Tobanka Siraha Yaryar ee Tignoolajiyada Laambada Jidka LED

Mashruuca nalalka warshadaha ee LED-ka ma saameynayo jawiga caalamiga ah, laakiin sidoo kale sifooyinka gaarka ah ee warshadaha. Korontada laydhka dariiqa ee LED waa runtii mudnaanta ugu sareysa ee horumarka LED-ka ee hadda jira. Naqshadaynta la xidhiidha tignoolajiyada LED, hadda waxaa jira xalal badan iyo farsamooyin naqshad gaar ah. Bal aan mid mid u eegno. Waa maxay sababta sahayda laydhka dariiqyada LED ay joogto u tahay? Tilmaamaha qalabka nalalka LED-ka ayaa go'aaminaya in ay saameyn weyn ku leedahay deegaanka. Tusaale ahaan, heerkulka isbeddelku wuu kordhaa, wakhtiga hadda ee LED-ku wuu kordhi doonaa, korantadu way kordhisaa, wakhtiga hadda ee LED-kuna wuu kordhi doonaa. Ka-dhaafitaanka muddada-dheer ee shaqada hadda la qiimeeyay waxay si weyn u gaabin doontaa laambada LED-ka. LED-ka joogtada ah ee hadda jira waa in la hubiyo in qiimaha hadda shaqeeya aanu isbeddelin marka arrimaha deegaanka sida heerkulka iyo korantada ay isbeddelaan. 2. Nalalka LED-ka ee korontada ku shaqeeya korontada Hengli Saxnaanta joogtada ah ee suuqa ayaa liidata, sida nidaamka caanka ah ee suuqa, sida qorshaha caanka ah, qaladku wuxuu gaaraa ±8%, qaladka joogtada ah ee hadda jira aad buu u weyn yahay. Caadin u baahan ±3%. Marka loo eego nidaamka naqshadaynta 3% Korontada wax-soo-saarka waa in si fiican loo hagaajiyay ka hor inta aan la gaadhin ±3%. 3. Korantada shaqada ee laydhka dariiqa LED ee korontada Imtixaanka ka dib, badankood waxay ku shaqeeyaan 3.2V, markaa xisaabinta 3.2V waa macquul. Wadarta guud ee tamarta n kuul laambad taxane ah = 3.2* N4, LED wadada nalka korontada sahayda korontada hadda waa tan ugu habboon, sida hadda shaqeeya ee LED 350 mAh, warshadaha qaar ka mid ah ayaa loo isticmaalaa bilowga ah, iyo design waa 350 mAh. Dhab ahaantii, shaqada hadda jirta waa mid aad u kulul. Tijaabooyin badan oo isbarbardhigga ka dib, waxay ku habboon tahay in loo qaabeeyo sida 320 mAh. Isku day inaad yareyso kulaylka timaha, si koronto badan ay u noqoto tamar iftiin muuqata. 5. Intee bay le'eg tahay taxanaha iyo ballaca korantada ee looxa korontada ee waddada LED? Si loo sameeyo laydhka laydhka ee LED-ka ee ka shaqeeya inta u dhaxaysa qiyaasta korantada, AC85-265V, taxanaha LED iyo habka isku xirka guddiga iftiinka ayaa aad muhiim u ah. Isku day inaadan isticmaalin danab ballaadhan intii suurtogal ah, waxaa loo qaybin karaa AC220V, AC110Vna waa la kala soocay intii suurtagal ah, si loo hubiyo isku halaynta tamarta korontada. Maadaama tamarta hadda jirta guud ahaan tahay koronto aan go'doomin -voltage joogto ah, marka danabku yahay 110V, danabku kama badna 70V, tirada taxanaha kama badana 23 xadhig. Marka korantada wax soo saarka 220V, danab wax soo saarku wuxuu gaari karaa 156V. Si kale haddii loo dhigo, tirada taxanaha kama badna 45 xadhig. Ha yeelan nambar barbardhac aad u badan, haddii kale hadda shaqeeyaa aad buu u weyn yahay, korontadu si dhab ah ayaa loo kululeeyaa. Waxa kale oo jira xal ballaadhan oo danab ah. Magdhawga korantada isha APFC waa in la isticmaalo L6561/7527 si kor loogu qaado danabka ilaa 400V, ka dibna la yareeyo danabka. Xalkan waxa kaliya oo loo isticmaalaa xaalado gaar ah. 6, go'doomin/go'doomin guud oo go'doomin ah, haddii laga dhigay 15W, oo lagu dhejiyay tuubada korontada ee wadada LED, transformerkeedu aad buu u weyn yahay, way adagtahay in la geliyo. Waxay inta badan ku xiran tahay qaabka boosku wuxuu ku xiran yahay xaaladda gaarka