Izingxenye ze- SMD inductance zisetshenziswa enanini elincane lamasekethe. Asetshenziswa kuphela ekugcineni kokuphumayo kwamandla kagesi aphansi we-DC. Angasetshenziswa kanye nama-capacitor okuhlunga ukwenza umjikelezo wokuhlunga omise okwe-π we-CLC. . I-elementi ye-inductive yakhiwe ikhoyili eyodwa, enye inomongo kazibuthe (i-inductance enkulu), iyunithi ngokuvamile ivezwa ngo-μH kanye ne-mH, futhi inani lamanje elijikelezayo lingama-milliamp ambalwa ukuya kuma-milliamp angamakhulu ambalwa.
Yiziphi izindlela zokuhlonza zama-inductors e-SMD? I-SMD Shielded Power Inductor Factory ukwabelana nawe.
Indlela yokuhlonza i-inductor ye-SMD, ama-inductors e-SMD ayatholakala ngamafomu okupakisha ayindilinga, ayizikwele nakanxande, futhi umbala ngokuvamile umnyama. Ngama-iron core inductors (noma ama-inductor ayindilinga), kulula ukukubona ngokubukeka. Kodwa-ke, amanye ama-inductors angama-rectangular afana nama-chip resistors ngokuya ngokubukeka. Ilebula ye-chip inductor ebhodini lesifunda ngumkhiqizi we-inverter imakwe ngegama elithi L. Imingcele yokusebenza ye-inductor ihlanganisa i-inductance, inani le-Q (ikhwalithi yekhwalithi), ukumelana kwe-DC, ukulinganisa okwamanje, imvamisa ye-self-resonant, njll. , kodwa usayizi we-chip inductor unomkhawulo, futhi iningi lawo limakwe kuphela nge-inductance, futhi amanye amapharamitha awamakwanga, futhi ngokuvamile ayindlela yokulebula engaqondile - ukulebula emzimbeni we-chip inductor kuyingxenye kuphela imininingwane yayo yonke imininingwane kanye nemodeli, okungukuthi, iningi layo liwulwazi lwe-inductance kuphela.
1. Indlela yokuhlonza i-inductor ye-SMD:
1) Kusukela ekubukeni, okufana nesikwele noma i-inductor eyindilinga enomongo kazibuthe, ivolumu inkulu kancane, kanti ingqikithi kazibuthe nekhoyili ingabonakala;
2) Amanye ama-chip inductors afana nama-chip resistors ngokubukeka, kodwa azikho izinombolo nezinhlamvu ezimakiwe, kuphela uphawu oluncane lwendilinga, okusho izingxenye ze-inductance;
3) Izinombolo ze-serial zezingxenye ezisesekethe zivame ukuphawulwa ngohlamvu L, njenge-L1, DL1, njll.
4) Kukhona ilebula ye-inductance, efana ne-100.
5) Ukumelana kwe-AC kwe-inductor ekahle kukhulu, kuyilapho ukumelana ne-DC kunguziro. Inani elilinganisiwe lokumelana le-elementi ye-inductive lincane kakhulu, linenani lokumelana elisondele ku-zero ohms. Ngokubuka nokulinganisa (indawo kanye nomsebenzi kusekethe), ingahlukanisa ukuthi ingxenye iyisinqamuleli se-chip noma i-chip inductor, futhi inqume ingxenye ye-inductive.
I-6) Sebenzisa umhloli okhethekile we-inductance ukuze unqamule ingxenye kusuka kumjikelezo futhi ulinganise ukufakwa kwayo.
2. Ukushintshwa kwephutha:
I-1) Izingxenye zohlobo olufanayo zingasuswa ebhodini lesifunda semfucuza futhi zishintshwe
2) Okokuqala nquma i-inductance kanye nenani lamanje elijikelezayo, esikhundleni salo ufake izingxenye ezijwayelekile zomthofu, futhi uzilungise kahle.
