Xa kufikwa ekukhetheni uhlobo olufanelekileyo lwe-capacitor kwisicelo se-elektroniki, ukhetho ludla ngokuba yinto edidayo. Enye yezona ntlobo zixhaphakileyo zee-capacitors ezisetyenziswa kwiisekethe ze-elektroniki yi-electrolytic capacitor. Kolu didi, kukho iintlobo ezimbini eziphambili: ii-aluminium electrolytic capacitors kunye nee-polymer electrolytic capacitors. Ukuqonda umahluko phakathi kwezi ntlobo zimbini zee-capacitors kubalulekile ekukhetheni i-capacitor efanelekileyo kwisicelo esithile.
Ii-capacitor ze-aluminium electrolyticzezona ntlobo ze-electrolytic capacitors zemveli nezisetyenziswa kakhulu. Zaziwa ngexabiso lazo eliphezulu le-capacitance kunye nokukwazi kwazo ukuphatha amanqanaba aphezulu e-voltage. Ezi capacitors zenziwe ngephepha elifakwe i-electrolyte njenge-dielectric kunye ne-aluminium foil njengee-electrodes. I-electrolyte idla ngokuba yinto engamanzi okanye yejeli, kwaye kukunxibelelana phakathi kwe-electrolyte kunye ne-aluminium foil okuvumela ezi capacitors ukuba zigcine kwaye zikhuphe amandla ombane.
Kwelinye icala, ii-capacitors ze-polymer electrolytic luhlobo olutsha noluphucukileyo lwe-electrolytic capacitor. Endaweni yokusebenzisa i-electrolyte engamanzi okanye ye-gel, ii-polymer capacitors zisebenzisa i-polymer eqinileyo njenge-electrolyte, nto leyo ebangela uzinzo olungcono kunye nokumelana okuphantsi kwangaphakathi. Ukusetyenziswa kwetekhnoloji ye-solid-state kwii-polymer capacitors kunokunyusa ukuthembeka, kwandise ubomi benkonzo, kwaye kubonelele ngokusebenza okungcono kwizicelo ezisebenza rhoqo kunye nobushushu obuphezulu.
Omnye weyona mahluko aphambili phakathiii-capacitors ze-aluminium electrolytickwaye ii-capacitors ze-polymer electrolytic ziphila ubomi obufutshane kunee-polymer capacitors kwaye zisengozini enkulu yokusilela ngenxa yezizathu ezifana nobushushu obuphezulu, uxinzelelo lwe-voltage, kunye nomsinga we-ripple. Kwelinye icala, ii-capacitors ze-polymer ziphila ubomi obude kwaye zenzelwe ukumelana neemeko zokusebenza ezinzima, nto leyo ezenza zifaneleke ukusetyenziswa kwizicelo ezinzima.
Omnye umahluko obalulekileyo yi-ESR (ukumelana nochungechunge olulinganayo) yee-capacitors ezimbini. Ii-capacitors ze-aluminium electrolytic zine-ESR ephezulu xa kuthelekiswa nee-capacitors ze-polymer. Oku kuthetha ukuba ii-capacitors ze-polymer zinokuxhathisa okuphantsi kwangaphakathi, nto leyo ebangela ukusebenza ngcono ngokubhekiselele ekuphathweni kombane we-ripple, ukuvelisa ubushushu kunye nokuchithwa kwamandla.
Ngokuphathelele ubungakanani nobunzima, ii-capacitor ze-polymer zihlala zincinci kwaye zikhaphukhaphu kunee-capacitor ze-aluminium ezine-capacitance efanayo kunye ne-voltage rating. Oku kuzenza zifaneleke ngakumbi kwizixhobo ze-elektroniki ezincinci nezikhaphukhaphu, apho indawo kunye nobunzima zizinto ezibalulekileyo ekufuneka ziqwalaselwe.
Ngamafutshane, nangona ii-capacitors ze-aluminium electrolytic bezisoloko zikhethwa kakhulu kangangeminyaka emininzi ngenxa yexabiso lazo eliphezulu le-capacitance kunye nokulinganiswa kwe-voltage, ii-capacitors ze-polymer electrolytic zibonelela ngeenzuzo ezininzi ngokubhekiselele kwixesha elide, ukusebenza, kunye nobukhulu. Ukukhetha phakathi kweentlobo ezimbini zee-capacitors kuxhomekeke kwiimfuno ezithile zesicelo, ezinje ngeemeko zokusebenza, imida yendawo, kunye neemfuno zokusebenza.
Lilonke, zombini ii-capacitors ze-aluminium electrolytic kunye nee-polymer electrolytic capacitors zinezibonelelo kunye neengxaki zazo. Ukuze ukhethe uhlobo lwe-capacitor olufanelekileyo kakhulu kwisicelo, kubalulekile ukuqwalasela ngononophelo iimfuno ezithile kunye neemeko zokusebenza zesekethe ye-elektroniki. Njengoko iteknoloji iqhubeka ihambela phambili, ii-polymer electrolytic capacitors ziya zithandwa kakhulu ngenxa yokusebenza kwazo okuphuculweyo kunye nokuthembeka kwazo, nto leyo eyenza zibe yindlela efanelekileyo kunee-capacitors ze-aluminium electrolytic zemveli kwizicelo ezininzi ze-elektroniki.
Ixesha leposi: Jan-02-2024