Sidee capacitor a wareegi jiray AC ah?

Haddii sahayda ay xoog u AC xiran resistor ah, hadda iyo danab ku Bannaanka mar kasta jaantuska waqtiga waa saami la mid kasta oo kale. Taas macnaheedu waxa weeye in gooladaha ee hadda iyo danab gaari doonaa qiyamka "peak" isku mar. Xaaladdan oo kale, waxaannu nidhaahnaa, hadda iyo danab ku jiraan xaalad.

War haatan aynu ka fiirso sida ay u dhaqmaan doonaa AC circuit capacitor ah.

Haddii il danab variable ku xiran capacitor ah, qiimaha ugu sareeya ee danab waxaa guud ahaan noqon doontaa saami qiimaha ugu badan ee hadda la barwaaqaysan ee Bannaanka. Si kastaba ha ahaatee, la ruxruxo ugu sarreysa danab la ruxruxo Culumida ma loo horumariyo doonaa waqti isku mid ah sida hadda ugu badan.

Tusaalahaan, qiimaha degdeg ah ee hadda ku gaadho qiimaha ugu badnaan muddo rubuc (90 el.grad.) Ka hor dhigi doonaa ciriiriga. Xaaladdan oo kale, waxaannu nidhaahnaa "hadda ku keenaysaa danab by 90◦».

Si ka duwan xaaladda circuit a postoyanngo qiimaha hadda V / I ma aha joogto ah. Si kastaba ha ahaatee, ratio ee max V / aan qiimaha max waa mid aad u faa'iido badan ee korontada ee loo yaqaan impedance capacitive (Xc) ee qayb ka ah. Tan iyo qiimaha this uu wali muujinayaa ratio ee danab inay hadda, ie, in dareenka jirka ah unug iska caabin cabbiraadda waa ohms ay. capacitor Xc Qiimaha waxay ku xiran tahay capacitance ka (C) iyo inta jeer AC ah (f).

Tan iyo xiriir si capacitor ee AC waxaa laga codsadaa RMS danab, sida ku dhacaa Bannaanka talantaalli ah ee hadda, oo ku eg tahay capacitor ah. xaddidaadda Tan waxa u sabab reactance ah ee capacitor ah.

Sidaa darteed, qiimaha hadda ka jirta circuit ay ku jiraan ma jiro waxyaalo kale marka laga reebo capacitor ah waxaa lagu go'aamiyaa Ohm ee Law version kale

Waxaan _RMS = U _RMS / X _C

Xaggee U _RMS - xidid macnaheedu square (RMS) danab. Fiiro gaar ah X oo la _bedelay qiimaha R version of Law Ohm ee DC.

Hadda waxaan aragnaa in capacitor ku soo wareegi jiray AC ma u dhaqmo sida resistor go'an, oo sidaas daraaddeed dheeraad ah oo ku adag xaaladdu tahay. In si loo fahmo geedi socodka ka dhacda circuit noocan oo kale ah, waxaa waxtar leh inay soo bandhigto fikradda ah ee dulinka ah.

Fikradda asaasiga ah ee dulinka ah - matalaad in qiimaha adag of signal waqti kala duwan ah oo matali kara sida wax soo saarka ah ee dhowr ah oo adag (oo ka madax bannaan waqti) iyo signal adag taas oo ah shaqo ka mid ah waqtiga.

Tusaale ahaan, waxaan u matalaan kartaa sababtoo ah shaqo A (2πνt + θ) sidii adag joogto A ∙ e ^jΘ.

Tan iyo fallaadhaha ka wakiil tiro (ama module) iyo xagal, ka dibna ay la garaaf ahaan wakiil fallaadha (dulinka ama) qoqobada in diyaarad xy ah.

Marka la eego in danab oo dhan "gaabiyo" capacitor si ixtiraam leh in hadda ka dhigan geesaha ay waxaa lagu abaabulaa in diyaarad adag sida ku cad Jaantuska kore. Sawirkaan, ee danab iyo fallaadhaha hadda wareejiyo in bilow ah jihada ka soo hor jeedda.

Tusaalahaan, hadda on capacitor ah ay sabab u tahay culaysiyo wareegsan. Sida capacitor ee AC circuit uu awood u leeyahay in uu kaydiyo iyo xilliyo dib lacag koronto, iyo il awoodeed oo u dhexeeya waa sarrifka joogta ah tamarta, taas oo ah in korontada yeedhay Waxyeelo.