I-3) Ukuziphendulela, ukwenza ama-inductance esikhundleni, kunobunzima obuthile ekusebenzeni
I-4) Uma ungekho umthelela osobala ekusebenzeni kwesifunda, ukulungiswa kwezimo eziphuthumayo kungenziwa okwesikhashana
Ama-Chip Inductors Anconyiwe Adingwa Abantu abaningi
Indlela yokukhetha i-inductor ngokwezidingo zakho
Lapho ukhetha umkhiqizo, khetha njalo umkhiqizo ngokusekelwe ezidingweni zangaphandle. Okufanayo kuyiqiniso nge- Integrated molding chip inductance , udinga ukucabangela izici, bese ukhetha ama-chip inductors afanelekile wocezu olulodwa, ama-chip inductors avikelekile, nama-chip inductors amandla. Kunezici eziningi ezithinta i-chip inductor. Ake sikhulume ngendlela yokukhetha i-chip inductor ngokuya ngezidingo.
1. Khetha i-inductor ngokwezidingo
Lapho ukhetha i-chip inductor yesicelo samandla aphathekayo, amaphuzu amathathu abaluleke kakhulu adinga ukucatshangelwa: usayizi nosayizi, kanti okwesithathu ubukhulu. Isikhala sebhodi lesifunda kumaselula siphezulu kakhulu, ikakhulukazi njengoba imisebenzi efana nezidlali, ama-TV nevidiyo yengezwa ocingweni. Ukwenyuka kokusebenza kuzokwandisa nokudonsa kwamanje kwebhethri. Ngakho-ke, amamojula abekade enikwa amandla izilawuli zemigqa noma axhumeke ngqo kumabhethri adinga izixazululo zamandla aphezulu. Isinyathelo esisodwa esibheke kusixazululo samandla aphezulu ukusebenzisa isiguquli semali kazibuthe.
Ngokungeziwe kusayizi, imibandela eyinhloko ye-inductance yinani le-inductance ku-frequency yokushintsha, i-DC impedance yekhoyili, i-saturation yamanje eyengeziwe, i-RMS yamanje eyengeziwe, i-ESR ye-impedance yokuxhumana kanye nesici. Ngokuya ngesicelo, kubalulekile futhi ukuthi ukukhetha kohlobo lwe-inductor kuvikelwe noma kungavinjelwa.
Ngokufanayo nokuchema kwe-DC ku-capacitor, i-Vendor A's 2.2µH inductor ingase yehluke kakhulu kweye-Vendor B. Ubudlelwano phakathi kwevelu ye-inductance kanye ne-DC yamanje ye-chip inductor ebangeni lokushisa elifanele buyijika elibaluleke kakhulu, okufanele litholwe kumkhiqizi. I-saturation current eyengeziwe (ISAT) ingatholakala kuleli jika. I-ISAT ngokuvamile ichazwa njengokwehla kwevelu ye-inductance. I-DC yamanje uma inani lingu-30[[%]] yenani elengeziwe. Abanye abakhiqizi be-inductor abanayo i-ISAT evamile. Cishe banikeze i-DC yamanje lapho izinga lokushisa lalingu-40°C ngaphezu kwezinga lokushisa elizungezile.
Lapho imvamisa yokushintsha idlula i-2MHz, kuyadingeka ukunaka ngokukhethekile ukulahleka kokuxhumana kwe-inductor. I-ISAT kanye ne-DCR yama-inductors abakhiqizi abahlukene abasohlwini lokucaciswa okujwayelekile bangase babe nezithiyo zokuxhumana ezihluke kakhulu emazingeni okushintshashintsha, okuholela emandleni asobala ngaphansi komthwalo wokukhanya. umehluko. Lokhu kubalulekile ukuze kuthuthukiswe impilo yebhethri kumasistimu wamandla aphathekayo, achitha isikhathi esiningi elele, elindile, noma kumodi yamandla aphansi.
Njengoba abakhiqizi be-chip inductor bengavamile ukunikeza ulwazi lwe-ESR ne-Q factor, abaklami kufanele bababuze. Ubudlelwano phakathi kwe-inductance kanye nokwamanje okunikezwa umkhiqizi kuvame ukukhawulelwa ku-25°C, ngakho-ke idatha efanelekile ngaphakathi kwebanga lokushisa lokusebenza kufanele kutholakale. Isimo esibi kakhulu ngokuvamile singu-85°C.
Ncoma Ukufunda
Onguchwepheshe ekukhiqizeni izinhlobo ezahlukene Indandatho yombala inductors, inductors zobuhlalu, inductors mpo, tripod inductors, patch inductors, ibha inductors, imodi evamile ohlobo, high-imvamisa transformers nezinye izingxenye kazibuthe.
Isikhathi sokuthumela: Sep-02-2022