Ana amfani da abubuwan inductance na SMD a cikin ƙaramin adadin da'irori. Ana amfani da su ne kawai a ƙarshen fitarwa na ƙarancin wutar lantarki mai sarrafa wutar lantarki na DC. Ana iya amfani da su tare da masu ƙarfin tacewa don samar da da'irar tacewa mai siffar π na CLC. . Ƙimar inductive ta ƙunshi coil guda ɗaya, wasu masu ƙarfin maganadisu (babban inductance), ana bayyana naúrar gabaɗaya a cikin μH da mH, kuma ƙimar da ke gudana a halin yanzu shine ƴan milliamps zuwa milliamps ɗari da yawa.
Menene hanyoyin gano inductor SMD? SMD Garkuwar Inductor Factory don rabawa tare da ku.
SMD inductor ganewa Hanyar, SMD inductor suna samuwa a zagaye, murabba'i da rectangular marufi siffofin, kuma launi ne mafi yawa baki. Tare da inductor na baƙin ƙarfe (ko inductor madauwari), yana da sauƙin ganewa daga bayyanar. Duk da haka, wasu inductor na rectangular sun fi kama da tsattsauran ra'ayi ta fuskar bayyanar. Alamar inductor na guntu akan allon kewayawa ta mai kera inverter ana yiwa alama alama da kalmar L. Siffofin aiki na inductor sun haɗa da inductance, ƙimar Q (ƙimar inganci), juriya na DC, ƙimar halin yanzu, mitar kai, da sauransu. , amma girman inductor na guntu yana da iyaka, kuma yawancin su ana yin su ne kawai tare da inductance, kuma sauran sigogi ba a yi musu alama ba, kuma sau da yawa Hanyar lakafta ta kai tsaye - lakabin a jikin inductor na guntu shine kawai ɓangare na. bayanai na dukan ƙayyadaddun da samfurin, wato, mafi yawan shi ne kawai inductance bayanai.
1. Hanyar gano inductor SMD:
1) Daga bayyanar, kamar inductor mai murabba'i ko madauwari tare da mahimmancin maganadisu, ƙarar ya ɗan fi girma, kuma ana iya ganin magnetic core da coil;
2) Wasu guntu inductor iri ɗaya suke da chip resistors a bayyanar, amma babu lambobi da haruffa da aka yiwa alama, ƙaramar alamar da'ira ce kawai, wanda ke nufin abubuwan haɓakawa;
3) Serial lambobi na abubuwan da ke cikin kewaye ana yawan yiwa alama alama da harafin L, kamar L1, DL1, da sauransu.
4) Akwai alamar inductance, kamar 100.
5) Juriya na AC na inductor mai kyau yana da girma, yayin da juriya na DC ba kome ba ne. Ƙimar juriya da aka auna na kashi mai haɓaka yana da ƙanƙanta sosai, tare da ƙimar juriya kusa da sifili ohms. Tare da lura da aunawa (matsayi da aiki a cikin kewayawa), yana iya bambance ko bangaren na'ura ce ta chip resistor ko inductor, kuma ta tantance bangaren inductive.
6) Yi amfani da gwajin inductance na musamman don cire haɗin abin da ke kewaye da kuma auna inductance.
2. Maye gurbin kuskure:
1) Za a iya cire abubuwan da ke cikin nau'in nau'in guda ɗaya daga allon da'irar sharar gida kuma a canza su
2) Da farko ƙayyade inductance da ƙimar halin yanzu, maye gurbin shi da kayan aikin inductance na yau da kullun, kuma gyara su da kyau.
