Isiphumo samandla kwizibane zentloko ze-LED

I-Power factor yiparameter ebalulekileyo yezibane ezikhokelwayo, kungakhathalisekiizibane ze-LED ezitshajwayookanye Izibane ezomileyo ze-LED. Ke masiqonde ngakumbi ukuba yintoni na amandla.

1, Amandla
Isici samandla sibonakalisa isakhono seIsibane se-LEDukuvelisa amandla asebenzayo. Amandla ngumlinganiselo wezinga lokudluliselwa kwamandla, kwaye kwiisekethe ze-DC yimveliso ye-voltage V kunye ne-A yangoku. Kwinkqubo ye-AC, inzima kakhulu: enye i-AC yangoku ijikeleza kumthwalo, ebizwa ngokuba yi-reactance current okanye i-harmonic current, eyenza amandla abonakalayo (i-voltage Volt nge-Amps yangoku) inkulu kunamandla okwenene. Umahluko phakathi kwamandla abonakalayo kunye negunya lokwenyani likhokelela kwinto yamandla, kwaye umba wamandla ulingana nomlinganiselo wamandla okwenyani kumandla abonakalayo. Ngoko ke amandla okwenene kwinkqubo ye-AC ilingana namaxesha axhomekeke kumandla ombane.
Oko kukuthi: amandla amandla = amandla okwenene / amandla abonakalayo. Kuphela amandla omthwalo womgca onjengesifudumezi sombane kunye nebhalbhu yokukhanya ngu-1. Umahluko phakathi kwamandla okwenene kunye namandla abonakalayo ezixhobo ezininzi zincinci kakhulu kwaye azinamsebenzi, ngelixa umahluko phakathi kwezixhobo ze-capacitive ezifana nezibane zinkulu kakhulu kwaye zibalulekile. .

2. Amandla abonakalayo
Amandla asebenzayo: imveliso yombane we-AC kunye ne-AC yangoku. Ngefomula njenge: S=UI. Apho i-S ilinganiswe amandla emveliso kwi-VA (volt-ampere); U-U ulinganisa i-voltage yemveliso kwi-V, efana ne-220V, i-380V, njl.; Ndilinganiswe kwimveliso yangoku kwi-A. Amandla abonakalayo aqulethwe ngamacandelo amabini: amandla asebenzayo (P) kunye namandla asebenzayo (Q). Amandla asebenzayo abhekisa kwinxalenye yomsebenzi owenziwe ngokuthe ngqo. Umzekelo, ukukhanya, ukujikeleza kwemoto, ukusebenza kwesekethe ye-elektroniki. Ngenxa yokuba eli gunya liye laba bubushushu, linokuviwa ngokuthe ngqo ngabantu, ngoko abanye abantu banenkohliso, oko kukuthi, amandla asebenzayo njengamandla abonakalayo, ngubani owaziyo amandla asebenzayo yinxalenye kuphela
Amandla abonakalayo, kunye nefomula: P = Scos θ = UIcosθ = UIF. Apho i-P ingamandla asebenzayo kwi-W (watts); F=cos θ ibizwa ngokuba yinto yamandla, kwaye θ ngumahluko wesigaba semisinga yamandla ombane ahlukeneyo kumthwalo ongeyonxalenye. Amandla asebenzayo yinxalenye yamandla agcinwe kwisiphaluka kodwa engasebenzi ngokuthe ngqo, echazwe ngefomula: Q = Ssin θ = UIsinθ. Apho i-Q ingamandla asebenzayo kwi-var (ukungabikho).

KubaIzibane ze LEDkunye nazo zonke ezinye iisekethe ze-elektroniki ezisebenza kumbane we-DC, akunakwenzeka ukusebenza ngaphandle kwamandla.