2024十大(da)(da)LED驅動(dong)(dong)電源(yuan)品牌排行榜(bang)是CN10排排榜(bang)技術研(yan)究部(bu)門(men)和CNPP品牌數(shu)(shu)據(ju)研(yan)究部(bu)門(men)重(zhong)磅推(tui)出(chu)的LED驅動(dong)(dong)電源(yuan)十大(da)(da)名牌,榜(bang)單由(you)CN10/CNPP品牌數(shu)(shu)據(ju)研(yan)究部(bu)門(men)通過資料收(shou)集整理并基于大(da)(da)數(shu)(shu)據(ju)統計(ji)、云(yun)計(ji)算、人(ren)工智能(neng)、投票(piao)點贊以及根據(ju)市場和參數(shu)(shu)條件變化(hua)專業(ye)(ye)測評而得(de)出(chu)。旨在引起(qi)社(she)會(hui)的廣泛關注,引領(ling)行業(ye)(ye)發展方向(xiang),并推(tui)動(dong)(dong)更多(duo)LED驅動(dong)(dong)電源(yuan)品牌快速發展,為眾多(duo)LED驅動(dong)(dong)電源(yuan)實力(li)企業(ye)(ye)提(ti)供(gong)充分(fen)展示自(zi)身實力(li)的平臺,排序不分(fen)先后,僅(jin)提(ti)供(gong)參考使用(yong)。
1、按驅動方式分為恒流式和恒壓式
(1)恒(heng)流(liu)式(shi):恒(heng)流(liu)式(shi)電(dian)路(lu)特(te)點是輸出電(dian)流(liu)恒(heng)定(ding),輸出電(dian)壓隨著(zhu)負載(zai)電(dian)阻(zu)大(da)(da)小變化而變化,恒(heng)流(liu)式(shi)電(dian)源(yuan)(yuan)驅動LED是較為理想(xiang)的方(fang)案并且不(bu)怕負載(zai)短路(lu),LED亮度一(yi)致性較好。缺點:成本昂貴、禁止負載(zai)完全(quan)開路(lu)、LED數量不(bu)宜過多(duo),因為電(dian)源(yuan)(yuan)都有最大(da)(da)承受電(dian)流(liu)以(yi)及電(dian)壓。
(2)恒(heng)(heng)壓(ya)(ya)式:恒(heng)(heng)壓(ya)(ya)式驅動電(dian)路特點(dian)是輸(shu)出(chu)電(dian)壓(ya)(ya)恒(heng)(heng)定,輸(shu)出(chu)電(dian)流(liu)隨著負載電(dian)阻(zu)大小變化而變化,電(dian)壓(ya)(ya)不會很高(gao)。缺點(dian):禁(jin)止(zhi)負載完全(quan)短(duan)路、電(dian)壓(ya)(ya)波(bo)動會影響LED亮度(du)。
2、按(an)電(dian)路結構分(fen)為電(dian)容降壓(ya)、變壓(ya)器降壓(ya)、電(dian)阻降壓(ya)、RCC降壓(ya)、PWM控(kong)制式
(1)電(dian)容降(jiang)壓:采用(yong)電(dian)容降(jiang)壓方式的(de)LED電(dian)源(yuan)容易容易受電(dian)網電(dian)壓波動(dong)的(de)影響,沖擊(ji)電(dian)流(liu)過大,電(dian)源(yuan)效率低,但是結構簡單。
(2)變壓器降壓:這種方式轉換效率低下(xia),可靠性不(bu)高,變壓器笨重。
(3)電(dian)阻降壓(ya):這種方(fang)式與(yu)電(dian)容降壓(ya)方(fang)式差不多,只不過(guo)電(dian)阻需要消(xiao)耗更大(da)的(de)電(dian)能(neng),因此(ci)電(dian)源效(xiao)率也是比較低下(xia)。
(4)RCC降壓式:這種方式應用(yong)的(de)就多一(yi)點,不僅因為它(ta)的(de)穩壓范(fan)圍寬,同時它(ta)的(de)電(dian)源利(li)用(yong)效率也能達到70%多,但是它(ta)的(de)負載電(dian)壓紋波較(jiao)大(da)。
(5)PWM控制式:采用PWM這種(zhong)方式就不(bu)得(de)(de)不(bu)提(ti)一下了,因(yin)為(wei)就現在而言PWM控制方式設(she)計的LED電(dian)(dian)(dian)源是(shi)比較理想的,這種(zhong)LED驅動電(dian)(dian)(dian)源輸出電(dian)(dian)(dian)壓或電(dian)(dian)(dian)流都很穩定,電(dian)(dian)(dian)源轉換(huan)效(xiao)率也能達到80%,甚至90%以上(shang),值得(de)(de)注意的是(shi),這種(zhong)電(dian)(dian)(dian)源還(huan)可(ke)以附加多重保護電(dian)(dian)(dian)路。
3、按(an)輸入(ru)輸出是否隔離可分為隔離式和非隔離式
(1)隔離(li)(li)式(shi)(shi)(shi):隔離(li)(li)是為了安全(quan)起(qi)見,通過變壓器將輸(shu)入(ru)輸(shu)出(chu)進行隔離(li)(li)。常見拓撲類(lei)型有正激式(shi)(shi)(shi)、反(fan)激式(shi)(shi)(shi)、半橋(qiao)式(shi)(shi)(shi)、全(quan)橋(qiao)式(shi)(shi)(shi)和推挽(wan)式(shi)(shi)(shi)等。正激式(shi)(shi)(shi)和反(fan)激式(shi)(shi)(shi)拓撲多用于小功率(lv)場合,器件少而簡單易行,其中(zhong)反(fan)激式(shi)(shi)(shi)的(de)輸(shu)入(ru)電壓范(fan)圍寬,常與PFC結合在一起(qi),其應用更(geng)加廣泛是反(fan)激式(shi)(shi)(shi)隔離(li)(li)驅動(dong)。
(2)非隔離式:隔離型驅動(dong)器一般由(you)電(dian)(dian)池、蓄電(dian)(dian)池、穩壓電(dian)(dian)源供電(dian)(dian),主要(yao)用(yong)(yong)于便攜式電(dian)(dian)子產品、礦燈、汽(qi)車等用(yong)(yong)電(dian)(dian)設備(bei)。