Wakambotarisa here diki, rinopenya LED mwenje uye wakashamisika kuti inoshanda sei? Nei iine kupenya kwakafanana uye isingatsva nekukurumidza? Sei mamwe maLED achipenya zvakanyanya asi mamwe achidzima nekukurumidza? Yese yemibvunzo iyi inodzika kurudzi rwemutyairi we LED anoshandiswa.
LEDs (Chiedza Emitting Diodes) imhando yetekinoroji yekuvhenekesa iyo inoshanda, yakasimba, uye inogara kwenguva refu. Vanoda mutyairi we LED kuti ashande nemazvo uye kune yavo yakazara kugona. Iyi positi ichapinda munyika yevatyairi ve LED, kunyanya iyo Constant Current uye Constant Voltage LED madhiraivha, uye kukubatsira kuti unzwisise kuti ndeipi ingave yakakodzera pane zvaunoda mwenje.
Kana iwe uchida kuziva nezve maLED kana uine chirongwa chinosanganisira mwenje we LED, verenga kuti unzwisise izvi zvakakosha zvikamu zvizere.
I. Kutanga
Nhanganyaya Pfupi kune LEDs (Chiedza-Emitting Diodes)
Chiedza Emitting Diodes or LEDs midziyo yesemiconductor inoburitsa chiedza kana magetsi achipfuura nepakati pavo. Ivo vanozivikanwa kwazvo nehunyanzvi hwavo uye hupenyu hurefu, zvichiita kuti vazivikanwe kune akasiyana mwenje maapplication, kubva kumwenje wepamba kusvika kumasaini emigwagwa uye kunyange madhijitari skrini.
Tsanangudzo yeKudiwa kweVatyairi ve LED
Kunyange zvazvo achinyatsoshanda uye achiita zvakasiyana-siyana, ma LED anoshanda zvakasiyana kubva kune echinyakare incandescent kana fluorescent bulbs. Vanoda chaiwo azvino uye voltage mamiriro kuti ashande nemazvo, ayo anofambisa mutyairi we LED.
Pasina mutyairi, iyo LED inogona kupisa zvakanyanya uye kusagadzikana, zvichitungamira kune sub-optimal kuita, kupenya kusina kuenzana, kana kunyange kupera simba. Naizvozvo, mutyairi we LED chikamu chakakosha chechero LED system.
II. Kunzwisisa Vatyairi ve LED
Tsanangudzo yemutyairi we LED
An Mutyairi weLED imagetsi ega ega anogadzirisa simba rinodiwa kune LED kana tambo (array) ye LEDs. Inovimbisa kuti ma LED anoshanda pasi pemamiriro avo akatarwa.
Basa uye Kukosha kweVatyairi ve LED mu LED Lighting Systems
Vatyairi ve LED vanoita basa rakakosha mumagadzirirwo emwenje e LED. Ivo vanochengetedza chiyero cheazvino uye magetsi, izvo zvakakosha kudzivirira maLED kubva mukukuvadzwa kwekupisa uye kuve nechokwadi kuti anoshanda nepamusoro-soro.
Pasina mutyairi we LED akakodzera, ma LED anowanzo kushanduka kwemagetsi, zvichiita kuti kupenya kusingaenderane, kuchinja kwemavara, kupenya, uye kukuvara kunogona kuitika. Saka, mutyairi akanaka we LED akakosha kune hupenyu hurefu uye kuita kwechero LED mwenje system.
III. Constant Current LED Drivers
Tsanangudzo yeConstant Current LED Drivers
A Constant Current LED mutyairi inodzora kubuda kwezvino, ichiichengeta inoenderana zvisinei nemagetsi ekuisa kana shanduko yemutoro. Iyi ficha yakakosha pakugonesa maLEDs nekuti anoda inogara iripo kuti ishande nemazvo.
Mashandiro Azvino Azvino Madhiraivha e LED Anoshanda
Mutyairi weConstant Current anogadzirisa voltage pane inobuda kuti irambe ichiyerera. Kana kupikisa mhiri kwe LED kunowedzera nekuda kwekushanduka kwekushisa kana zvimwe zvinhu, mutyairi anoderedza kubuda kwemagetsi kuti arambe aripo.
Iyo pfungwa yeThermal Runaway uye Mabatiro Azvino Azvino Madhiraivha e LED Vanodzivirira
Thermal runaway inyaya inogona kuitika ne LEDs. Izvo zvinoitika kana kuwedzera kwekushisa kunotungamirira kukuwedzera kwezvino, zvichiita kuti LED inopisa zvakanyanya, zvichiita kuti kutenderera kunoparadza kunogona kukuvadza LED.
Vatyairi veConstant Current vanodzivirira izvi nekuchengetedza ikozvino yakagadzikana kunyangwe kushanduka kwetembiricha, zvichidzikamisa njodzi yekupisa kwekupisa.
