kunali 40 ° C kuposa kutentha kozungulira.
Pamene kusintha pafupipafupi kupitirira 2MHz, m'pofunika kumvetsera kwambiri kutayika kwa kulankhulana kwa inductor. ISAT ndi DCR ya inductors ya opanga osiyanasiyana omwe atchulidwa muzolemba zokhazikika akhoza kukhala ndi zolepheretsa zoyankhulirana zosiyana pakusintha pafupipafupi, zomwe zimapangitsa mphamvu zodziwikiratu pansi pa katundu wopepuka. kusiyana. Izi ndizofunikira kuti moyo wa batri ukhale wabwino pamakina onyamula mphamvu, omwe amakhala nthawi yayitali akugona, kuyimirira, kapena kugwiritsa ntchito mphamvu zochepa.
Popeza opanga ma chip inductor samapereka zambiri za ESR ndi Q factor, opanga ayenera kuwafunsa. Ubale pakati pa inductance ndi wapano woperekedwa ndi wopanga nthawi zambiri umakhala wochepera 25 ° C, kotero deta yofunikira mkati mwa kutentha kwa ntchito iyenera kupezeka. Choyipa kwambiri nthawi zambiri chimakhala 85 ° C.
Ndibwino Kuwerenga
Okhazikika kupanga mitundu yosiyanasiyana ya mtundu mphete inductors, inductors beaded, inductors umodzi, miyendo itatu inductors, inductors chigamba, inductors bala, coils wamba mode, mkulu-pafupipafupi tiransifoma ndi mbali zina maginito.
Nthawi yotumiza: Sep-02-2022