3) Yin iska, yin maye gurbin inductance, akwai wata wahala a cikin aiki
4) Idan babu wani tasiri mai mahimmanci akan aikin kewayawa, gyaran gaggawa na iya zama ɗan gajeren lokaci
Shawarar Chip Inductor waɗanda ƙarin mutane ke buƙata
Yadda za a zabi inductor bisa ga bukatun ku
Lokacin zabar samfur, koyaushe zaɓi samfurin bisa buƙatun waje. Hakanan gaskiya ne ga Inductance gyare-gyaren gyare-gyaren gyare-gyaren gyare-gyare , kana buƙatar la'akari da abubuwan, sa'an nan kuma zabar inductor guntu guda ɗaya da ya dace, masu ba da kariya ga guntu, da kuma inductor ikon guntu. Akwai abubuwa da yawa da suka shafi guntu inductor. Bari mu yi magana game da yadda za a zabi guntu inductor bisa ga bukatun.
1. Zaɓi inductor bisa ga bukatun
Lokacin zabar guntu inductor don aikace-aikacen wutar lantarki, mahimman abubuwa uku suna buƙatar la'akari: girma da girma, kuma na uku shine girman. Filin allon kewayawa a cikin wayoyin hannu yana da ƙima, musamman yayin da ake ƙara ayyuka kamar ƴan wasa, TV da bidiyo a wayar. Haɓaka aikin kuma zai ƙara zana baturin na yanzu. Don haka, na'urorin da aka saba amfani da su ta hanyar masu sarrafa layi ko haɗa kai tsaye zuwa batura suna buƙatar mafita mai ƙarfi. Mataki ɗaya zuwa ga mafi girman ƙarfin bayani shine a yi amfani da mai jujjuya buck ɗin maganadisu.
Bugu da ƙari, girman girman, babban ma'auni na inductance shine ƙimar inductance a mitar sauyawa, DC impedance na coil, ƙarin jikewa na yanzu, ƙarin RMS na yanzu, ESR impedance sadarwa da factor. Dangane da aikace-aikacen, yana da mahimmanci cewa zaɓin nau'in inductor yana da kariya ko rashin garkuwa.
Mai kama da son zuciya na DC a cikin capacitor, Inductor A's 2.2µH na iya bambanta sosai da na mai siyarwa B. Dangantakar da ke tsakanin ƙimar inductance da DC halin yanzu na guntu inductor a cikin kewayon zafin jiki mai dacewa yana da mahimmanci mai mahimmanci, wanda dole ne a samo shi daga masana'anta. Ana iya samun ƙarin jikewa na yanzu (ISAT) akan wannan lanƙwan. Ana bayyana ISAT gabaɗaya azaman faɗuwar darajar inductance. DC halin yanzu lokacin da adadin shine 30[[%]] na ƙarin ƙimar. Wasu masana'antun inductor ba su da ISAT na yau da kullun. Wataƙila sun ba da halin yanzu na DC lokacin da zafin jiki ya kai 40 ° C sama da yanayin yanayi.
Lokacin da mitar sauyawa ya wuce 2MHz, wajibi ne a kula da asarar sadarwa na inductor. ISAT da DCR na inductor na masana'anta daban-daban da aka jera a cikin daidaitattun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun bayanai na iya samun maɓalli daban-daban na sadarwa a mitar sauyawa, wanda ke haifar da bayyanannen iko ƙarƙashin nauyi mai haske. bambanci. Wannan yana da mahimmanci don inganta rayuwar baturi a cikin tsarin wutar lantarki mai ɗaukar nauyi, waɗanda ke ciyar da mafi yawan lokutan su a cikin barci, jiran aiki, ko yanayin rashin ƙarfi.
Tunda masana'antun inductor na guntu ba safai suke ba da bayanan ESR da Q factor ba, masu zanen kaya yakamata su tambaye su. Dangantakar da ke tsakanin inductance da na yanzu da masana'anta ke bayarwa galibi ana iyakance su zuwa 25 ° C, don haka yakamata a sami bayanan da suka dace a cikin kewayon zafin aiki. Mafi yawan zafin jiki shine 85 ° C.
Nasiha Karatu
Kwarewa a samar da iri dabam dabam launi zobe inductors, rataye inductors, a tsaye inductors, taži inductors, faci inductors, mashaya inductors, kowa yanayin coils, high-mita gidajen wuta da sauran Magnetic aka gyara.
Lokacin aikawa: Satumba-02-2022