Isici samandla siyipharamitha ebalulekile yezibani eziholelekile, kungakhathaliseki ukuthi yikuphiizibani ze-LED ezishajwayonoma Izibani ze-LED ezomile. Ngakho-ke masiqhubeke siqonde ukuthi iyini isici samandla.
1, Amandla
Isici samandla sibonisa ikhono le-Isibani se-LEDukukhipha amandla asebenzayo. Amandla ayisilinganiso sezinga lokudluliswa kwamandla, futhi kumasekhethi e-DC angumkhiqizo we-voltage V kanye ne-A yamanje.Esistimu ye-AC, ayinkimbinkimbi kakhulu: enye yamanje ye-AC ijikeleza emthwalweni, okubizwa ngokuthi i-reactance current noma i-harmonic current, eyenza amandla abonakalayo (i-voltage Volt ngama-Amps amanje) abe mkhulu kunamandla wangempela. Umehluko phakathi kwamandla abonakalayo namandla angempela uholela kusici samandla, futhi isici samandla silingana nesilinganiso samandla angempela namandla abonakalayo. Ngakho-ke amandla wangempela ohlelweni lwe-AC alingana nesikhathi samandla ancikile isici samandla.
Okusho ukuthi: isici samandla = amandla angempela / amandla abonakalayo. Isici samandla somthwalo olayini kuphela njengesifudumezi sikagesi nesibani singu-1. Umehluko phakathi kwamandla angempela namandla abonakalayo emishini eminingi mncane kakhulu futhi awunaki, kuyilapho umehluko phakathi kwemishini enamandla njengezibani mkhulu kakhulu futhi ubalulekile. .
2. Amandla abonakalayo
Amandla asebenzayo: umkhiqizo we-AC voltage kanye ne-AC yamanje. Ngefomula njengokuthi: S=UI. Lapho u-S elinganiselwe amandla okukhipha ku-VA (volt-ampere); I-U ilinganiselwe i-voltage ephumayo ku-V, njenge-220V, 380V, njll.; Ngilinganiselwe okukhiphayo okwamanje ngo-A. Amandla abonakalayo aqukethe izingxenye ezimbili: amandla asebenzayo (P) namandla asebenzayo (Q). Amandla asebenzayo abhekisela engxenyeni yomsebenzi owenziwe ngokuqondile. Ngokwesibonelo, ukukhanya up, motor rotation, electronic circuit ukusebenza. Ngenxa yokuthi la mandla asephenduke ukushisa, angazizwa ngokuqondile ngabantu, ngakho-ke abanye abantu banenkohliso, okungukuthi, amandla asebenzayo njengamandla abonakalayo, owaziyo ukuthi amandla asebenzayo ayingxenye kuphela
Amandla abonakalayo, anefomula: P = Scos θ = UIcosθ =UIF. Lapho u-P engamandla asebenzayo ku-W (watts); I-F=cos θ ibizwa ngokuthi isici samandla, futhi u-θ umehluko wesigaba samaza kagesi ahlukene emthwalweni ongaqondile. Amandla asebenzayo ayingxenye yamandla agcinwe kusekethe kodwa angasebenzi ngokuqondile, avezwa ifomula: Q = Ssin θ = UIsinθ. Lapho i-Q ingamandla asebenzayo ku-var (ukuntuleka).
NgobaAmalambu akhanyayokanye nazo zonke ezinye izifunda zikagesi ezisebenza ku-DC voltage, akunakwenzeka ukusebenza ngaphandle kwamandla.
Isikhathi sokuthumela: Aug-28-2024