Uyini umehluko phakathi kwe-inductor kanye nobuhlalu obuzibuthe | ULULAME

Kungabonakala ku-impedance isici ijika lobuhlalu kazibuthe ukuthi imvamisa yephoyinti loshintsho iphansi kune-inductance, futhi imvamisa yephoyinti loshintsho iphakeme kunokumelana. Umsebenzi we-inductance ukukhombisa umsindo, kuyilapho ukumelana kudonsa umsindo futhi kuwuguqule ube ukushisa. Yini efana ngayo ama-inductors nobuhlalu obuzibuthe? Uyini umehluko wabo? Masilandele abakhiqizi be-inductor ukuze baqonde!

Umehluko phakathi kwe-inductor nobuhlalu obuzibuthe

1. Izinzwa ziyizingxenye zokugcina amandla, kanti ubuhlalu kazibuthe bangamadivayisi okuguqula amandla (ukusetshenziswa). Izihlungi zingasebenzisa ama-inductors nobuhlalu, kodwa ngezindlela ezihlukene. Ukuhlunga kwe-inductor kuguqula amandla kagesi abe amandla kazibuthe, athinta isekethe ngezindlela ezimbili: ngokuguqula amandla kagesi abuyele kumandla kagesi, futhi ngokukhipha imisebe ngaphandle-njenge-EMI(EMI). Ngaphezu kwalokho, amandla kagesi aguqulwa abe amandla okushisa ngaphandle kokuphazanyiswa kwesibili kumjikelezo.

2. Ukusebenza kwesihlungi se- inductor yefrikhwensi ephansi, kodwa lapho ukusebenza kwesihlungi kudlula u-50MHz, ubuhlalu obuzibuthe busebenzisa ingxenye yabo yokuvimba ukuguqula umsindo wefrikhwensi enkulu ube amandla okushisa, futhi ufinyelele umgomo wokuqeda ukuphakama. -umsindo wefrequency ngokuphelele.

3. Kusukela kusici se-EMC(EMC), ubuhlalu kazibuthe bungaguqula umsindo we-high-frequency ube amandla okushisa, ngakho bunokumelana okuhle nemisebe. Zingamadivayisi asetshenziswa kakhulu e-anti-EMI futhi avame ukusetshenziselwa ukuhlunga amasignali okusebenza komsebenzisi. Isihlungi samandla sewashi lejubane eliphezulu ebhodini.

4. Lapho i-inductor kanye ne-capacitor benza isihlungi sokudlula okuphansi, inhlanganisela yalezi zingxenye ezimbili ingakhiqiza ukuzithokozisa ngoba zombili izingxenye zokugcina amandla; Ubuhlalu obuzibuthe ngamadivaysi okuqeda amandla futhi abukhiqizi ukuzivusa uma usebenza ngama-capacitor.

5. Ngokuvamile, isilinganiso samanje se-inductor esetshenziselwa ukunikezwa kwamandla siphezulu kakhulu, ngakho-ke kumjikelezo wokuphakela amandla odinga amandla aphezulu, njengasetshenziselwe ukuhlunga kwemojula yamandla; Ubuhlalu obuzibuthe ngokuvamile busetshenziselwa kuphela izihlungi zamandla wezinga le-chip (nokho, sekunezilinganiso zamanje ezinkulu emakethe).

6. Kokubili ubuhlalu obukazibuthe nama-inductors anokumelana ne-DC, kuyilapho ukumelana kwe-dc kobuhlalu kazibuthe kuncane kancane kunokusebenza kokuhlunga, ngakho ukucindezela okuhlukile kobuhlalu kazibuthe kuncane uma kusetshenziswa ekuhlungeni amandla.

7. Uma isetshenziselwa ukuhlunga, ukusebenza kwamanje kwe-inductor kungaphansi kwesilinganiso samanje, ngaphandle kwalokho i-inductor ingase ingonakaliswe, kodwa inani le-inductance lizochema.

Indawo evamile ye-inductor kanye nobuhlalu obuzibuthe

1. Ikalwe okwamanje. Uma i-current ye-inductor idlula okwamanje okulinganiselwe, i-inductance izokwehla ngokushesha, kodwa i-inductor ayilimazi ngempela, futhi ukusebenza kwe-magnetic bead yamanje kudlula okwamanje okulinganiselwe, kuzodala umonakalo we-bead magnetic.

2. Ukumelana no-DC. Uma isetshenziswa emgqeni wokunikezwa kwamandla, kukhona okwamanje okuthile emgqeni, uma ukumelana kwe-dc kwe-inductor noma i-magnetic bead ngokwayo kukhulu kakhulu, kuzokhiqiza ukwehla kwe-voltage ethile.Ngakho-ke, khetha amadivaysi anokumelana okuphansi kwe-DC.

3. Ijika lesici sokuvama. Idatha yokukhiqiza yebhola lokungeniswa kanye nebhola elizibuthe linamathiselwe nejika lesici ledivayisi. Ukuze ukhethe idivayisi efanele udinga ukubhekisela ngokucophelela kulawa majika ukuze ukhethe idivayisi elungile. Uma isetshenziswa, qaphela imvamisa yayo yokuzwakala.

Ngenhla ukwethulwa kwama-inductor nobuhlalu kazibuthe, uma udinga ulwazi olwengeziwe mayelana nama-inductors, sicela uthinte abahlinzeki.