Xa uqonda i-capacitors, enye yeeparameters ezibalulekileyo ekufuneka ziqwalaselwe yi-ESR (i-requivalent series resistance).I-ESR luphawu lwendalo lwazo zonke ii-capacitors kwaye idlala indima ebalulekileyo ekumiseleni ukusebenza kwabo ngokubanzi.Kule nqaku, siza kuhlolisisa ubudlelwane phakathi kwe-ESR kunye ne-capacitors, sigxininise ngokukodwaezisezantsi-ESR MLCCs(i-multilayer ceramic capacitors).
I-ESR inokuchazwa njengokuchasana okwenzeka kwichungechunge kunye ne-capacitance ye-capacitor ngenxa yokuziphatha okungahambi kakuhle kwezinto ze-capacitor.Inokucingwa njengokuchasana okunciphisa ukuhamba kwangoku nge-capacitor.I-ESR iyimpawu engathandekiyo kuba ibangela ukuba amandla atshatyalaliswe njengobushushu, ngaloo ndlela ukunciphisa ukusebenza kakuhle kwe-capacitor kunye nokuchaphazela ukusebenza kwayo.
Ngoko, yintoni umphumo we-ESR kwi-capacitors?Makhe simbe kwiinkcukacha.
1. Ukutshatyalaliswa kwamandla: Xa ikhoyo ngoku ihamba nge-capacitor, amandla alahlekile ngendlela yokushisa ngenxa yokuchasana okunikezelwa yi-ESR.Oku kutshatyalaliswa kwamandla kunokubangela ukunyuka kweqondo lokushisa, elinokuthi lichaphazele kakubi ukusebenza kunye nobomi benkonzo ye-capacitor.Ke ngoko, ukunciphisa i-ESR kubalulekile ukunciphisa ilahleko yamandla kunye nokuqinisekisa ukusebenza ngokufanelekileyo kwe-capacitor.
2. I-Voltage Ripple: Kwizicelo apho i-capacitors isetyenziselwa ukucoca kunye neenjongo zokucoca, i-ESR iba yipharamitha ebalulekileyo.I-ESR ivelisa i-voltage ripples okanye ukuguquguquka xa i-voltage kwi-capacitor itshintsha ngokukhawuleza.Ezi ngqungquthela zingabangela ukungazinzi kwesekethe kunye nokuphazamiseka, okuchaphazela umgangatho wesignali yokuphuma.I-ESR capacitors ephantsi yenzelwe ngokukodwa ukunciphisa ezi zixhobo zombane kunye nokubonelela ngemigca yamandla ezinzileyo.
3. Ukutshintsha isantya: Ii-Capacitors zihlala zisetyenziswa kwiisekethe ze-elektroniki ezibandakanya ukusebenza kokutshintsha ngokukhawuleza.I-ESR ephezulu inokucothisa kakhulu isantya sokutshintsha kwesekethe, ibangele ukulibaziseka kunye nokunciphisa ukusebenza kakuhle.I-ESR capacitors ephantsi, ngakolunye uhlangothi, inikezela ngentlawulo ekhawulezayo kunye namazinga okukhutshwa, okwenza kube lula kwizicelo ezifuna ukutshintshwa ngokukhawuleza.
4. Ukuphendula rhoqo: I-ESR nayo inefuthe elibalulekileyo kwi-frequency response ye-capacitor.Yazisa i-impedance etshintsha rhoqo.I-ESR capacitors ephezulu ibonakalisa i-impedance ephezulu kwi-frequencies ephezulu, ukunciphisa ukusebenza kwabo kwizicelo ezifuna uluhlu olubanzi lwamafrikhwensi.Ii-ESR capacitors ezisezantsi zine-impedance ephantsi kwi-spectrum ebanzi kwaye zibonakaliswe ukuba zisebenza ngakumbi kule meko.
Ukujongana nemingeni ebangelwa yi-ESR ephezulu,ezisezantsi-ESR MLCCsziye zanda kakhulu kwiminyaka yakutshanje.Ezi MLCC zenziwa kusetyenziswa izinto eziphambili kunye nobuchule bokwenza ukuphumeza amaxabiso aphantsi e-ESR xa kuthelekiswa neecapacitors eziqhelekileyo.Ukuphuculwa kokuphendula kwabo rhoqo, ukusetyenziswa kwamandla aphantsi kunye nozinzo olongeziweyo kubenza balungele usetyenziso olwahlukeneyo olubandakanya izixhobo zombane, iisekethe zokucoca, ukudityaniswa kunye nokudlula.
Isishwankathelo, i-ESR iyipharamitha ephambili echaphazela ukusebenza kwe-capacitor.Imisela ukuchithwa kwamandla e-capacitor, i-voltage ripple, isantya sokutshintsha, kunye nokuphendula rhoqo.Ii-ESR MLCC eziphantsi ziye zavela njengesisombululo sokunciphisa imingeni ehambelana ne-ESR ephezulu, ukubonelela ngokusebenza ngokufanelekileyo nokuthembekileyo kwezixhobo ezahlukeneyo zombane kunye neesekethe.
Ixesha lokuposa: Sep-27-2023