SMD inductance zvikamu zvinoshandiswa munhamba shoma yemasekete. Ivo vanongoshandiswa painobuda kupera kweyakaderera-voltage DC control magetsi emagetsi. Iwo anogona kushandiswa pamwe chete nemafirita capacitors kugadzira π-yakaumbwa sefa yedunhu reCLC. . Iyo inductive element inoumbwa necoil imwe chete, imwe ine magineti core (hombe inductance), iyo unit inowanzo ratidzwa mu μH uye mH, uye inotenderera kukosha kwazvino mamirimita mashoma kune akati wandei mazana emamirimita.
Ndedzipi nzira dzekuzivikanwa dzeSMD inductors? SMD Shielded Power Inductor Factory yekugovana newe.
SMD inductor identification nzira, SMD inductors inowanikwa mukutenderera, sikweya uye rectangular kurongedza mafomu, uye ruvara rwakanyanya dema. Nesimbi core inductors (kana denderedzwa inductors), zviri nyore kuziva kubva pakuonekwa. Nekudaro, mamwe rectangular inductors akafanana ne chip resistors maererano nechitarisiko. Mucherechedzo we chip inductor pabhodhi redunhu nemugadziri we inverter akanyorwa neshoko L. Zvishandiso zvekushanda zveinductor zvinosanganisira inductance, Q value (quality factor), DC resistance, rated current, self-resonant frequency, nezvimwewo. , asi saizi ye chip inductor ishoma, uye mazhinji acho anongoratidzwa chete neiyo inductance, uye mamwe ma parameter haana kunyorwa, uye kazhinji ari Indirect labeling nzira - iyo label pamutumbi we chip inductor inongova chikamu che ruzivo rwese kutsanangurwa uye modhi, ndiko kuti, mazhinji acho ingori iyo inductance ruzivo.
1. SMD inductor identification nzira:
1) Kubva pakuonekwa, senge sikweya kana denderedzwa inductor ine magineti musimboti, vhoriyamu yakakura zvishoma, uye iyo magineti core uye coil inogona kuonekwa;
2) Mamwe ma chip inductors akafanana ne chip resistors muchitarisiko, asi hapana manhamba nemabhii akamakidzwa, anongova diki denderedzwa chiratidzo, zvinoreva inductance zvikamu;
3) Nhamba dzakateedzana dzezvikamu mudunhu dzinowanzo kunyorwa netsamba L, senge L1, DL1, nezvimwe.
4) Kune inductance label, yakadai se100.
5) Iyo AC kuramba yeakanaka inductor yakakura, nepo DC kuramba iri zero. Iyo yakayerwa kupikisa kukosha kweiyo inductive element idiki zvakanyanya, ine kukosha kwekupikisa pedyo ne zero ohms. Nekutarisa uye kuyerwa (chinzvimbo uye basa mudunhu), inogona kusiyanisa kana chikamu chiri chip resistor kana chip inductor, uye kuona iyo inductive chikamu.
6) Shandisa yakakosha inductance tester kuti ubvise chikamu kubva kudunhu uye kuyera inductance yayo.
2. Kutsiva kukanganisa:
1) Zvikamu zvemhando imwechete zvinogona kubviswa kubva kumarara edunhu bhodhi uye kuchinjwa
2) Kutanga tarisa iyo inductance uye inotenderera yazvino kukosha, itsive neyakajairwa leaded inductance zvikamu, uye zvigadzirise zvakanaka.
3) Self-mhepo, kugadzira inductance zvinotsiva, pane kumwe kuoma mukushanda
4) Kana pasina mhedzisiro iri pachena pakuita kwedunhu, kugadzirisa kwekukurumidzira kunogona kuve kwenguva pfupi-inotenderera
Yakakurudzirwa Chip Inductors Inodiwa Nevanhu Vazhinji
Nzira yekusarudza inductor maererano nezvaunoda
Paunosarudza chigadzirwa, nguva dzose sarudza chigadzirwa chinoenderana nezvinodiwa zvekunze. Izvi zvakafanana kune Integrated molding chip inductance , unofanirwa kufunga nezvezvinhu, uye wozosarudza yakakodzera-chipande chip inductors, shielded chip inductors, uye chip simba inductors. Pane zvinhu zvakawanda zvinokanganisa chip inductor. Ngatitaurei nezve nzira yekusarudza chip inductor maererano nezvinodiwa.
