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Kedu ihe bụ EMI Electromagnetic Interference

Kedu ihe bụ EMI Electromagnetic Interference
ndabere
A kọwapụtara nnyonye anya eletrọnịkị (EMI) dị ka nnyonye anya eletriki ma ọ bụ magnetik ọ bụla nke na-eweda ma ọ bụ na-egbochi iguzosi ike n'ezi ihe mgbaàmà ma ọ bụ akụkụ na ọrụ nke ngwa eletrọnịkị.nnyonye anya elektrọnik, gụnyere nnyonye anya ugboro redio, na-adabakarị n'ụdị abụọ sara mbara.Ọ na-abụkarị mmadụ na-eme ka ikuku dị warara machibido ya na obere mpaghara nke ụdịdị redio dị iche iche.Hum sitere na ahịrị ọkụ bụ ezigbo ihe atụ nke ikuku ikuku dị warara.Ha na-aga n'ihu ma ọ bụ na-adịte aka.Broadband radieshon nwere ike ịbụ nke mmadụ mere ma ọ bụ eke.Ha na-emetụta obosara mpaghara nke ụdịdị dị iche iche nke electromagnetic.Ha bụ ihe omume ya n'otu oge bụ nke na-enweghị usoro, nke na-adịghị adịte aka, ma ọ bụ na-aga n'ihu.Ihe niile site na ọkụ na-adaba na kọmputa na-emepụta radieshon brọdband.
EMI isi mmalite
Ntinye aka electromagnetic nke EMI nzacha na-emekọ ihe nwere ike ịbịa n'ụzọ dị iche iche.N'ime ngwa eletriki, nnyonye anya nwere ike ime n'ihi mgbochi, na-atụgharị azụ na wires jikọtara ọnụ.Enwere ike ime ya site na mgbanwe voltaji na ndị nduzi.A na-emepụta EMI na mpụga site na ike oghere dị ka ọkụ ọkụ anyanwụ, eriri ọkụ ma ọ bụ ekwentị, ngwa ngwa na ahịrị ọkụ.Ọtụtụ n'ime EMI na-esite n'ahịrị ọkụ ma bufee ya na akụrụngwa.Ihe nzacha EMI bụ ngwaọrụ ma ọ bụ modul ime emebere iji belata ma ọ bụ kpochapụ ụdị nnyonye anya ndị a.
EMI nzacha
Na-abanyeghị n'ime sayensị siri ike, ọtụtụ nnyonye anya electromagnetic dị n'ogo dị elu.Nke a pụtara na mgbe ị na-atụ mgbama dị ka sine ife, oge ga-adị nso.Ihe nzacha EMI nwere ihe abụọ, capacitor na inductor, na-arụkọ ọrụ ọnụ iji kụchie akara ndị a.Capacitors na-egbochi ọwa mmiri na-aga n'ihu ma na-agafe mmiri iyi nke na-ebubata nnukwu nnyonye anya electromagnetic na ngwaọrụ ahụ.Inductor bụ n'ezie obere electromagnet nke na-ejigide ike na oghere magnetik mgbe ihe dị ugbu a na-agafe na ya, na-ebelata voltaji n'ozuzu ya.Capacitors eji na ihe nzacha EMI, nke a na-akpọ shunt capacitors, na-edobe mmiri ugboro ugboro n'ime ebe dịpụrụ adịpụ site na sekit ma ọ bụ akụrụngwa.A shunt capacitor na-enye nri ugboro ugboro ugbu a / nnyonye anya na inductor etinyere n'usoro.Ka ihe dị ugbu a na-agafe na inductor ọ bụla, ike ma ọ bụ voltaji na-adaba.Dị ka o kwesịrị, inductor na-ebelata nnyonye anya na efu.Nke a na-akpọkwa mkpirisi n'ala.A na-eji ihe nzacha EMI na ngwa dị iche iche.A na-ahụ ha n'ime akụrụngwa ụlọ nyocha, akụrụngwa redio, kọmpụta, akụrụngwa ahụike, na ngwa agha.
Mụta maka azịza nzacha EMI/EMC anyị

DAC1 atọ agba emi filter
Capacitors na-egbochi ọwa mmiri na-aga n'ihu ma na-agafe mmiri iyi nke na-ebubata nnukwu nnyonye anya electromagnetic na ngwaọrụ ahụ.Inductor bụ n'ezie obere ngwaọrụ electromagnetic nke na-ejigide ike n'ime oghere magnetik mgbe ihe dị ugbu a na-agafe na ya, na-ebute ọdịda voltaji n'ozuzu ya.Capacitors eji na ihe nzacha EMI, nke a na-akpọ shunt capacitors, na-edobe mmiri ugboro ugboro n'ime ebe dịpụrụ adịpụ site na sekit ma ọ bụ akụrụngwa.A shunt capacitor na-enye nri ugboro ugboro ugbu a / nnyonye anya na inductor etinyere n'usoro.Ka ihe dị ugbu a na-agafe na inductor ọ bụla, ike ma ọ bụ voltaji na-adaba.Dị ka o kwesịrị, inductor na-ebelata nnyonye anya na efu.Nke a na-akpọkwa mkpirisi n'ala.A na-eji ihe nzacha EMI na ngwa dị iche iche.
Mụtakwuo makaDREXSEMI nzacha ebe a.


Oge nzipu: Dec-20-2022