Kana zvasvika kune inductor, vazhinji vanogadzira vanotya nekuti havazive mashandisiroinductor. Nguva zhinji, kungofanana nekatsi yaSchrodinger: chete kana iwe ukavhura bhokisi, unogona kuziva kana katsi yakafa kana kwete. Chete kana iyo inductor ichitengeswa uye ichishandiswa mudunhu tinogona kuziva kana ichishandiswa nemazvo kana kwete.
Sei inductor yakaoma kudaro? Nekuti inductance inosanganisira electromagnetic munda, uye dzidziso yakakodzera yemagetsi emagetsi uye shanduko pakati pemagineti nemagetsi minda kazhinji ndiyo yakanyanya kuoma kunzwisisa. Hatisi kuzokurukura musimboti we inductance, mutemo weLenz, mutemo weruoko rwerudyi, etc. Kutaura zvazviri, maererano ne inductor, izvo zvatinofanira kuchenjerera zvichiri izvo zvinokosha zveinductor : inductance value, rated current, resonant frequency, quality factor. (Q kukosha).
Kutaura nezve inductance kukosha, zviri nyore kuti munhu wese anzwisise kuti chinhu chekutanga chatinoteerera ndeye "inductance value". Chinokosha ndechokunzwisisa kuti inductance value inomirirei. Ko inductance value inomirirei? Iko inductance kukosha inomiririra kuti iyo yakakura kukosha, iyo yakawanda simba iyo inductance inogona kuchengeta.
Ipapo isu tinofanirwa kufunga nezve basa reiyo yakakura kana diki inductance kukosha uye yakawanda kana kushoma simba rainochengeta. Kana iyo inductance kukosha kunofanirwa kuve hombe, uye kana iyo inductance kukosha kunofanirwa kuve diki.
Panguva imwecheteyo, mushure mekunzwisisa pfungwa yekukosha kwe inductance uye kusanganisa ne theoretical formula ye inductance, tinogona kunzwisisa zvinokanganisa kukosha kweiyo inductance mukugadzirwa kweinductor uye nzira yekuwedzera kana kuderedza.
Iyo yakarongerwa ikozvino zvakare iri nyore kwazvo, senge kupikisa, nekuti iyo inductor yakabatana munhevedzano mudunhu, inoramba ichiyerera ikozvino. Ukoshi hunobvumidzwa hwazvino ndiyo yakayerwa ikozvino.
Resonant frequency haisi nyore kunzwisisa. Iyo inductor inoshandiswa mukuita haifanirwe kunge iri chinhu chakanakira. Ichange iine yakaenzana capacitance, yakaenzana kuramba uye mamwe ma parameter.
Resonant frequency inoreva kuti pazasi peiyi frequency, iwo emuviri maitiro einductor achiri kuita senge inductor, uye pamusoro peiyi frequency, haichaite senge inductor.
Hunhu hwemhando (Q kukosha) hunotonyanya kuvhiringa. Muchokwadi, iyo yemhando yepamusoro inoreva chiyero chesimba rakachengetwa neinductor kune kurasikirwa kwesimba kunokonzerwa neiyo inductor muchiratidzo chechiratidzo pane imwe frequency chiratidzo.
Izvo zvinofanirwa kucherechedzwa pano kuti iyo yemhando yepamusoro inowanikwa pane imwe frequency. Saka kana tichiti kukosha kweQ kweinductor kwakakwira, zvinoreva kuti yakakwirira kupfuura kukosha kweQ yemamwe ma inductors pane imwe frequency point kana imwe frequency band.
Nzwisisa pfungwa idzi uye wozodziunza mukushandiswa.
Inductors anowanzo kupatsanurwa muzvikamu zvitatu mukushandisa: magetsi inductors, high-frequency inductors uye akajairwa inductors.
Kutanga, ngatikurukurei nezvazvosimba inductor.
Power inductor inoshandiswa mumagetsi emagetsi. Pakati pemagetsi inductors, chinhu chinonyanya kukosha kutarisisa kukosha kweiyo inductance uye yakayerwa kukosha kwazvino. Iyo resonance frequency uye quality factor kazhinji haifanire kuve nehanya zvakanyanya.
Sei?Nekutimagetsi inductorsinowanzoshandiswa mumamiriro epasi-frequency uye high-current situations. Rangarira kuti chii chinonzi switching frequency yemagetsi module muboost circuit kana buck circuit? Ingori mazana mashoma eK, uye iyo inokurumidza kushandura frequency ingori mashoma M. Kazhinji kutaura, kukosha uku kwakadzikira zvakanyanya kupfuura iyo yega-resonant frequency yemagetsi inductor. Saka isu hatifanirwe kuve nehanya nezve resonant frequency.
Saizvozvo, mukuchinja kwesimba redunhu, iyo yekupedzisira kuburitsa ndeye DC ikozvino, uye iyo AC chikamu chinotora chikamu chidiki.
Semuenzaniso, kune 1W BUCK simba rekubuda, chikamu cheDC chinotora 85%, 0.85W, uye chikamu cheAC chinoverengera 15%, 0.15W. Ngatitii iyo yemhando yepamusoro Q yemagetsi inductor inoshandiswa ndeye 10, nokuti maererano netsanangudzo yehutano hwemhando ye inductor, ndiyo chiyero chesimba rakachengetwa ne inductor kune simba rinoshandiswa ne inductor. Iyo inductance inoda kuchengetedza simba, asi iyo DC chikamu haigone kushanda. Chete chikamu che AC chinogona kushanda. Ipapo kurasikirwa kwe AC kunokonzerwa neinductor iyi inongova 0.015W, inoverengera 1.5% yesimba rose. Nekuti iyo Q kukosha kwesimba inductor yakakura kudarika gumi, isu kazhinji hatina basa nezvakawanda nezvechiratidzo ichi.
Ngatitaurei nezvazvohigh-frequency inductor.
High-frequency inductors inoshandiswa mumatunhu akakwirira-frequency. Mumatunhu akakwirira-frequency, ikozvino inowanzova duku, asi iyo inowanzodiwa yakawanda. Naizvozvo, zvakakosha zviratidzo zveinductor zvinova resonance frequency uye mhando chinhu.
Resonant frequency uye mhando yemhando hunhu hune hukama zvakanyanya ne frequency, uye kazhinji pane frequency hunhu curve inoenderana navo.
Iyi nhamba inofanira kunzwisiswa. Iwe unofanirwa kuziva kuti iyo yakaderera poindi muiyo impedance dhizaini yeiyo resonance frequency hunhu ndiyo resonance frequency point. Hunhu hunokosha hunoenderana nemhando dzakasiyana-siyana huchawanikwa mufrequency characteric diagram ye quality factor. Ona kana ichikwanisa kuzadzisa zvinodiwa nechikumbiro chako.
Kune akajairwa inductors, isu tinofanirwa kunyanya kutarisa akasiyana maficha ekushandisa, angave anoshandiswa mumagetsi sefa wedunhu kana mune yechiratidzo sefa, yakawanda sei chiratidzo frequency, yakawanda sei ikozvino, zvichingodaro. Kune akasiyana mamiriro, isu tinofanirwa kutarisisa kune akasiyana maitiro avo.
Kana uchifarira, ndapota inzwa wakasununguka kubataMingdakuti uwane mamwe mashoko.
Nguva yekutumira: Feb-17-2023
