Otu esi ebelata voltaji nke capacitor na ọkụ ịnya ụgbọ ala LED

N'imeIkanamịnya ụgbọ ala ike ọkọnọ sekit dabere na ụkpụrụ nke capacitor voltaji mbelata, voltaji mbelata ụkpụrụ bụ roughly dị ka ndị a: mgbe a sinusoidal AC ike ọkọnọ u na-etinye aka na capacitor sekit, ụgwọ na efere abụọ nke capacitor na ọkụ eletrik n'etiti. efere ndị ahụ bụ ọrụ nke oge. Nke ahụ bụ ikwu: uru bara uru na njupụta nke voltaji na ugbu a na capacitor na-esokwa iwu Ohm. Ya bụ, mgbe a na-edozi njupụta voltaji na ugboro ole dị na capacitor, a ga-agbanye ike sinusoidal AC ugbu a. The nta nke capacitive reactance bụ, ukwuu capacitance uru bụ, na ukwuu nke ugbu a na-eru site capacitor bụ. Ọ bụrụ na ejikọtara ibu kwesịrị ekwesị n'usoro na capacitor, enwere ike nweta isi iyi voltaji mbelata, nke nwere ike ịpụta site na ndozi, nzacha na nkwụsi ike voltaji. Nsogbu dị mkpa ka a hụ ebe a bụ na na usoro sekit a, capacitor na-eji ike na sekit, ma ọ dịghị eri ike, ya mere arụmọrụ nke capacitor buck circuit dị oke elu.

Na-emekarị, isi ịnya ụgbọ ala sekit nkeIkanamike ọkọnọ dabere na ụkpụrụ nke capacitor buck ga-abụ nke Buck capacitor, sekit na-amachi ugbu a, sekit nzacha nzacha na voltaji stabilizing shunt circuit. N'etiti ha, ndị nzọụkwụ-ala capacitor bụ Ẹkot mgbada-ala transformer na nkịtị voltaji stabilizing sekit, nke na-na kpọmkwem jikọọ AC ike ọkọnọ circuit na-agba fọrọ nke nta niile AC ike ọkọnọ u, otú metal film capacitor enweghị polarity. kwesịrị ịhọrọ. N'oge a na agbanwuru ike, ọ nwere ike ịbụ ọnụ ọgụgụ kasị elu na uru kasị elu nke mma ma ọ bụ adịghị mma ọkara okirikiri nke U. n'oge a, ozugbo ugbu a ga-adị nnọọ ukwuu. Ya mere, ọ dị mkpa ijikọ ihe mgbochi mgbochi ugbu a n'usoro na sekit iji hụ na nchekwa nke sekit, nke bụ isi ihe mere sekit na-amachi ugbu a dị mkpa. Nhazi chọrọ nke rectifier na nzacha sekit bụ otu ihe ahụ nke nkịtị DC na-achịkwa ike ọkọnọ sekit. Ihe mere a chọrọ voltaji stabilizing shunt circuit bụ na na voltaji na-ebelata sekit, uru bara uru nke ugbu a m kwụsiri ike ma ghara imetụta mgbanwe nke ibu ugbu a. Ya mere, na voltaji stabilizing sekit, e kwesịrị inwe a shunt circuit ime mgbanwe nke ibu ugbu a.


Oge nzipu: Jun-11-2021