Chip inductor, wanda kuma aka sani da ikon inductor, suna ɗaya daga cikin abubuwan da aka fi amfani da su a cikin samfuran lantarki, waɗanda ke nuna ƙarancin ƙima, inganci, babban ajiyar makamashi da ƙarancin juriya.Yawancin lokaci ana siyan shi a masana'antar PCBA.Lokacin zabar inductor na guntu, yakamata a yi la'akari da sigogin aikin (kamar inductance, ƙimar halin yanzu, ingancin inganci, da sauransu) da nau'in nau'i.
I. Ma'aunin aikin inductor na guntu
1. Inductance na santsi halaye: inductor saboda yanayin yanayin canjin yanayi 1 ℃ kafa ta inductance na bita na △ L / △ t da asali inductance L darajar idan aka kwatanta da darajar inductor zazzabi tsarin a1, a1 = △. L / L △ t.Baya ga inductor zafin jiki coefficient don sanin da kwanciyar hankali, amma kuma tabbatar da kula da inductance na inji vibration da kuma tsufa lalacewa ta hanyar canji.
2. Juriya ga ƙarfin ƙarfin lantarki da aikin rigakafin zafi: Don na'urori masu haɓakawa tare da juriya ga ƙarfin ƙarfin lantarki yana buƙatar zaɓar yin amfani da kayan kunshin don tsayayya da tsananin ƙarfin lantarki, yawanci mafi ƙarancin ƙarfin lantarki juriya inductive na'urorin, aikin rigakafin danshi shima ya fi kyau. .
3. Inductance da ƙetare izini: inductance yana nufin bayanan ƙididdiga na inductance da aka gano ta mita da ake buƙata ta daidaitattun fasahar samfur.Nau'in inductance shine Henry, millihen, microhen, nanohen, an raba karkacewa zuwa: matakin F (± 1%);Matsayin G (± 2%);matakin H (± 3%);matakin J (± 5%);K matakin (± 10%);L matakin (± 15%);M matakin (± 20%);matakin P (± 25%);N matakin (± 30%);Mafi amfani shine matakin J, K, M.
4. Mitar ganowa: ainihin gano adadin inductor L, Q, DCR dabi'u, dole ne a fara ƙara alternating current zuwa inductor da ake gwadawa bisa ga tanadi, kusancin mitar na yanzu zuwa ainihin mitar aiki na wannan inductor. , mafi manufa.Idan na'urar darajar inductor ta yi ƙanƙanta kamar matakin nahum, ana buƙatar auna mitar kayan aikin da za a auna don isa 3G.
5. juriya na DC: Baya ga kayan aikin inductor na wutar lantarki baya gwada juriya na DC, wasu kayan aikin inductor bisa ga buƙatar tantance matsakaicin juriya na DC, yawanci ƙarami mafi kyawawa.
6. babban aiki halin yanzu: yawanci dauki 1.25 zuwa 1.5 sau rated halin yanzu na inductor a matsayin matsakaicin aiki halin yanzu, kullum dole ne a derated da 50% don amfani da su zama mafi aminci da abin dogara.
II.Sigar inductor na guntu
Zaɓi inductor don aikace-aikacen wutar lantarki mai ɗaukar nauyi, mahimman mahimman bayanai guda uku da yakamata ayi la'akari dasu sune: girman girman, girman girman, na uku ko girman girman.
Wurin da'irar wayar salula yana da matsewa kuma yana da daraja, musamman yadda ake saka abubuwa daban-daban kamar na'urar MP3, TV da bidiyo a wayar.Ƙara aikin zai kuma ƙara yawan amfani da baturi na yanzu.Sakamakon haka, na'urorin da aka yi amfani da su a baya ta hanyar masu sarrafa layi ko haɗa kai tsaye zuwa baturi suna buƙatar ingantattun mafita.Mataki na farko zuwa ga ingantaccen bayani shine amfani da mai jujjuya buck ɗin maganadisu.Kamar yadda sunan ke nunawa, ana buƙatar inductor a wannan lokacin.
Babban ƙayyadaddun ƙayyadaddun inductor, ban da girman, ƙimar inductance a mitar sauyawa, DC impedance (DCR) na coil, rated saturation current, rated rms current, AC impedance (ESR), da Q-factor.Dangane da aikace-aikacen, zaɓin nau'in inductor - kariya ko mara kariya - yana da mahimmanci kuma.
Chip inductors suna kama da kamanni iri ɗaya a bayyanar, kuma ba zai yiwu a ga ingancin ba.A gaskiya ma, za ka iya auna inductance na guntu inductors tare da multimeter, da kuma general inductance na matalauta guntu inductor ba zai cika bukatun, da kuma kuskure zai zama mafi girma.
Lokacin aikawa: Dec-10-2021