Malangizo Posankha Chip Inductors

Chip inductors, omwe amadziwikanso kuti magetsi oyendetsa magetsi, ndi chimodzi mwa zinthu zomwe zimagwiritsidwa ntchito kwambiri pazinthu zamagetsi, zomwe zimakhala ndi miniaturization, khalidwe lapamwamba, kusungirako mphamvu zambiri komanso kukana kochepa.Nthawi zambiri amagulidwa m'mafakitale a PCBA.Posankha chip inductor, magawo ogwirira ntchito (monga inductance, ovotera panopa, khalidwe lapamwamba, etc.) ndi mawonekedwe a mawonekedwe ayenera kuganiziridwa.

I. Zochita za chip inductor

1. The inductance ya makhalidwe osalala: inductor chifukwa cha kusintha kwa kutentha kwa chilengedwe 1 ℃ yopangidwa ndi inductance ya kukonzanso kwa △ L / △ t ndi choyambirira inductance L mtengo poyerekeza ndi mtengo wa inductor kutentha dongosolo a1, a1 = △ L / L△ t.Kuwonjezera inductor kutentha koyenera kudziwa kukhazikika kwake, komanso kuonetsetsa kuti inductance wa makina kugwedera ndi ukalamba chifukwa cha kusintha.

2. Kukaniza mphamvu yamagetsi ndi ntchito yoletsa chinyezi: Pazida zopangira mphamvu zolimbana ndi mphamvu yamagetsi ziyenera kusankha kugwiritsa ntchito phukusi kuti zisavutike ndi voteji yayikulu, nthawi zambiri zida zabwino kwambiri zolimbikitsira voteji, kuteteza chinyezi ndikwabwinoko. .

3. Inductance ndi kupatuka kololedwa: inductance imatanthawuza deta yodziwika bwino ya inductance yomwe imadziwika ndi mafupipafupi omwe amafunidwa ndi muyezo waukadaulo wazinthu.Chigawo cha inductance ndi Henry, millihen, microhen, nanohen, kupatuka kumagawidwa kukhala: F mlingo (± 1%);G mlingo (± 2%);H mlingo (± 3%);J mlingo (± 5%);K mlingo (± 10%);L mlingo (± 15%);M mlingo (± 20%);P mlingo (± 25%);N mlingo (± 30%);chogwiritsidwa ntchito kwambiri ndi J, K, M mlingo.

4. Kuzindikira pafupipafupi: kuzindikiritsa kolondola kwa kuchuluka kwa inductor L, Q, DCR values, kuyenera choyamba kuwonjezera kusintha kwaposachedwa kwa inductor yomwe ikuyesedwa malinga ndi zomwe zaperekedwa, kuyandikira pafupipafupi kwaposachedwa kumayendedwe enieni a inductor iyi. , zabwino kwambiri.Ngati inductor value unit ndi yaying'ono ngati mulingo wa nahum, kuchuluka kwa zida zomwe zimayenera kuyesedwa ziyenera kufufuzidwa kuti zifike ku 3G.

5. Kukaniza kwa DC: Kuphatikiza pa zida zopangira magetsi sizimayesa kukana kwa DC, zida zina zopangira zida malinga ndi kufunikira kofotokozera kukana kwa DC, nthawi zambiri zing'onozing'ono ndi zofunika kwambiri.

6. Kugwira ntchito kwakukulu: nthawi zambiri kumatenga 1.25 mpaka 1.5 nthawi yomwe idavoteledwa ndi inductor monga momwe ntchito ikuyendera, nthawi zambiri iyenera kuchepetsedwa ndi 50% kuti igwiritsidwe ntchito kuti ikhale yotetezeka komanso yodalirika.

II.Chip inductor form factor

Sankhani ma inductors amagetsi osunthika, mfundo zitatu zofunika kuziganizira ndi: kukula, kukula, chachitatu kapena kukula kwake.

Dera loyang'anira dera la mafoni am'manja ndi lolimba kwambiri komanso lamtengo wapatali, makamaka ngati mawonekedwe osiyanasiyana monga osewera a MP3, TV ndi makanema amawonjezedwa pafoni.Kuwonjezeka kwa magwiridwe antchito kumawonjezeranso kugwiritsa ntchito batire pano.Chotsatira chake, ma modules omwe adakhalapo kale ndi owongolera mizere kapena olumikizidwa mwachindunji ku batri amafunikira mayankho ogwira mtima.Njira yoyamba yopezera yankho labwino kwambiri ndikugwiritsa ntchito maginito otembenuza maginito.Monga dzina limatanthawuzira, inductor ikufunika panthawiyi.

Mfundo zazikuluzikulu za inductor, kuwonjezera pa kukula, ndi mtengo wa inductance pakusintha pafupipafupi, DC impedance (DCR) ya koyilo, ovotera machulukitsidwe panopa, ovotera rms panopa, AC impedance (ESR), ndi Q-factor.Kutengera kugwiritsa ntchito, kusankha kwa mtundu wa inductor - wotetezedwa kapena wosatetezedwa - ndikofunikira.

Ma chip inductors amawoneka ofanana m'mawonekedwe, ndipo sizingatheke kuwona mawonekedwe ake.M'malo mwake, mutha kuyeza ma inductance a chip inductors ndi ma multimeter, ndipo kutulutsa kwabwino kwa chip inductors sikungakwaniritse zofunikira, ndipo cholakwikacho chidzakhala chachikulu.