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Ii-FAQs

Loluphi ulwahlulo kunye neendlela zokucoca?

(1) isihluzo sokupasa esisezantsi

Ukusuka kwi-0 ukuya kwi-F2, iimpawu ze-amplitude-frequency zithe tyaba, ezinokuthi zenze iinqununu ze-frequency ezingaphantsi kwe-F2 zidlule phantse zingagxinwanga, ngelixa ezo ziphakamileyo kune-F2 ziyancipha kakhulu.

(2) isihluzo esiphakamileyo

Ngokuchaseneyo nokucoca okuphantsi, iimpawu zayo ze-amplitude-frequency zisicaba ukusuka kwi-F1 ukuya kwi-infinity.Ivumela amacandelo e-frequency yesiginali engentla kwe-F1 ukuba idlule phantse ingakhange icingelwe, ngelixa ezo zingaphantsi kwe-F1 ziya kuthotywa kakhulu.

(3) isihluzo sokupasa band

I-passband yayo iphakathi kwe-F1 kunye ne-F2.Ivumela amacandelo e-frequency yesiginali ephezulu kune-F1 kwaye isezantsi kune-F2 ukuba idlule ngokungakhathalelwanga, ngelixa amanye amacandelo encitshisiwe.

(4) isihluzo sokumisa ibhanti

Ngokuchaseneyo nokucoca i-bandpass, i-stop band iphakathi kwe-frequencies F1 kunye ne-F2.Ithomalalisa amacandelo e-frequency yesiginali ephezulu kune-F1 kwaye isezantsi kune-F2, kwaye amanye amacandelo e-frequency adlula phantse angajongwanga.

Yintoni isihluzo samandla se-EMI?

I-electromagnetic interference (EMI) isihluzi samandla sisixhobo esingenakwenziwa esenziwe nge-inductance kunye ne-capacitance.Isebenza ngokwenyani njengezihluzo ezimbini zokupasa okusezantsi, enye ithoba isiphazamiso semowudi eqhelekileyo kwaye enye ithomalalisa uphazamiseko lwendlela eyahlukileyo.Ithomalalisa amandla e-rf kwibhendi yokumisa (idla ngokuba mkhulu kune-10KHz) kwaye ivumela amaza ombane ukuba adlule ngokuncitshiswa okuncinci okanye akukho.Izihluzi zamandla e-EMI lukhetho lokuqala kwiinjineli zoyilo lwe-elektroniki ukulawula ukwenziwa kunye ne-radiated EMI.

Uthini umgaqo wokusebenza wesihluzi samandla se-EMI?

(A) Ngokusebenzisa iimpawu ze-capacitor ezidlula i-frequency ephezulu kunye ne-low frequency isolation, i-high frequency interference current yocingo oluphilayo kunye nocingo olungathathi hlangothi lungeniswa kwi-wire yomhlaba (indlela eqhelekileyo), okanye ukuphazanyiswa okuphezulu kwangoku kocingo oluphilayo luyaziswa. kwintambo engathathi hlangothi (indlela eyahlukileyo);

(B) Ukubonakalisa ukuphazamiseka kwe-high-frequency current back back to the interference source by using the impedance features of the inductor coil;

Yintoni ekufuneka iqwalaselwe ekufakeni isihluzi?

Ukunciphisa ukuxhathisa komhlaba, isihluzi kufuneka sifakwe kwindawo yentsimbi eqhubayo okanye siqhagamshelwe kwindawo yomhlaba ekufutshane ngendawo yomhlaba ephothiweyo ukunqanda uthintelo olukhulu lokumisa olubangelwa ziingcingo ezicekethekileyo zokumisa.

Indlela yokukhetha isihluzo samandla?

Izalathisi ezininzi kufuneka ziqwalaselwe xa ukhetha isihluzo somgca wamandla.Eyokuqala i-voltage elinganisiweyo / yangoku, ilandelwa yilahleko yokufaka, ukuvuza kwangoku (isihluzo samandla e-dc asiqwalaseli ubungakanani bokuvuza kwangoku), ubungakanani besakhiwo, kwaye ekugqibeleni luvavanyo lombane.Ekubeni ingaphakathi lesihluzi lihlala liyimbiza, iimpawu zokusingqongileyo aziyongxaki enkulu.Nangona kunjalo, iimpawu zobushushu bezinto zokubumba kunye ne-capacitor yokucoca zinempembelelo ethile kwiimpawu zokusingqongileyo zefayile yombane.

Umthamo wesihluzi ugqitywe ikakhulu yi-inductance kwisekethe yokucoca.Ubuninzi bomthamo wekhoyili ye-inductance, ubukhulu bomthamo wesihluzo.