Ka hopena o ka mana ma nā kukui LED

He mea koʻikoʻi ka mana o nā kukui alakaʻi, ʻaʻohe meanā kukui LED rechargeablea i ʻole nā ​​kukui LED maloʻo. No laila e hoʻomaopopo hou kākou i ke ʻano o ka mana.

1, mana
Hōʻike ka mana mana i ka hiki o kaKe kukui LEDe hoopuka i ka mana hana. ʻO ka mana ke ana o ka wikiwiki o ka hoʻouna ʻana o ka ikehu, a ma nā kaapuni DC ʻo ia ka huahana o ka volta V a me kēia A. Ma ka ʻōnaehana AC, ʻoi aku ka paʻakikī: ke holo nei kekahi o kēia manawa AC i ka ukana, i kapa ʻia ʻo reactance current a i ʻole. harmonic current, ka mea i oi aku ka mana ike (voltage Volt by current Amps) mamua o ka mana maoli. ʻO ka ʻokoʻa ma waena o ka mana ʻike a me ka mana maoli e alakaʻi i ka mea mana, a ua like ka mana mana me ka ratio o ka mana maoli i ka mana ʻike. No laila ua like ka mana maoli i ka ʻōnaehana AC me ka mana hilinaʻi i ka manawa o ka mana.
ʻO ia hoʻi: mana kumu = mana maoli / mana ʻike. ʻO ka mea mana wale nō o ka ukana laina e like me ka mea hoʻomehana uila a me ke kukui kukui ʻo 1. ʻO ka ʻokoʻa ma waena o ka mana maoli a me ka mana ʻike ʻia o nā mea hana he nui a liʻiliʻi loa, ʻoiai ʻo ka ʻokoʻa ma waena o nā lako capacitive e like me nā kukui he nui a koʻikoʻi. .

2、Ka mana ʻikea
ʻO ka mana ikaika: ka huahana o ka volta AC a me kēia manawa AC. Me ke kumu hoʻohālike penei: S=UI. Ma kahi o S i helu ʻia ka mana puka ma VA (volt-ampere); Ua helu ʻia ʻo U i ka uila puka ma V, e like me 220V, 380V, etc.; Ua helu ʻia au i kēia manawa ma A. ʻElua ʻāpana ka mana ʻike: mana hana (P) a me ka mana reactive (Q). ʻO ka mana hana e pili ana i ka ʻāpana o ka hana i hana pololei ʻia. ʻO kahi laʻana, ʻo ke kukui i luna, ka hoʻololi ʻana i ke kaʻa, ka hana kaapuni uila. No ka mea, ua lilo kēia mana i wela, hiki ke ʻike pololei ʻia e ka poʻe, no laila he hoʻopunipuni kekahi poʻe, ʻo ia hoʻi, ʻo ka mana hana e like me ka mana ʻikea, ka mea i ʻike i ka mana hana he ʻāpana wale nō ia.
ʻO ka mana ʻikea, me ke ʻano: P = Scos θ = UIcosθ =UIF. Ma kahi o P ka mana hana ma W (watts); Ua kapa ʻia ʻo F=cos θ ʻo ke kumu mana, a ʻo θ ka ʻokoʻa o ka māhele o nā au uila like ʻole ma kahi haawe laina ʻole. ʻO ka mana reactive ka ʻāpana o ka mana i mālama ʻia ma ke kaapuni akā ʻaʻole i hana pololei ʻia, i hōʻike ʻia e ke ʻano: Q = Ssin θ = UIsinθ. Ma kahi o Q ka mana reactive ma var (lack).

No ka meaNā kukui alakaʻia me nā kaapuni uila ʻē aʻe a pau e hana ana ma ka volta DC, ʻaʻole hiki ke hana me ka mana ʻole.