1. Sarudza inductor maererano nezvinodiwa
Pakusarudza chip inductor yeinotakurika simba application, matatu akakosha mapoinzi anofanirwa kutariswa: saizi uye saizi, uye yechitatu saizi. Circuit board space munharembozha iri padanho repamusoro, kunyanya semabasa akadai sevatambi, maTV uye vhidhiyo zvinowedzerwa pafoni. Kuwedzera kwekushanda kuchawedzerawo kudhirowa kwazvino kwebhatiri. Naizvozvo, mamodule ayo agara achifambiswa neanear regulator kana akabatana zvakananga kumabhatiri anoda epamusoro-simba mhinduro. Imwe nhanho yekuenda kune yakakwirira simba mhinduro ndeye kushandisa magineti buck converter.
Kuwedzera kune saizi, iyo mikuru maitiro eiyo inductance inductance kukosha painochinja frequency, iyo DC impedance yecoil, iyo yakawedzera saturation ikozvino, iyo yakawedzera RMS ikozvino, iyo yekutaurirana impedance ESR uye chinhu. Zvichienderana nekushandiswa, zvakakoshawo kuti sarudzo yerudzi rweinductor yakadzivirirwa kana isina kuvharwa.
Zvakafanana neDC bias mune capacitor, Vendor A's 2.2µH inductor inogona kunge yakasiyana zvakanyanya kubva kune Vendor B's. Hukama huri pakati peiyo inductance kukosha uye iyo DC ikozvino ye chip inductor mune yakakodzera tembiricha renji ndiyo yakakosha curve, iyo inofanirwa kuwanikwa kubva kumugadziri. Iyo yekuwedzera saturation ikozvino (ISAT) inogona kuwanikwa pane ino curve. Iyo ISAT inowanzotsanangurwa sekudonha kweiyo inductance kukosha. DC iripo kana mari yacho iri 30[[%]] yekuwedzera kukosha. Vamwe vanogadzira inductor havana yenguva dzose ISAT. Vangangove vakapa iyo DC ikozvino apo tembiricha yaive 40 ° C yakakwira kupfuura ambient tembiricha.
Kana iyo frequency yekuchinja ichipfuura 2MHz, zvinodikanwa kubhadhara zvakanyanya kune kurasikirwa kwekutaurirana kweinductor. Iyo ISAT neDCR yemainductors evagadziri vakasiyana vakanyorwa mune yakajairwa yakatarwa inogona kunge iine akasiyana siyana ekutaurirana pamhepo yekuchinja, zvichikonzera simba riri pachena pasi pemutoro wakareruka. musiyano. Izvi zvakakosha kuvandudza hupenyu hwebhatiri mumasisitimu emagetsi anotakurika, ayo anopedza yakawanda yenguva yavo mukurara, yekumira, kana yakaderera-simba modhi.
Sezvo vanogadzira chip inductor vasingawanzo kupa ESR uye Q factor ruzivo, vagadziri vanofanira kuvabvunza ivo. Ukama huri pakati peiyo inductance uye ikozvino inopiwa nemugadziri kazhinji inogumira ku25 ° C, saka data yakakodzera mukati meiyo tembiricha yekushanda inofanirwa kuwanikwa. Nyaya yakaipisisa inowanzova 85 ° C.
Kurudzira Kuverenga
Kushandisa pagadzirwe-siyana ruvara mhete inductors, beaded inductors, kutwasuka inductors, mutiraipodhi inductors, nama inductors, bhaa inductors, zvakajairika muoti Coils, mukuru-kakawanda transformers nezvimwe rinobva zvinoriumba.
Nguva yekutumira: Sep-02-2022