Iindaba

Isihluzo sokwenziwa, ekwabizwa ngokuba yi-LC filter, yi-filter circuit ehlanganiswe ne-inductance, i-capacitance kunye nokumelana, enokucoca i-harmonics enye okanye ngaphezulu. Eyona nto ixhaphakileyo kwaye kulula ukuyisebenzisa i-passive filter structure kukudibanisa i-inductance kunye ne-capacitance kwi-series, enokuthi yenze i-impedance bypass ephantsi ye-harmonics eziphambili (3, 5 kunye ne-7); Isihluzi esilungelelanisiweyo esinye, isihluzo esiphindwe kabini kunye nesihluzo sokupasa okuphezulu zonke zizihluzo ezingenzi nto.
inzuzo
Isihluzi sePassive sineenzuzo zesakhiwo esilula, ixabiso eliphantsi, ukuthembeka okuphezulu kunye neendleko zokusebenza eziphantsi. Isasetyenziswa ngokubanzi njengendlela yokulawula i-harmonic.
ukuhlelwa
Iimpawu zesihluzo se-LC ziyakuhlangabezana neemfuno ezichaziweyo zesalathiso sobugcisa. Ezi mfuno zobugcisa zihlala zisebenza ukuthomalalisa kwi-domain frequency, okanye shift shift, okanye zombini; Ngamanye amaxesha, iimfuno zokuphendula ngexesha kwisizinda sexesha ziyacetywa. Izihluzi ezisetyenziswayo zinokwahlulwa zibe ziindidi ezimbini: izihluzo ezilungisiweyo kunye nezihluzo zokupasa okuphezulu. Kwangaxeshanye, ngokweendlela ezahlukeneyo zokuyila, inokwahlulwa ibe yiparameter yomfanekiso kunye nepharamitha yokucoca.
Ukucoca isihluzo
Icebo lokucoca ulwelo liquka icebo lokucoca ulwelo kunye nesihluzo sokulungisa kabini, esinokuthi sihluze ngaphandle enye (ulungiso olunye) okanye ezimbini (ulungiso oluphindiweyo) iiharmonics. Ubuninzi bee-harmonics bubizwa ngokuba yi-resonant frequency yesihluzo sokucoca.
Isihluzi sokupasa okuphezulu
Isihluzi sokupasa okuphezulu, ekwabizwa ngokuba sisihluzo sokunciphisa i-amplitude, ikakhulu sibandakanya isihluzo sokupasa okuphezulu, i-oda lesibini lokupasa okuphezulu, isihluzo sokupasa okuphezulu kunye nohlobo lwe-C, ezisetyenziselwa ukuthomalalisa ii-harmonics ezisezantsi kunomthamo othile, obizwa ngokuba yi-cut-off frequency of high pass filter.
Isihluzi separameter yomfanekiso
Isihluzi siyilwe kwaye siphunyezwe ngokusekwe kwithiyori yeeparamitha zomfanekiso. Eli cebo lokucoca liqulunqwe ngamacandelo asisiseko (okanye amacandelo esiqingatha) anqunyulwe ngokomgaqo womfanekiso olinganayo wokuphazamiseka kuqhagamshelwano. Icandelo elisisiseko linokwahlulwa libe ludidi olusisigxina lwe-K kunye nohlobo oluphuma kwi-m ngokwesakhiwo sesekethe. Ukuthatha i-LC yokucoca i-low-pass filter njengomzekelo, i-stopband attenuation ye-fixed K-uhlobo lwe-low-pass yecandelo elisisiseko landisa i-monotonically ngokunyuka kwamaxesha amaninzi; I-m-derived low-pass basic node ine-attenuation peak kwi-frequency ethile kwi-stopband, kwaye indawo ye-attenuation peak ilawulwa yi-m value kwi-node evela ku-m. Kwisihluzo esisezantsi esinePass-Pass eyiCascaded Low-Pass esisiseko, i-inherent attenuation ilingana nesimbuku sokuthotywa ngokwendalo kwecandelo ngalinye elisisiseko. Xa i-impedance yangaphakathi kunye ne-impedance yomthwalo wonikezelo lwamandla ephelisiwe kuzo zombini iziphelo zesihluzi zilingana nokuphazamiseka komfanekiso kuzo zombini iziphelo, ukuthotywa kokusebenza kunye nokutshintshwa kwesigaba sesihluzo zilingana nokuthotywa kwazo kunye nokutshintsha kwesigaba ngokulandelelana. (a) Isihluzo esibonisiweyo senziwe licandelo elisisigxina lika-K kunye namacandelo amabini athathwe kwi-cascade. U-Z π kunye no-Z π m luthintelo lomfanekiso. (b) Ngaba luphawu lokuthomalalisa kwayo. Izikhundla zeencopho ezimbini zokuthomalalisa /f ∞ 1 kunye no-f ∞ 2 kwindawo yokumisa zimiselwa ngokulandelelanayo ngamaxabiso e-m ezimbini ezithathwe iinodi.
