隔離 or 非隔離？條形三防燈電源怎么選？

　　長期關(guān)注萊福德的客戶朋友可能會知道，萊福德?lián)碛袠藴势穫湄浀膸齑骟w系，可為客戶提供快速的交期反應(yīng)。最近，在三防燈電源交期困難的大環(huán)境下，現(xiàn)貨庫存這個優(yōu)勢讓萊福德在歐洲三防燈市場引發(fā)了一波采購熱潮。

　　Lifud clients who have been following its products for a long time probably know that the reason why Lifud can provide them with fast delivery service is that Lifud has standard stock system for its finished products. Nowadays, harder as the delivery of tri-proof light LED driver becomes, Lifud tri-proof light LED driver has been the first choice on the European market by virtue of its spot stock.

　　那萊福德到底可為客戶朋友提供哪些三防燈電源產(chǎn)品?今天小編就帶大家一起走進萊福德三防燈電源解決方案，并淺析在三防燈應(yīng)用中隔離與非隔離方案的差異與選擇。

　　Then what kind of tri-proof light LED drivers can Lifud provide for its clients? Today we are gonna have a fundamental analysis on the differences of isolated & non-isolated tri-proof light LED drivers and how to choose them.

　　1

　　萊福德歐規(guī)條形/三防燈電源解決方案Lifud EU-Standard linear or tri-proof light LED driver solutions

　　萊福德三防燈電源主要分為非隔離常規(guī)、隔離常規(guī)、非隔離調(diào)光、隔離調(diào)光四類方案，功率覆蓋4-90W，全系列產(chǎn)品無頻閃，滿足各區(qū)域頂級認證及應(yīng)急市場認證：ENEC、CB、CE、RCM、CCC、EL，且符合最新ERP及諧波認證。

　　Lifud tri-proof light LED driver solutions can be divided into non-isolated & non-dimmable version, isolated & non-dimmable version, non-isolated & dimmable version and isolated & dimmable version. And all of them have features of conforming to the latest ERP standard and harmonic current emissions standard, flicker-free effects, certifications required in different countries (ENEC, CB, CE, RCM and CCC), emergency lighting certification (EL) and various power options from 4W to 90W.

　　①非隔離常規(guī)方案 Non-isolated & non-dimmable version

　　LF-FMRxxxYS是萊福德經(jīng)典非隔離條形/三防燈電源解決方案，已有4年超180萬Pcs全球各地項目應(yīng)用驗證，該系列轉(zhuǎn)換效率可達92%，擁有20/40/60/80YS四個系列型號，功率涵蓋11-80W。

　　LF-FMRxxxYS, Lifud classical non-isolated linear or tri-proof light LED driver, has been sold all over the world for more than 1.8 million pcs within 4 years. It has features of 92% high efficiency, 4 models (LF-FMR20/40/60/80YS) and various power options from 11W to 80W. Please check the following table for detailed parameters.

　　②隔離常規(guī)方案 Isolated & non-dimmable version

　　LF-GMRxxxYSII是條形/三防燈通用常規(guī)解決方案，擁有20/30/40/60/80YSII五個系列型號，功率涵蓋8-80W，參數(shù)詳情見下圖表格。

　　LF-GMRxxxYSII, Lifud isolated and non-dimmable linear or tri-proof light LED driver, has 5 models (LF-GMR20/30/40/60/80YSll) and various power options from 8W to 80W. Please check the following table for detailed parameters.

　　③非隔離調(diào)光方案 Non-isolated & dimmable version

　　LF-FSDxxxYA是萊福德即將上市的一款非隔離DALI&Push條形調(diào)光電源，產(chǎn)品帶外接電阻接口，可自定義電流設(shè)定，且可接入軟件自定義緩啟動等調(diào)光參數(shù)。產(chǎn)品擁有37/60/90YA三個系列型號，功率涵蓋18-90W。

　　LF-FSDxxxYA is a Lifud linear non-isolated DALI & PUSH dimmable LED driver which is going to be launched soon. It is equipped with an external resistance connector for self-defined current settings and can be connected to softwares to enable its dimming function (its dimming parameters are no less than self-defined and slow startup ones). Moreover, it has 3 models (LF-FSD037/060/090YA) and various power options from 18W to 90W.

　　PS：新品上市，參數(shù)詳情請聯(lián)系萊福德銷售工程師

　　PS: LF-FSDxxxYA series is a new product that is going to be launched soon, please contact with Lifud salesmen for more details about its parameters.