Mabhenefiti ekushandisa Constant Current LED Drivers
Madhiraivha Anogara aripo anovimbisa kupenya kunoenderana kune ese maLED akabatana munhevedzano, achiwedzera kuwirirana kwekuona. Izvo zvinoshandawo mukudzivirira kupisa kwe LED kana kupisa kwekupisa.
Zvinogona Kukanganisa kana Kugumira
Pasinei nemabhenefiti avo, vatyairi veConstant Current vanogona kunge vaine zvisingakwanisi. Semuenzaniso, ivo vanoda kunyatsoenderana neiyo LED zvinodikanwa uye inowanzo kudhura kupfuura Constant Voltage driver.
IV. Constant Voltage LED Vatyairi
Tsanangudzo yeConstant Voltage LED Drivers
A Constant Voltage LED mutyairi inochengetedza voltage yakagadziriswa zvisinei nekudhirowa kwemutoro ikozvino. Izvi zvinowanzo shandiswa kune ma LED masisitimu atove akashongedzerwa neanopikisa kana pane-bhodhi ikozvino kutonga, senge Magetsi strip magetsi.
Mashandiro Anoita Voltage LED Madhiraivha Anoshanda
Mutyairi weConstant Voltage anochengetedza voltage yakafanana pane inobuda, zvisinei nemutoro uripo. Izvi zvinonyanya kubatsira kana uchigonesa akawanda maLED akabatana mukufanana.
Zvakanakira Kushandisa Constant Voltage LED Drivers
Constant Voltage vatyairi vanozivikanwa kugadzira uye kuisa mainjiniya, ayo anogona kurerutsa maitiro ekuseta. Ivo vanogona kudzikisa mutengo muhukuru-chikero maapplication nekuda kwedhizaini yavo yakatwasuka.
Zvinogona Kukanganisa kana Kugumira
Imwe mipimo mikuru yeConstant Voltage madhiraivha kutsamira kwavo pane zvimwe zvikamu zvekutonga kwazvino mune yega yega LED unit. Izvi zvinogona kuita kuti hurongwa huve hwakaoma uye hunogona kusavimbika mukufamba kwenguva.
Mienzaniso yeMaapplication
Yakajairika maapplication eConstant Voltage madhiraivha anosanganisira epasi-kabhati mwenje uye LED flex strip application uko akawanda maLED akabatana akafanana.
V. Kuenzanisa pakati peConstant Current uye Constant Voltage LED Drivers
Tafura inotevera inoratidza misiyano yakakosha pakati peConstant Current uye Constant Voltage LED driver:
| Constant Zviripo | Constant Voltage | |
| goho | Constant Zviripo | Constant Voltage |
| Inodzivirira Thermal Runaway | Ehe | Aihwa |
| Kupenya Kunoenderana | Ehe | Zvinoenderana Nekuwedzera Ikozvino Kudzora |
| Shandisa Nyaya | High Power LEDs | LED mitsetse, mabara, nezvimwe. |
Sarudzo pakati pezviviri zvinoenderana nekushandiswa chaiko. Constant Current drivers vanowanzo farira ma LEDs epamusoro-soro, uko kutonga kwekushisa kwakakosha. Kune rimwe divi, madhiraivha eConstant Voltage anoshandiswa kune zvigadzirwa zveLED zvine akawanda maLED akaungana pamwechete, semwenje wetambo dze LED, mitsetse ye LED, uye mabara e LED.
VI. Kusarudza Kurudyi LED Driver
Zvinhu Zvokufunga nezvazvo Paunenge Uchisarudza Pakati Penguva Yazvino uye Constant Voltage LED Drivers
Kusarudza mutyairi we LED akakodzera kunoenderana nezvinhu zvakasiyana, kusanganisira iyo chaiyo LED kana array's voltage zvinodiwa, nhamba uye kurongeka kwemaLED muhurongwa (series kana parallel), uye mamiriro emagetsi enzvimbo yako.
Mazano eKusarudza Iyo Kurudyi LED Mutyairi weChaiyo Maapplication
Mutyairi weConstant Voltage anodiwa kana iyo LED kana array ichitsanangura chaiyo voltage. Nekudaro, kana uri kushanda neakakwira-powered LEDs, mutyairi weConstant Current angave anobatsira kudzivirira kutiza kwemafuta uye kuve nechokwadi chekupenya kunoenderana.
Tarisa kune zvakatemwa nemugadziri uye bvunza nyanzvi yekuvhenekesa kana iwe uchida kujekeswa.
VII. MIBVUNZO
VIII. Mhedziso
Vatyairi ve LED, vangave Constant Current kana Constant Voltage, vanoita basa rakakosha mukuchengetedza kuita uye hupenyu hurefu hwemaLED ako. Nepo ese ari maviri ane mabhenefiti uye zvaasingakwanisi, sarudzo yako inofanira kunge yakavakirwa pane chaizvo zvinodiwa zveiyo LED system yako.