Ngokufanayo, ukupasa okuphezulu, i-band-pass kunye ne-band stop filters nazo zinokuqulunqwa ngamacandelo asisiseko ahambelanayo.
I-impedance yomfanekiso wesihluzi ayinakulingana nokumelana okucocekileyo kwangaphakathi konikezelo lwamandla kunye nokuphazamiseka komthwalo kuyo yonke ibhendi yefrikhwensi (umahluko mkhulu kwi-stopband), kwaye ukuthomalalisa okungokwemvelo kunye nokunciphisa ukusebenza kwahluke kakhulu kwi-passband. Ukuze kuqinisekiswe ukufezekiswa kwezalathi zobugcisa, kudla ngokuba yimfuneko ukugcina umda wokuthomalalisa okwaneleyo kunye nokwandisa ububanzi bokugqitha kuyilo.
Isihluzi separameter esebenzayo
Eli cebo lokucoca alenziwanga ngamacandelo asisiseko, kodwa lisebenzisa imisebenzi yothungelwano enokuthi iqondwe ngokwasemzimbeni ngu-R, l, C kunye nezinto ezihambelanayo zokunxibelelana ukuqikelela ngokuchanekileyo ubuchwephesha besihluzo, kwaye emva koko iqonde isekethe yokucoca ehambelanayo ngemisebenzi yenethiwekhi efunyenweyo. Ngokweendlela ezahlukeneyo zokuqikelela, imisebenzi eyahlukeneyo yenethiwekhi inokufumaneka, kwaye iintlobo ezahlukeneyo zokucoca zinokufezekiswa. (a) Luphawu lwesihluzo somhlaba osezantsi ophunyezwa ngoqikelelo lwe-amplitude ecaba (uqikelelo lwebertowitz); I-passband yeyona nto icaba kufutshane ne-zero frequency, kwaye i-attenuation iyanda xa isondela kwi-stopband. (c) Ngaba uphawu lwesihluzo esikwipasi esezantsi siphunyezwa ngokuqikelelwa kweripple elinganayo (uqikelelo lweChebyshev); I-attenuation kwi-passband iguquguquka phakathi kwe-zero kunye nomda ophezulu, kwaye inyuka i-monotonically kwi-stopband. (e) Isebenzisa uqikelelo lomsebenzi we-elliptic ukuqonda iimpawu zesihluzo sokudlula okuphantsi, kwaye ucutha lubonisa utshintsho olwenziwayo lwamandla ombane kuzo zombini ibhendi yokupasa kunye nebhendi yokumisa. (g) Ngaba uphawu lwesihluzo sendlela esezantsi siphunyezwa; I-attenuation kwi-passband iguquguquka kwi-amplitude elinganayo, kwaye i-attenuation kwi-stopband iyaguquguquka ngokunyuka nokuwa okufunwa yisalathisi. (b) , (d), (f) kunye no (H) ziisekethe ezihambelanayo zezi zihluzo zipasile ngokulandelelanayo.
Ukupasa okuphezulu, i-band-pass kunye nezihluzo zokumisa ibhendi zihlala ziphuma kwizihluzi zokupasa okuphantsi ngendlela yokuguqulwa kwamaza.
Isihluzi separameter esebenzayo yenzelwe indlela yokudibanisa ngokuchanekileyo ngokweemfuno zezalathisi zobugcisa, kwaye inokufumana isekethe yokucoca ngokusebenza okugqwesileyo kunye noqoqosho,
Isihluzi seLC kulula ukwenza, siphantsi ngexabiso, sibanzi kwibhendi yefrikhwensi, kwaye sisetyenziswa ngokubanzi kunxibelelwano, izixhobo kunye neminye imimandla; Ngaxeshanye, isoloko isetyenziswa njenge prototype yoyilo lwezinye iintlobo ezininzi zokucoca.

Sisenokwenza ngokwezifiso amalungu e-rf passive ngokweemfuno zakho. Ungangenisa iphepha lokulungiselela ukubonelela ngeenkcukacha ozifunayo.
https://www.keenlion.com/customization/

Emali:
sales@keenlion.com
tom@keenlion.com