Kukosha kwekudzivirira kwekudzivirira kwe LED Kunze Mwenje
Kurova kwemheni imagetsi ekuyerera ayo anowanzo takura mamirioni emavolts kubva kumakore kuenda pasi kana kune rimwe gore. Panguva yekufambisa, mheni inogadzira magineti emagetsi mumhepo, ichikwevera zviuru zvemavolts (surges) kune tambo yemagetsi uye kugadzira mafambiro emhepo anofamba mazana emamaira kure. Uku kurwiswa zvisina kunanga uku kunowanzoitika pawaya dziri kunze, semwenje yemumugwagwa. Zvishandiso zvakaita semarambi emigwagwa uye zviteshi zvepasi zvinoburitsa masurges. Iyo surge yekudzivirira module yakanangana nekupindira kwekuvhiya kubva kutambo yemagetsi kumucheto wepamberi wedunhu. Inotamisa kana kutora simba rekuwedzera, kuderedza kutyisidzira kwekuwedzera kune mamwe maseketi anoshanda, senge AC/DC magetsi mayuniti mumagetsi emwenje e LED.
Kune ekunze LED mwenje dhiraivha simba, iyo inoshandiswa nharaunda inosarudza kuti kudzivirira mheni chiratidzo chakakosha chekuyera kuita kwayo. Naizvozvo, dhizaini yekudzivirira mheni inofanirwa kutariswa kune yekunze LED magetsi ekupa. Kutora mheni yekudzivirira dunhu reiyo AC yekupinza kwesimba sosi inozivikanwa nemainjiniya semuenzaniso, kuchengetedzwa kwemheni kweiyo AC yekupinza kwemagetsi kunonyanya kukonzerwa nekutora simba rinopfuura rinounzwa nekurova kwemheni kana kuburitsa simba nyika nenzira yakafanotemerwa. Dzivisa kukanganisa kumucheto kumashure kwemagetsi.
Kune marambi emumugwagwa eLED, mheni inogadzira kukwira kwakakonzerwa patambo yemagetsi. Uku kuwedzera kwesimba kunogadzira kuvhuvhuta pawaya, ndiko kuti, masaisai ekuwedzera. Kuvhiya kunofambiswa kuburikidza nekuiswa kwakadaro. Nyika yekunze ine surge. Iyo wave ichagadzira tipi pane sine wave mune 220V yekufambisa mutsara. Kana iyo muromo ichipinda muchiedza chemugwagwa, ichakuvadza iyo LED street ramp circuit.
Marambi emumigwagwa ave aripo kwemakore akawanda. Nei tichida kuwana dziviriro yemheni yemarambi emumugwagwa? Kutaura zvazviri, mwenje we-high-pressure sodium uye marambi echinyakare e-mercury akashandiswa kare akagadzirwa ne-high-voltage bulbs, iyo ine simba rekudzivirira mheni. Mumakore achangopfuura, zviedza zve LED zvave zvichinyanya kufarirwa. Mwenje ye LED inoda diki rekupa voltage. Kazhinji, magetsi emagetsi anoshandiswa kushandura AC simba kuita DC simba. Izvi zvinoita kuti mwenje wemugwagwa we LED usava nekudzivirira mheni, saka module yekudzivirira yekuvhiya inoda kugadzirirwa marambi emumugwagwa.
Reference: US matatu-level yekudzivirira mheni standard
MuUS National Standards yakaburitswa muna 2015, matanho matatu ekudzivirira mheni akaunzwa. Chikonzero ndechekuti mamakisi matatu ari kukonzerwa nekuti madzinza ekuMabvazuva nekuMadokero ari muUnited States akasiyana. Migodhi yakakwira inogona kusvika makumi matatu kusvika makumi mana, nepo migodhi yakaderera ichingova nekamwe chete kana kaviri. Naizvozvo, nhanho nhatu dzakajairika. 6kV, 10kV uye 20kV. Uku zvakare kuchinjika kune vanogadzira luminaire uye hurumende dzemuno. Hurumende dzemunharaunda dzinogona kusarudza kushandisa zviyero zvinoenderana nemamiriro chaiwo.