Kodi ESR imakhudza bwanji ma capacitors?

Mukamvetsetsa ma capacitor, imodzi mwazinthu zofunika kuziganizira ndi ESR (kukana kofananira). ESR ndi chibadwa cha ma capacitor onse ndipo imagwira ntchito yofunika kwambiri pakuzindikira momwe amagwirira ntchito. M'nkhaniyi, tiwona mgwirizano pakati pa ESR ndi capacitors, makamaka makamakaotsika ESR MLCCs(multilayer ceramic capacitors).

ESR ikhoza kufotokozedwa ngati kukana komwe kumachitika motsatizana ndi mphamvu ya capacitor chifukwa cha khalidwe losakhala bwino la zinthu za capacitor. Itha kuganiziridwa ngati kukana komwe kumachepetsa kuthamanga kwapano kudzera pa capacitor. ESR ndi khalidwe losafunikira chifukwa limapangitsa mphamvu kuti iwonongeke ngati kutentha, motero kuchepetsa mphamvu ya capacitor ndi kukhudza ntchito yake.

Ndiye, ESR imakhudza bwanji ma capacitors? Tiyeni tifufuze mwatsatanetsatane.

1. Kutaya mphamvu: Pamene panopa ikuyenda kudzera mu capacitor, mphamvu imatayika mwa mawonekedwe a kutentha chifukwa cha kukana koperekedwa ndi ESR. Kutaya mphamvu kumeneku kungayambitse kutentha, zomwe zingasokoneze ntchito yonse ndi moyo wautumiki wa capacitor. Chifukwa chake, kuchepetsa ESR ndikofunikira kuti muchepetse kutayika kwamagetsi ndikuwonetsetsa kuti capacitor ikugwira ntchito moyenera.

2. Voltage Ripple: M'mapulogalamu omwe ma capacitors amagwiritsidwa ntchito pakusefa ndi kusalaza, ESR imakhala yofunikira kwambiri. ESR imapanga ma ripples amagetsi kapena kusinthasintha pamene voteji kudutsa capacitor imasintha mofulumira. Ma ripples awa angayambitse kusakhazikika kwa dera komanso kusokoneza, zomwe zimakhudza mtundu wa chizindikirocho. Ma capacitor otsika a ESR adapangidwa makamaka kuti achepetse ma voliyumu awa ndikupereka zingwe zamagetsi zokhazikika.

3. Kusintha liwiro: Ma capacitor nthawi zambiri amagwiritsidwa ntchito pamabwalo apakompyuta okhudzana ndi kusintha kwachangu. Mkulu wa ESR ukhoza kuchepetsa kwambiri liwiro la kusintha kwa dera, kuchititsa kuchedwa ndi kuchepetsa kugwira ntchito bwino. Ma capacitor otsika a ESR, kumbali ina, amapereka chiwongolero chachangu ndi mitengo yotulutsa, kuwapangitsa kukhala abwino kwa mapulogalamu omwe amafunikira kusintha mwachangu.

4. Mayankho afupipafupi: ESR imathandizanso kwambiri kuyankha pafupipafupi kwa capacitor. Imayambitsa impedance yomwe imasintha pafupipafupi. Ma capacitor apamwamba a ESR amawonetsa kusokoneza kwakukulu pama frequency apamwamba, kumachepetsa magwiridwe antchito omwe amafunikira ma frequency angapo. Ma capacitor otsika a ESR amakhala ndi zoletsa zotsika pamafupipafupi ambiri ndipo amatsimikiziridwa kuti ndi othandiza kwambiri panthawiyi.

Kuthana ndi zovuta zomwe zimadza chifukwa cha kuchuluka kwa ESR,otsika ESR MLCCszakhala zotchuka kwambiri m’zaka zaposachedwapa. Ma MLCC awa amapangidwa pogwiritsa ntchito zida zapamwamba komanso njira zopangira kuti akwaniritse ma ESR otsika kwambiri poyerekeza ndi ma capacitor wamba. Kuyankha kwawo pafupipafupi, kugwiritsa ntchito mphamvu pang'ono komanso kukhazikika kokhazikika kumawapangitsa kukhala abwino pazogwiritsa ntchito zosiyanasiyana kuphatikiza magetsi, zosefera, kudula ndi kudutsa.

Mwachidule, ESR ndi gawo lofunikira lomwe limakhudza magwiridwe antchito a capacitor. Imazindikira kutha kwa mphamvu ya capacitor, kuthamanga kwamagetsi, kuthamanga kwakusintha, komanso kuyankha pafupipafupi. Ma ESR otsika a MLCC atuluka ngati njira yothetsera mavuto omwe amabwera chifukwa cha ESR yapamwamba, kupereka ntchito yabwino komanso yodalirika ya zipangizo zosiyanasiyana zamagetsi ndi mabwalo.