Umphumela wamandla ezibanini ze-LED

Isici samandla siyipharamitha ebalulekile yezibani ze-LED, kungakhathaliseki ukuthiizibani ze-LED ezingashajwa kabushanoma izibani ze-LED ezomile. Ngakho-ke ake siqonde kabanzi ukuthi iyini i-power factor.

1, Amandla
Isici samandla sichaza ikhono le-Isibani sekhanda se-LEDukukhipha amandla asebenzayo. Amandla ayisilinganiso sezinga lokudlulisa amandla, futhi kumasekethe e-DC angumkhiqizo we-voltage V kanye nowamanje A. Kuhlelo lwe-AC, kuyinkimbinkimbi kakhulu: amanye amandla e-AC ajikeleza emthwalweni, okubizwa ngokuthi i-reactance current noma i-harmonic current, okwenza amandla abonakalayo (i-voltage Volt ngama-Amps wamanje) abe makhulu kunamandla angempela. Umehluko phakathi kwamandla abonakalayo namandla angempela uholela ku-power factor, futhi i-power factor ilingana nesilinganiso samandla angempela kumandla abonakalayo. Ngakho-ke amandla angempela ohlelweni lwe-AC alingana namandla axhomekekile aphindaphinda i-power factor.
Okusho ukuthi: amandla = amandla angempela / amandla abonakalayo. Amandla kuphela omthwalo oqondile njenge-heater kagesi kanye ne-bulb yesibani angu-1. Umehluko phakathi kwamandla angempela namandla abonakalayo emishini eminingi mncane kakhulu futhi awubalulekile, kanti umehluko phakathi kwemishini yokuphatha efana nezibani mkhulu kakhulu futhi ubalulekile.

2, Amandla abonakalayo
Amandla asebenzayo: umkhiqizo we-AC voltage kanye ne-AC current. Ngefomula efana nale: S=UI. Lapho i-S ilinganiswe khona amandla okukhipha ku-VA (volt-ampere); i-U ilinganiswe nge-voltage yokukhipha ku-V, njenge-220V, 380V, njll.; u-I ulinganiswe nge-output current ku-A. Amandla abonakalayo aqukethe izingxenye ezimbili: amandla asebenzayo (P) kanye namandla asebenzayo (Q). Amandla asebenzayo abhekisela engxenyeni yomsebenzi owenziwe ngqo. Isibonelo, ukukhanya, ukujikeleza kwemoto, isekethe kagesi esebenza. Ngenxa yokuthi la mandla asephenduke ukushisa, angazwakala ngqo ngabantu, ngakho abanye abantu banombono okhohlisayo, okungukuthi, amandla asebenzayo njengamandla abonakalayo, owaziyo ukuthi amandla asebenzayo ayingxenye nje
Amandla abonakalayo, ngefomula: P = Scos θ = UIcosθ = UIF. Lapho u-P engamandla asebenzayo ku-W (watts); u-F=cos θ ubizwa ngokuthi i-power factor, kanti u-θ umehluko wesigaba we-voltage currents ehlukene kumthwalo ongewona owe-linear. Amandla asebenzayo yingxenye yamandla agcinwe kusekethe kodwa angasebenzi ngqo, aboniswa yifomula: Q = Ssin θ = UIsinθ. Lapho u-Q engamandla asebenzayo ku-var (ukuntuleka).

NgobaIzibani zekhanda ze-LEDkanye nazo zonke ezinye izifunda zikagesi ezisebenza ku-voltage ye-DC, akunakwenzeka ukusebenza ngaphandle kwamandla.