Ama-capacitor adlala indima ebalulekile ekuhlinzekeni kwamandla, ikakhulukazi asetshenziselwa ukushelela i-voltage ephumayo nokuhlunga umsindo kagesi. Ngokugcina amandla kagesi okwesikhashana nangokuwakhulula ngesikhathi sokukhuphuka kwesidingo, ama-capacitor asiza ukugcina amandla aphumayo azinzile futhi ahlanzekile. Lo msebenzi ubalulekile ekunciphiseni umthelela wokushintshashintsha kwe-voltage nomsindo, okungaphazamisa ukusebenza kanye nobude besikhathi samadivayisi kagesi.
Ngaphezu kwalokho, ama-capacitor asemandleni kagesi asiza ukuphatha izinguquko ezisheshayo kumandla kagesi. Uma idivayisi idonsa amandla engeziwe, i-capacitor inikeza amandla kagesi adingekayo ngaphandle kokwehla okukhulu kwe-voltage, okuqinisekisa ukuthi ukunikezwa kwamandla kuhlala kufana. Leli khono libaluleke kakhulu ezinhlelweni lapho i-voltage eqinile ibalulekile, njengasemishinini yomsindo ebucayi noma kumasekethe edijithali anembile, okuvikela ekulimaleni okungenzeka ngenxa yokungahambi kahle kwamandla.
Ngaphezu kwalokho, ekushintsheni amandla kagesi, ama-capacitor anegalelo elikhulu ekuphathweni kwamaza okushintsha futhi asiza enqubweni yokuguqulwa kwamandla. Indima yawo lapha ikabili: okokuqala, anciphisa amandla alahlekile ngesikhathi sokushintsha kokushintsha ngokugcina ishaja okwesikhashana, kanti okwesibili, enza kube lula ukuphuma kwamandla kagesi ukuvimbela ukuphazamiseka okuphazamisayo esiketheni. Lokhu kusebenza okubili akugcini nje ngokuthuthukisa ukusebenza kahle kwamandla kagesi kodwa futhi kuthuthukisa ukusebenza kwedivayisi enika amandla, ukuqinisekisa ukuthi amandla asetshenziswa kahle nangendlela efanele.
Ama-capacitor e-aluminium electrolytic angasebenzi angaba nemiphumela emibi kakhulu kumasekethe kagesi. Ochwepheshe abaningi babone izimpawu zokuthi indaba iyabonakala - ukukhukhumala, ukuvuza kwamakhemikhali, ngisho nezihloko ezipheshukile. Uma ehluleka, amasekethe aqukethe wona awasasebenzi njengoba kuklanyelwe - ngokuvamile athinta ukunikezwa kwamandla. Isibonelo, i-capacitor ehlulekayo ingathinta izinga lokukhipha le-DC lokunikezwa kwamandla kagesi e-DC ngoba ayikwazi ukuhlunga ngempumelelo i-voltage elungisiwe eshayayo njengoba kuhlosiwe. Lokhu kuholela ku-voltage ye-DC ephansi futhi kubangele ukuziphatha okuguquguqukayo okuhambisanayo ngenxa ye-ripple engafuneki - ngokungafani ne-voltage ye-DC ehlanzekile elindelekile emthwalweni. Isibonelo, ngezansi kukhombisa ukunikezwa kwamandla okuqondile okunempilo. Njengoba ubona, okukhiphayo (uMgqa Oluhlaza) kuyi-voltage ye-DC ehlanzekile kakhulu ene-ripple ephansi kakhulu. I-Ripple yingxenye ye-AC engafuneki i-capacitor ehlose ukuyihlunga noma (ishelele). Emaphethelweni akhuphukayo e-waveform elungisiwe (ngombala onsomi), i-capacitor iyashaja. Emaphethelweni awelayo, amandla agcinwe ku-capacitor anikeza i-voltage eyanele emthwalweni ukuze ayibophe kuze kube semaphethelweni akhuphukayo alandelayo.
Isibonelo esilandelayo sibonisa ukunikezwa kwamandla okufanayo nge-capacitor yesihlungi sokukhipha esingasebenzi. Ngenxa yokuthi i-ESR (Equivalent Series Resistance) ye-capacitor inyukile, isekethe ayisasebenzi njengoba iklanyelwe. Lokhu kubangela izinto ezimbili ukuthi zenzeke. Kunjengokungathi kufakwe i-resistor eyengeziwe ochungechungeni ne-capacitor. Futhi, indawo engaphezulu yamapuleti e-capacitor inciphile ngempumelelo - kunciphisa amandla. Ngakho-ke esikhundleni sokuhlunga i-AC ripple engafuneki, leyo ripple ivela kuzo zombili izingxenye ezisanda kwethulwa zokumelana ngaphakathi kwe-capacitor ebonakalayo kanye namandla ancishisiwe ngempumelelo. Lokhu kuphumela ku-voltage yokukhipha engahlanzekile (Umugqa Oluhlaza) enezinga eliphansi kuneleveli ye-DC elidingekayo kumthwalo. Ngakho-ke lapho i-voltage elungisiwe (ngombala onsomi) ikhuphuka, i-capacitor ayikwazi ukugcina lawo mandla anele - kangangokuthi onqenqemeni oluwelayo, i-voltage yokukhipha (ngombala oluhlaza) ivele yehle iye ezingeni eliphansi.
Ukushintsha i-capacitor kuvame ukuxazulula le nkinga. Isekethe ingaphinde isebenze njengoba iklanyelwe - ukuhlunga i-voltage engafuneki ye-ripple bese iletha i-voltage ye-DC ehlanzekile emthwalweni. Kodwa kungani la ma-cap ehluleka? Yini engenziwa ukuvimbela lokhu? Ukuvimbela kanjani lokhu ukuthi kuphinde kwenzeke? Okokuqala, ama-capacitor e-electrolytic anempilo elinganiselwe. Ama-capacitor amaningi e-aluminium electrolytic aqinisekisiwe ukuthi azohlala amahora ayi-1000 - 10,000 ekushiseni kwawo okulinganiselwe, kuye ngokuthi i-capacitance kanye ne-voltage ingakanani. Kuma-power supply asebenza amahora angama-24/7 (njengalawo asezintweni zikagesi ezihlinzeka ngamandla enkinobheni ethi "vula"), lokhu kusho ukuthi izinsuku ezingama-42 kuya eminyakeni eyi-1 1/2. Impilo iyonke incike emthwalweni ugesi ongaphansi kwawo, izinga lokushisa elizungezile i-capacitor (lingahlala amahora amade kakhulu njengoba izinga lokushisa lokusebenza lehla), kanye nomjikelezo womsebenzi wokusebenzisa (ukuthi noma yimaphi amahora/usuku ugesi unikwa amandla kanjani). Izinga lokushisa eliphezulu lokusebenza lingenye yezizathu ezenza ama-capacitor e-electrolytic abe ngenye yezingxenye ezivame ukwehluleka kakhulu kuma-electronics.
isihloko esivela ku-:https://qr.ae/pCWki4
Isikhathi sokuthunyelwe: Disemba-26-2025