ah. Guud ahaan, go'doominta waxay gaari kartaa kaliya 15W, in ka yar 15W, qiimuhuna aad buu qaali u yahay. Sidaa darteed, qiimaha-wax-ku-oolnimada go'doominta maaha mid sarreeya. Guud ahaan, go'doomin la'aanta waxay ku xisaabtamaysaa qaybo badan oo caadi ah, mugga ayaa noqon kara mid yar, ugu yaraanna wuxuu noqon karaa 8 mm sare. Dhab ahaantii, tillaabooyin badbaado oo aan gooni-gooni ah ayaa la sameeyaa. Boosku wuxuu ogol yahay sidoo kale waxaa loo isticmaali karaa sidii sahay koronto oo go'doon ah. 7. Sidee laydhka laydhka dariiqa ee loo yaqaan 'LED' loo waafajin karaa looxa laambada? Macaamiisha qaar ayaa marka hore naqshadeeya looxa laambada, ka dibna waxay helaan korontada. Way adag tahay in la helo sahay koronto ku habboon, ama kan hadda jira uu aad u weyn yahay, korantaduna aad ayay u yar tahay (sida 7x1wi). > 350mA, ama V25V), natiijadu waa kuleyl daran, hufnaan hoose, ama kala duwanaansho tamar la'aan. Dhab ahaantii, doorashada habka ugu wanaagsan ee lagu xiri karo LED kasta waa isku mid, laakiin saameynta korontadu waxay sameyn kartaa waxqabadka ugu fiican. Habka ugu fiican waa in marka hore lala xiriiro soo saarayaasha korontada iyo tolida. Ama waxaad ka bixisaa daryeel. 8. Skewers LED's iyo PFC factor factor go'doominta AC220V sare-voltage dhamaadka korantada awoodda awoodda guud ahaan awoodda gelis 1W = 1UF, AC110V1W = 2UF hadda waxay leedahay saddex xaaladood oo koronto PFC: mid ka mid ah PFC aan lahayn PFC iyada oo aan lahayn wax magdhow ah factor koronto wareegyada go'an, Qiimaha PF guud ahaan waa ku dhawaad ​​0.65; Midda labaad waa magdhowga awoodda aan caadiga ahayn ee PFC wareegga, taas oo ah, iftiinka magdhowga ee awoodda koronto, iyo guddiga wareegga wareegga hadda waa kalsoonida ugu wanaagsan, PF PF, PF Qiimaha guud ahaan waa agagaarka 0.92; saddex nooc oo firfircoon firfircoon 7527/6561 circuit ayaa sidoo kale loo isticmaalaa, taas oo ah, magdhow isha isha factor, loo yaqaan AC220V ee wareegga APFC, AC110V isticmaali kartaa capacitors electrolytic awood la mid ah, dooran 1W = 1W = 1.5uf. Qiimaha PF wuxuu gaari karaa 0.99, laakiin qiimaha xalkani wax yar ayuu ka xun yahay kan xalka labaad. Markaa xalka labaad ayaa loo isticmaalaa in ka badan. Wareegga PFC ee dadban: oo sidoo kale loo yaqaanno Chan-type PFC circuit, baaxaddeeda korantada ee DC waa kala bar meesha ugu sarreysa ee korantada AC. Haddii wax-soo-galku yahay 220V, ugu sarreeya waa 220*1.414 = 312V, kala badh korantada ugu sarreysana waa 156V. Sidaa darteed, tirada xadhkaha laydhka ee LED-ku waxay ka hooseeyaan 45 xadhig. Sidaa darteed, haddii aad rabto inaad hesho qodobbo awoodeed oo weyn, tirada nalalka waa inaysan aad u yarayn, haddii kale gobolka ugu fiican ee shaqada lama gaari doono. Korontadu waa inay buuxisaa awoodda wax soo saarka. Inta yar ee hadda shaqaynaysa ee qaybaha elektarooniga ah ee qiyaasta shaqada ee danabku, waa inta cimrigu dheer yahay, cimriga nolosha ayaa sii yaraanaya. Kuul korantada dariiqa LED-ka ayaa aad xasaasi ugu ah inta isgaarsiineed. Inta badan xadiga isgaadhsiinta, way ka sii xumaanaysaa raaxada iftiinka. Guud ahaan, capacitors electrolytic waa in loo isticmaalaa si loo ilaaliyo danab, iyo danab ee danab dhamaadka wax soo saarka waxaa loo isticmaalaa sida ugu badan ee suurtogalka ah. Awoodda dhamaadka awoodda korantada ee korantada hoose waa inaysan noqon mid aad u yar. Xulashada awoodda korantada ee sare ee korantada waxay la mid tahay go'doomin, kapacitor-dhamaadka wax-soo-saarka wuxuu doortaa 1UF