Lokacin fahimtar capacitors, ɗayan mahimman sigogin da za a yi la'akari shine ESR (daidaitaccen juriya). ESR sifa ce ta asali ta duk masu iya aiki kuma tana taka muhimmiyar rawa wajen tantance aikinsu gaba ɗaya. A cikin wannan labarin, za mu bincika dangantaka tsakanin ESR da capacitors, mayar da hankali musamman a kanlow-ESR MLCCs(multilayer yumbu capacitors).
Ana iya bayyana ESR a matsayin juriya da ke faruwa a jere tare da ƙarfin ƙarfin capacitor saboda halayen da ba daidai ba na abubuwan capacitor. Ana iya la'akari da shi azaman juriya wanda ke iyakance magudanar ruwa ta hanyar capacitor. ESR sifa ce da ba'a so saboda yana haifar da ɓarkewar makamashi azaman zafi, don haka rage ƙarfin ƙarfin ƙarfin aiki kuma yana shafar aikin sa.
Don haka, menene tasirin ESR akan capacitors? Bari mu tono cikin cikakkun bayanai.
1. Rashin wutar lantarki: Lokacin da halin yanzu ke gudana ta hanyar capacitor, makamashi yana ɓacewa a cikin nau'i na zafi saboda juriya da ESR ke bayarwa. Wannan rushewar wutar lantarki na iya haifar da haɓakar zafin jiki, wanda zai iya yin illa ga aikin gabaɗaya da rayuwar sabis na capacitor. Don haka, rage girman ESR yana da mahimmanci don rage asarar wutar lantarki da tabbatar da ingantaccen aiki na capacitor.
2. Voltage Ripple: A cikin aikace-aikacen da ake amfani da capacitors don tacewa da dalilai masu laushi, ESR ya zama ma'auni mai mahimmanci. ESR yana haifar da ripples ko sauye-sauye lokacin da ƙarfin lantarki a cikin capacitor ya canza da sauri. Wadannan ripples na iya haifar da rashin kwanciyar hankali da karkatarwa, suna shafar ingancin siginar fitarwa. Low ESR capacitors an ƙera su musamman don rage girman waɗannan ripples na ƙarfin lantarki da samar da tsayayyen layukan wuta.
3. Saurin sauyawa: Ana amfani da capacitors sau da yawa a cikin da'irori na lantarki da suka shafi ayyukan sauyawa da sauri. Babban ESR na iya rage saurin sauyawar da'ira, haifar da jinkiri da rage ingancin aiki. Ƙananan ESR capacitors, a gefe guda, suna ba da caji da sauri da ƙimar fitarwa, yana sa su dace don aikace-aikacen da ke buƙatar sauyawa da sauri.
4. Amsar maimaitawa: ESR kuma yana da tasiri mai mahimmanci akan yawan amsawar capacitor. Yana gabatar da impedance wanda ke canzawa tare da mita. Maɗaukakin masu ƙarfin ESR suna nuna rashin ƙarfi a mitoci mafi girma, suna iyakance ayyukansu a aikace-aikacen da ke buƙatar kewayon mitar mai faɗi. Ƙananan ma'auni na ESR suna da ƙananan impedance akan nau'i mai yawa kuma an tabbatar da cewa sun fi tasiri a wannan yanayin.
Don magance matsalolin da ke haifar da babban ESR,low-ESR MLCCssun zama suna karuwa a cikin 'yan shekarun nan. Ana kera waɗannan MLCCs ta amfani da kayan haɓakawa da dabarun masana'antu don cimma ƙarancin ƙimar ESR mai mahimmanci idan aka kwatanta da masu ƙarfi na al'ada. Ingantacciyar amsawarsu ta mitar, ƙarancin amfani da wutar lantarki da ingantaccen kwanciyar hankali ya sa su dace don aikace-aikace iri-iri ciki har da samar da wutar lantarki, da'irori masu tacewa, yankewa da kewaye.
A taƙaice, ESR shine maɓalli mai mahimmanci wanda ke shafar aikin capacitor. Yana ƙayyadad da ɓatar da wutar lantarki na capacitor, ƙarfin lantarki, saurin sauyawa, da amsa mitar. Ƙananan ESR MLCCs sun fito a matsayin mafita don rage ƙalubalen da ke da alaƙa da babban ESR, samar da ingantaccen aiki da ingantaccen aiki na na'urorin lantarki da da'irori iri-iri.
Lokacin aikawa: Satumba-27-2023