Kukho iintlobo ezininzi zobonelelo lwamandla e-LED.Umgangatho kunye nexabiso lezibonelelo ezahlukeneyo zamandla zahluka kakhulu.Le yenye yezinto ezibalulekileyo ezichaphazela umgangatho wemveliso kunye nexabiso.Unikezelo lwamandla e-LED lunokwahlulwa ngokubanzi lube ngamacandelo amathathu, ukutshintsha komthombo okhoyo ngoku, unikezelo lwamandla lwe-IC oluhambelanayo, kunye nonikezelo lombane lokuchasa inyathelo-phantsi.
1. Umthombo wangoku oguqukayo oqhubekayo usebenzisa i-transformer ukutshintsha i-voltage ephezulu ukuya kwi-voltage ephantsi, kwaye yenza ukulungiswa kunye nokucoca ukuvelisa i-voltage ephantsi ezinzileyo yangoku.Umthombo wangoku oguqukayo oguquguqukayo wahlulahlulwe kunikezelo lwamandla oluzimeleyo kunye nonikezelo lwamandla olungabodwa.I-Isolation ibhekisela ekuhlukaniseni i-voltage ephezulu kunye nephantsi, kwaye ukhuseleko luphezulu kakhulu, ngoko ke imfuno yokufakelwa kwegobolondo ayikho phezulu.Ukhuseleko olungabodwa lubi kakhulu, kodwa ixabiso liphantsi.Izibane zemveli zokugcina umbane zisebenzisa umbane ongekho wodwa kwaye zisebenzisa igobolondo leplastiki egqunyiweyo ukukhusela.Ukhuseleko lombane wokutshintsha luphezulu kakhulu (ngokubanzi imveliso iphantsi kombane), kwaye ukusebenza kuzinzile.Ukungalungi kukuba isiphaluka sinzima kwaye ixabiso liphezulu.Umbane wokutshintsha umbane unobuchwephesha obuvuthiweyo kunye nokusebenza okuzinzile, kwaye okwangoku umbane oyintloko wokukhanyisa kwe-LED.
2. Umbane we-IC we-Linear usebenzisa i-IC enye okanye i-ICs ezininzi ukusabalalisa i-voltage.Kukho iintlobo ezimbalwa zamacandelo e-elektroniki, amandla ombane kunye nokusebenza kombane kuphezulu kakhulu, akukho capacitor ye-electrolytic ifunekayo, ubomi obude kunye neendleko eziphantsi.Ukungalungi kukuba i-voltage ephezulu ephumayo ayiyedwanga, kwaye kukho i-stroboscopic, kwaye i-enclosure iyadingeka ukuba ikhuselwe ngokuchasene nombane.Bonke basebenzisa umbane we-IC ohambelana nombane kumabango emarike ukuba akukho capacitors electrolytic kunye nobomi obude.Ubonelelo lwamandla e-IC lunokuthembeka okuphezulu, ukusebenza kakuhle okuphezulu kunye neenzuzo zexabiso eliphantsi, kwaye lubonelelo lwamandla olufanelekileyo lwe-LED kwixesha elizayo.
3. Umbane we-RC we-step-down power supply usebenzisa i-capacitor ukubonelela ngokuqhuba ngokushaja kunye nokukhupha.Isekethe ilula, ixabiso liphantsi, kodwa ukusebenza kubi, kwaye ukuzinza kubi.Kulula kakhulu ukutshisa i-LED xa i-voltage yegridi iguquguquka, kwaye imveliso iphezulu-i-voltage engekho yodwa.Iqokobhe elikhuselayo elikhuselayo.Imeko yamandla aphantsi kunye nobomi obufutshane, ngokuqhelekileyo ilungele kuphela iimveliso zamandla aphantsi kwezoqoqosho (ngaphakathi kwe-5W).Kwiimveliso ezinamandla amakhulu, imveliso yangoku inkulu, kwaye i-capacitor ayikwazi ukubonelela ngoku okukhulu, ngaphandle koko kulula ukutshisa.Ukongeza, ilizwe lineemfuno zamandla ombane wezibane eziphakamileyo, oko kukuthi, umbane ongaphezulu kwe-7W kufuneka ube mkhulu kune-0.7, kodwa unikezelo lwamandla oluxhathisayo lwenyathelo-phantsi lukude nokufikelela (ngokuqhelekileyo phakathi 0.2-0.3), ngoko ke iimveliso eziphezulu zamandla akufanele zisetyenziswe i-RC ye-step-down power supply.Kwimarike, phantse zonke iimveliso eziphantsi kunye neemfuno eziphantsi zisebenzisa i-RC inyathelo-phantsi amandla ombane, kwaye ezinye ezisezantsi, iimveliso zamandla aphezulu nazo zisebenzisa i-RC inyathelo-phantsi lombane.
Ixesha lokuposa: Aug-06-2021