Uma kuziwa ekukhetheni uhlobo olulungile lwe-capacitor yohlelo lokusebenza lwe-elekthronikhi, ukukhetha kungase kube nesiyezi. Enye yezinhlobo ezivame kakhulu zama-capacitor asetshenziswa kumasekethe kagesi yi-electrolytic capacitor. Ngaphakathi kwalesi sigaba, kunezinhlobo ezimbili ezincane eziyinhloko: i-aluminium electrolytic capacitor kanye nama-polymer electrolytic capacitor. Ukuqonda umehluko phakathi kwalezi zinhlobo ezimbili zama-capacitor kubalulekile ekukhetheni i-capacitor efanele yohlelo lokusebenza oluthile.
Aluminium electrolytic capacitorsziwuhlobo lwendabuko futhi olusetshenziswa kabanzi lwama-electrolytic capacitor. Aziwa ngevelu yawo ephezulu ye-capacitance nekhono lokusingatha amazinga aphezulu kagesi. Lawa ma-capacitor enziwa kusetshenziswa iphepha elifakwe i-electrolyte njenge-dielectric ne-aluminium foil njengama-electrode. I-electrolyte ngokuvamile iwuketshezi noma ijeli, futhi iwukusebenzelana phakathi kwe-electrolyte ne-aluminium foil evumela lawa ma-capacitor ukuthi agcine futhi akhulule amandla kagesi.
Ama-polymer electrolytic capacitor, ngakolunye uhlangothi, awuhlobo olusha, oluthuthuke kakhulu lwe-electrolytic capacitor. Esikhundleni sokusebenzisa i-electrolyte ewuketshezi noma yejeli, ama-polymer capacitor asebenzisa i-polymer conductive eqinile njenge-electrolyte, okuholela ekuzinzeni okungcono nokunciphisa ukumelana kwangaphakathi. Ukusetshenziswa kobuchwepheshe be-solid-state kuma-polymer capacitor kungakhuphula ukwethembeka, kunwebe impilo yesevisi, futhi kunikeze ukusebenza okungcono kuma-high-frequency kanye nezinhlelo zokusebenza ezishisa kakhulu.
Omunye umehluko omkhulu phakathii-aluminium electrolytic capacitorsfuthi i-polymer electrolytic capacitor iyimpilo yabo yesevisi. Ama-Aluminium electrolytic capacitor ngokuvamile anempilo emfushane kunama-polymer capacitor futhi asengozini yokwehluleka ngenxa yezici ezifana nezinga lokushisa eliphezulu, ukucindezelwa kwamandla kagesi, kanye ne-ripple current. Ama-polymer capacitor, ngakolunye uhlangothi, anempilo yesevisi ende futhi aklanyelwe ukumelana nezimo zokusebenza ezinzima, okuwenza afanelekele ukusetshenziswa ezinhlelweni ezifunayo.
Omunye umehluko obalulekile yi-ESR (ukumelana nochungechunge olulinganayo) lwama-capacitor amabili. I-aluminium electrolytic capacitor ine-ESR ephezulu uma iqhathaniswa nama-polymer capacitor. Lokhu kusho ukuthi ama-polymer capacitor anokumelana okuphansi kwangaphakathi, okuholela ekusebenzeni okungcono ngokuphathwa kwamanje kwe-ripple, ukukhiqizwa kokushisa kanye nokuchithwa kwamandla.
Ngokuya ngosayizi nesisindo, ama-polymer capacitor ngokuvamile mancane futhi alula kunama-aluminium capacitor anamandla afanayo kanye nesilinganiso se-voltage. Lokhu kubenza bafaneleke kakhulu kumadivayisi kagesi ahlangene futhi angasindi, lapho isikhala nesisindo kuwukucatshangelwa okubalulekile.
Kafushane, ngenkathi ama-aluminium electrolytic capacitor bekuyinketho ekhethwayo iminyaka eminingi ngenxa yamanani awo aphezulu kanye nezilinganiso zamandla kagesi, ama-polymer electrolytic capacitor anikeza izinzuzo ezimbalwa ngokuphila isikhathi eside, ukusebenza, nosayizi. Ukukhetha phakathi kwezinhlobo ezimbili zama-capacitor kuncike ezidingweni ezithile zohlelo lokusebenza, njengezimo zokusebenza, izithiyo zesikhala, nezidingo zokusebenza.
Sekukonke, womabili ama-aluminium electrolytic capacitor nama-polymer electrolytic capacitor anezinzuzo zawo kanye nokubi. Ukuze ukhethe uhlobo lwe-capacitor olufaneleka kakhulu lwesicelo, kubalulekile ukucabangela ngokucophelela izidingo ezithile kanye nezimo zokusebenza zesekethe ye-elekthronikhi. Njengoba ubuchwepheshe buqhubeka buthuthuka, ama-polymer electrolytic capacitor aya ngokuya aduma ngenxa yokusebenza kwawo okuthuthukisiwe nokwethembeka, okuwenza abe enye indlela esebenzayo yama-capacitor e-aluminium electrolytic yendabuko ezinhlelweni eziningi zikagesi.
Isikhathi sokuthumela: Jan-02-2024