　　④隔離調(diào)光方案 Isolated & dimmable version

　　LF-GSDxxxYE是萊福德隔離DALI&Push調(diào)光電源，全系列包含12/20/30/40/60/80YE六個系列型號，功率涵蓋4-80W，是市場上功率系列最齊全的三防燈電源產(chǎn)品之一，其調(diào)光深度小于0.1%，且調(diào)光全程平滑無頻閃。

　　LF-GSDxxxYE is one of the isolated DALI & PUSH tri-proof light LED drivers with full output power options from 4 to 80W on the market. In addition, it has features of 6 models (LF-GSD012/020/030/060/080YE), 0.1% dimming depth, flicker-free effect and smooth dimming effect.

　　2

　　非隔離與隔離方案選擇How to choose non-isolated LED driver and isolated LED driver?

　　以上四個方案可分為隔離和非隔離兩類，那他們有何不同呢?這需要從他們的電路設(shè)計了解入手。

　　If we want to know the differences between them, we are supposed to have a rough understanding on their circuits. 隔離方案：

　　電路設(shè)計上使用變壓器將高壓電壓降到較低的電壓，然后再整流成直流電輸出，整個過程是“電-磁-電”的轉(zhuǎn)換。

　　In the circuit design of isolated LED driver, the high voltage of LED driver is relatively reduced by the transformer first, and then the LED driver is rectified to output with direct current. And the whole process is the transformation of “electricity-magnetism-electricity”.

　　▼隔離電路設(shè)計 Isolated circuit design

　　非隔離方案：

　　電路設(shè)計上使用電感等元器件將高壓進行降壓后整流成直流電輸出，整個過程過程是“電-電”的轉(zhuǎn)換。

　　In the circuit design of non-isolated LED driver, the high voltage of LED driver is reduced by inductor, etc. first, and then the LED driver is rectified to output with direct current. And the whole process is the transformation of “electricity-electricity”. ▼非隔離電路設(shè)計 Non-isolated circuit design

　　電路設(shè)計的不同就帶來了元器件使用、成本、效率、輸出參數(shù)等的不同，同類功率應(yīng)用電源的隔離與非隔離方案主要差異如下表格：

　　The difference of circuits means that the quantities of used components, cost, efficiency and output parameters are different as well. Please check the following table for the differences between isolated LED driver and non-isolated LED driver with the same output power and function.

　　雖然單獨看非隔離電源，其安全性會使部分客戶望而卻步，但因一般三防燈應(yīng)用位置較高，除專業(yè)人員維護，普通人員基本觸碰不到燈具。且一般燈具本身會做絕緣接地措施，故實際上應(yīng)用非隔離方案電源時觸碰燈具外殼基本不會有安全隱患。

　　When purchasing the non-isolated LED driver, some clients presumably hesitate because of its safety performance. But in general, the tri-proof light is installed at a higher place where our common people cannot reach instead of those professional maintenance personnel. What’s more, the tri-proof light itself is insulated with grounding wire connected, which basically eliminates the potential safety hazards generated by its casing’s exposition to people.

　　所以最終非隔離與隔離方案的差異主要落腳在了性價比、效率上與具體參數(shù)上：

　　In conclusion, the non-isolated LED driver and isolated one are differentiated by the cost, efficiency and specific parameters.

　　·如項目對成本要求較為苛刻，且還未確定燈具輸入，可選用非隔離電源方案，助力燈具降本并提高效率，節(jié)省后期運維費用。

　　·如項目對可靠性要求遠高于成本要求時，或燈具輸入已經(jīng)設(shè)計好必須使用低壓時，隔離方案就是成為項目首要選擇。

　　· If the cost of the light fixture applied in the lighting project is limited, the non-isolated LED driver can be regarded as a great choice. In this way, the cost of the light fixture can be subsequently reduced, which is beneficial to cut down the expenditures on its operation and maintenance.

　　· If the reliability of the light fixture applied in the lighting project is more important compared with the cost, or the low voltage used in the design of light fixture is necessary, the isolated LED driver is the first choice for the lighting project.

　　以上就是今天萊福德條形/三防燈解決方案的分享了。That’s all for today.

　　從萊福德首創(chuàng)非隔離日光燈管電源到首家非隔離大功率電源安全應(yīng)用，在非隔離電源的領(lǐng)域，萊福德?lián)碛惺嗄甑脑O(shè)計與應(yīng)用驗證經(jīng)驗，所以如果大家有任何非隔離方案應(yīng)用需求與技術(shù)疑惑點，歡迎大家隨時留言或聯(lián)系銷售工程師。

　　Regardless of Lifud pioneered non-isolated tube light LED driver or its first non-isolated high power LED driver, the safety performance of them has been validated by Lifud 10 years of experience on the design and applications of LED drivers. Therefore, Lifud is professional to drive your puzzles about non-isolated LED driver applications and techniques away.

    更多信息請查看企業(yè)專區(qū)：http://www.progcable.com/cp55214