Kev xaiv ntawm lub capacitor rau xov tooj cua thiab lwm yam khoom siv hluav taws xob yuav tsum yog lawm. Kev ntseeg siab txoj haujlwm ntawm tus qauv thiab nws txoj kev nyab xeeb yog nyob ntawm qhov no. Ua ntej txhim kho lub hauv paus rau hauv xov tooj cua ntawm Circuit Court, kawm cov ntawv nyeem tsim nyog.
Cov lus pom zoo ntawm kev xaiv rau tus neeg tuaj yeem
Xov tooj cua amateurs siv txhuas, tantalum, ceramic capacitors thiab lwm yam. Nws txoj kev ntseeg tau thaum lub sijhawm ua haujlwm yog nyob ntawm qhov xaiv raug ntawm lub capacitor, vim tias nws yuav tsum tau siv rau hauv cov qauv kev ua haujlwm uas tsis pub dhau qhov teev tseg. Txhawm rau ua qhov no, nws yog qhov yuav tsum tau txiav txim siab qhov tseem ceeb ntawm cov nominal tsis dhau thiab lawv cov kev hloov pauv thaum lub sijhawm ua haujlwm, kev hloov mus rau lwm hom thiab hluav taws xob thauj khoom, tsim qauv, ntsuas ntawm kev ntseeg tau thiab ua tau ntev, kev xaiv teeb tsa, qhov ntev thiab qhov hnyav.
Kev xyaum qhia tau hais tias qhov ntsuas hluav taws xob uas tau tso cai hauv nws lub cev yuav tsum tsis pub tsawg dua ntawm kab hluav taws xob. Koj tuaj yeem xaiv ntau dua 20-30%. Lub peev xwm tuaj yeem siv tsis pub dhau + -10%, tab sis nws zoo dua rau coj nws tsis tsawg tshaj li ntawm qhov hluav taws xob ntawm qhov hluav taws xob.
Yog hais tias lub ntsuas hluav taws xob yuav tsum nyob hauv cov hluav taws xob sib txuas, dhau ntawm RF (qhov muaj ntau zaus), tom qab ntawd nws yog qhov zoo dua yog siv cov ceramic. Yog tias lawv yuav tsum tau nruab rau hauv qhov chaw teeb tsa zaus, tom qab ntawd nws zoo dua rau coj lawv nrog TKE me me (qhov ntsuas kub ntawm lub zog ua kom tsis muaj zog) kom tsis txhob muaj ntau zaus xau. Hauv txhua qhov teeb meem, lub zog (capacitors) yuav tsum tau siv rau ntawm cov khoom thauj qis thiab lub teeb ua haujlwm me me (piv rau cov siab tshaj plaws tau tso cai).
Cov lus qhia ntxiv ntawm kev xaiv capacitor
Kev teeb tsa thiab ua kom nrawm yuav tsum tau muab cov khoom siv uas xav tau, kev sib txuas hluav taws xob zoo thiab qhov tsis muaj qhov tshwm sim rov qab los. Lawv cov khoom siv (rau ua kom ceev) yuav tsum tsis muaj kev puas tsuaj rau lub cev thiab cov txheej txheej tiv thaiv, nrog rau cov lus tsis zoo uas ua rau muaj qhov kub tsis zoo. Nws yeej tsis tsim nyog los siv lub zog ntawm cov keeb kwm dub (piv txwv li, cov khoom siv hluav taws xob, ua los ntawm cov khoom tsis zoo, tuaj yeem tawg). Nws yog ib qho tsim nyog yuav tsum tau them sai sai rau qhov yooj yim ntawm kev teeb tsa thiab lub xub ntiag ntawm kev tiv thaiv ntawm cov zis tawm ntawm cov ntaub ntawv kaw.
Xov tooj cua amateurs xaiv cov capacitors raws li lawv lub peev xwm thiab kev khiav hauj lwm hluav taws xob. Tab sis muaj lwm yam ntxwv coj los saib kom paub. Capacitors tseem tsis tau muaj cov kev txiav txim siab zoo, yog li ntawd lawv muaj cov khoom xws li ESR (Kev Ua Tau Zoo Tshaj Tawm Series) - sib npaug series tsis kam thiab ESI (Kev Ua Tau Zoo ntawm Kev Nqes Tes) - sib npaug series inductance. Lawv lub peev xwm tau cuam tshuam los ntawm kub, voltage, tshuab kev ntxhov siab. Nrog kev xaiv tsis raug ntawm lub zog hloov pauv, nce siv tam sim no thiab nce qib suab nrov, kev ua haujlwm tsis ruaj khov ntawm tag nrho cov qauv yuav tshwm sim.
