Gịnị bụ nkịtị inductors | DỊKWA MMA

Dị ka resistors na capacitors, ndị na-arụpụta ihe bụ otu n'ime ngwaọrụ ndị na-agafe agafe na-ejikarị eme ihe na nhazi sekit. Inductor bụ ihe nchekwa nchekwa ume, nke nwere ike ịtụgharị ike eletrik na ike magnetik n'ime ibe ya, ma na-ekerekwa òkè na nzacha, ịgbagharị, na-eme ka ọ dị ugbu a na igbochi nnyonye anya electromagnetic na sekit. Mgbe a na-eji inductor eme ihe na sekit a, ị ga-amarịrị paramita ndị a nke inductor!

Mgbe ị na-elele ụfọdụ schematics sekit, ị ga-ahụ na a na-eji akara inductance na sekit. Mgbe m lechara anya na paramita dị na akara ahụ, enwere m mgbagwoju anya karị. Kedu mgbe unit inductor ghọrọ OHM? N'ezie, nke a abụghị ihe inductor, kama ọ bụ magnetik bead. Ọzọ, anyị ga-agbakwunye ụfọdụ ihe ọmụma banyere ọdịiche na njikọ dị n'etiti inductors na magnetik beads.

Buru ụzọ kọwaa ọrụ magnetik beads na sekit, ọrụ kasị ukwuu nke usoro ihe ndọta magnetik na akara nnyefe mgbaàmà bụ ịkwụsị mgbaàmà nnyonye anya, site n'echiche nke ụkpụrụ, bead magnet nwere ike ịdị ka onye inductor, rịba ama na nke a. bụ inductor dị mfe. Ezigbo eriri inductor ekesala ikike, ya bụ, inductor anyị na-eji ya na inductor jikọtara ya na capacitor ekesa.

Nchịkọta nke Inductance

N'ụzọ doro anya, iji gbochie mgbaàmà nnyonye anya a na-eduzi, a na-achọ ka ọnụ ọgụgụ nke inductance buru ibu, nke ka mma, ma maka inductor eriri igwe , nke ka ukwuu nke inductance, ka ikesa ikesa nke eriri inductor, na mmetụta nke abụọ ahụ. ga-akagbu ibe ya.

Na mbido, mgbochi nke eriri igwe inductor na-abawanye na mmụba nke ugboro ole, ma mgbe mgbochi ya na-abawanye na nke kachasị, mgbochi ahụ na-ebelata ngwa ngwa na mmụba nke ugboro ugboro, nke bụ n'ihi mmetụta nke ikesa ekesa yiri ya. Mgbe impedance na-abawanye na nke kachasị, ọ bụ ebe ikesa ikesa nke eriri inductor na-adaba na inductor kwekọrọ na ya. Ka inductance nke eriri igwe inductor na-abawanye, na-agbadata ugboro ole resonant. Ọ bụrụ na anyị chọrọ imeziwanye oge nkwụsịtụ, mgbe ahụ nhọrọ ikpeazụ nke eriri igwe inductor ga-abụrịrị njedebe kacha nta, bead magnetik, ya bụ, inductor site na obi, bụ eriri inductor na-erughị 1 ntụgharị. Otú ọ dị, ikesa ikesa nke inductor site-core dị ọtụtụ ugboro ruo ọtụtụ ugboro dị ntakịrị karịa nke otu loop inductor coil, ya mere oge ọrụ nke inductor site na obi dị elu karịa nke otu-loop inductor coil. . Inductance nke bead magnetik na-adịkarị obere, ihe dị ka n'etiti microbeads ole na ole na ọtụtụ microbeads. Ojiji ọzọ a na-eji bead magnetik bụ ime ihe nchekwa electromagnetic, mmetụta nchekwa elektrọnịkị ya dị mma karịa mmetụta mkpuchi mkpuchi nke waya, nke ọtụtụ mmadụ anaghị etinye uche na ya. Usoro eji eme ihe bụ ikwe ka otu ụzọ wires gafere n'etiti etiti magnetik, yabụ mgbe enwere ọkụ eletrik na-esi na wires abụọ ahụ na-asọpụta, ọtụtụ n'ime oghere magnet ga-etinye uche na bead magnet, na magnetik. ubi agakwaghị amụpụta apụta. N'ihi na oghere magnetik na-emepụta eddy current na magnetik bead, ntụziaka nke eddy ugbu a na-emepụta eriri ọkụ dị nnọọ iche na nke eriri ọkụ dị n'elu nke onye nduzi, nke nwere ike imegide ibe ya. Ya mere, ihe ndọta ahụ nwekwara mmetụta nchebe na mpaghara ọkụ eletrik, ya bụ, bead magnet nwere mmetụta nchebe siri ike na oghere electromagnetic na onye nduzi.

Uru nke iji bead magnetik maka mkpuchi elektrọnịkị bụ na ọ dịghị mkpa ka ọ bụrụ ihe mgbakwasị ụkwụ magnetik, yana enwere ike ịgbanarị nsogbu nke ịkụ ala nke waya mkpuchi chọrọ. Iji bead magnetik dị ka ihe mkpuchi electromagnetic, maka eriri abụọ, ọ dabara na ijikọ inductor suppression na-emekarị n'ahịrị, nke nwere mmetụta nkwụsịtụ siri ike na akara ndabichi nkịtị.

Enwere ike ịhụ na eriri inductor bụ nke a na-ejikarị maka mbelata EMI nke akara nnyonye anya obere oge, ebe a na-eji bead magnet eme ihe maka nkwụsị EMI nke nrịbama nnyonye anya dị elu. Ya mere, maka nkwụsị EMI nke mgbaàmà nnyonye anya obosara, a ghaghị iji ọtụtụ inductor nke ihe dị iche iche mee ihe n'otu oge ka ọ dị irè. Na mgbakwunye, iji kụbie ụkpụrụ nnyonye anya nke EMI na-eduzi, anyị kwesịkwara ịṅa ntị na ikpochapụ ọnọdụ njikọ dị n'etiti inductor na Y capacitor. Y capacitor na suppression inductor kwesịrị ịdị nso dị ka o kwere mee na ntinye nke ọkụ eletrik, ya bụ, ọnọdụ nke nkwụnye ọkụ, na ihe nrụpụta ugboro dị elu kwesịrị ịdị nso dị ka o kwere mee na Y capacitor, ebe Y capacitor. kwesịrị ịdị nso dị ka o kwere mee na waya ala ejikọrọ na ụwa ( waya ala nke eriri ike nke atọ), nke dị irè maka nkwụsị EMI.

Ihe dị n'elu bụ mmeghe nke inductor nkịtị, ọ bụrụ na ịchọrọ ịmatakwu banyere inductor, biko nweere onwe gị ịkpọtụrụ anyị.