具有T-PWM超深度調(diào)光技術(shù)的智能電源——2019神燈獎申報技術(shù)

項目名稱：  具有T-PWM超深度調(diào)光技術(shù)的智能電源

LTECH T-PWM Super Depth Dimming Intelligent dimmable driver

申報單位：  珠海雷特科技股份有限公司

綜合介紹或申報理由：

1.自創(chuàng)T-PWM超深度調(diào)光技術(shù)，滿足各種不同的商業(yè)空間燈光效果需求，最低亮度小于0.01%，達到行業(yè)領(lǐng)先水準；

2.調(diào)光精確度高，調(diào)光過程不產(chǎn)生LED色偏，不影響LED壽命；

3.選用獨特的程序算法與硬件搭配，人眼視覺感受更加舒適，低亮度調(diào)光極致柔和。

4.調(diào)光無頻閃，依據(jù)IEEE 1789標準測試，達到高頻豁免級別；

1. Self-created T-PWM Super depth dimming technology, which can meet various commercial space lighting effect requirements, with the minimum brightness less than 0.01%, reaching the industry-leading level;

2. High dimming accuracy, this is not produce LED color deviation in the dimming process, and does not affect the life of the LED;

3. The unique program algorithm and hardware combination make the human visual perception more comfortable, and the low-brightness dimming is extremely soft.

4. Dimming without flicker according to the IEEE 1789 standard test, reach the high frequency exemption level;

主要技術(shù)參數(shù)：

輸出OUTPUT:
工作電壓范圍Output Voltage：10-42Vdc
最大輸出電壓Max Output Voltage ：48Vdc
工作電流范圍Output Current：300-900mA
負載功率范圍Output Power Range：3W-30W
頻閃級別Fluctuation Depth：高頻豁免級別Exemption assessment level.
調(diào)光范圍Dimming Range：0~100%，調(diào)光深度dimming depth0.01%
PWM頻率PWM Frequency：≤3600 Hz
低頻電流紋波（<120Hz）LF current ripple(<120hz)：<2%
電流精度Current Accuracy：±5%
紋波與噪聲Ripple & Noise：≤2V

輸入INPUT：
調(diào)光接口Dimming Interface : 0-10V(1-10V-10V PWM/RX),PUSH DIM
輸入電壓Input Voltage Range：100-240Vac，127-250Vdc（直流輸入不支持Push Dim）
頻率范圍Frequency ：0/50/60Hz
輸入電流Input Current：115Vac≤0.31A，230Vac≤0.18A
功率因素Power Factor：PF>0.98/115Vac PF>0.92/230Vac (滿載)
諧波THD : 230Vac@THD≤12% (滿載)
效率Efficiency ：>85%  
浪涌電流Inrush Current(typ.)：冷啟動6.4A/230Vac;在50%Ipeak下測試twidth=50us
Cold start 6.4A at 230Vac (twidth=50μs measured at 50% Ipeak)
抗浪涌Control surge capability：L-N: 1kV
漏電流Leakage Current ：<0.5mA/230Vac

環(huán)境ENVIRONMENT：
工作溫度Working Temperature：ta: -20 ~ 50℃，tc: 75℃
工作濕度Working Huity：20 ~ 95%RH, 無冷凝 non-condensing
儲存溫度\濕度Storage Temp., Huity：-40 ~ 80℃, 10~95%RH
溫度系數(shù)Temp. Coefficient：±0.03%/°C(0-50℃)
耐振動Vibration ：10-500HZ, 2G 12分鐘/周期，X,Y,Z軸各72分鐘。
10~500Hz, 2G 12min./1cycle, period for 72min. each along X, Y, Z axes.

不同品牌調(diào)光驅(qū)動方式的效果對比圖；Contrast diagram of the effect of different brands of dimming optical drive mode 

中文文章鏈接Link：http://www.ltech.cn/html/News/T-PWM.html

英文文章鏈接Link：http://www.ltech.cn/html/en/news/T-PWM.html

T-PWM調(diào)光展示視頻；T-PWM dimming video display
中文視頻鏈接Link：https://v.qq.com/x/page/c0754o37nlv.html
英文視頻鏈接Link：https://v.qq.com/x/page/a07547ch51y.html

與國內(nèi)外同類產(chǎn)品或同類技術(shù)的比較情況：

一、與CCR模擬調(diào)光的對比：Compare to CCR analog dimming
模擬調(diào)光/電流恒定降低（CCR, Constant Current Reduction）調(diào)光，指的就是改變通過LED的電流來線性調(diào)整LED的亮度，理想情況下LED的亮度與通過電流成正比。
這種調(diào)光原理在LED上進行調(diào)光時有以下幾個特性：

Analog dimming/ CCR (Constant Current Reduction) dimming refers to the linear adjustment of LED brightness by changing the current passing through LED. Ideally, the brightness of LED is proportional to the passing current.
This dimming principle has following acteristics when dimming LED:

【優(yōu)勢】
調(diào)光時不產(chǎn)生低噪聲，在使用數(shù)碼攝像設(shè)備拍照攝影不容易產(chǎn)生紋波及閃爍。

【劣勢】
1.當(dāng)電流發(fā)生變化時會造成LED的色偏。
2.模擬調(diào)光的范圍較窄，多臺電源控制時一致性、調(diào)光線性差。
3.LED不是在額定的電壓和電流下工作，長期工作會縮短LED使用壽命。
4.由于LED驅(qū)動器始終處于工作狀態(tài)，隨著電流減少，LED驅(qū)動器轉(zhuǎn)換效率迅速降低，因此會增加電源系統(tǒng)的功率損耗。

【Advantages】
1.Without low noise in dimming. In the use of digital camera equipment photography, not easy to produce ripple and flicker.

【Shortages】
1.It will cause color shift of the LED when current changes.
2.Narrow dimming range, poor dimming consistency and linearity at multiple drivers.
3.LED is not working with rated voltage and current and the LED life would be shorten in long-term working.
4.The LED driver conversion efficiency would rapidly reduce with the reduction of current, thus increasing the power loss of the power system.

二、與CCR+PWM混合調(diào)光的對比：compare to CCR+PWM dimming
CCR（模擬）+PWM調(diào)光，指的是在模擬調(diào)光的基礎(chǔ)上在低區(qū)加入PWM調(diào)光，其目的是希望通過PWM來彌補模擬調(diào)光范圍不足的問題，同時保留模擬調(diào)光中高區(qū)拍攝無頻閃的優(yōu)勢。但在吸收兩者優(yōu)點的同時，也將兩者缺點兼并了過來，在實際應(yīng)用過程中表現(xiàn)的特性為：

【優(yōu)勢】
1.對比單純的模擬調(diào)光，調(diào)光范圍向低亮度延伸，應(yīng)用場景更廣。
2.保留了中高亮度下的調(diào)光無頻閃的優(yōu)勢。

【劣勢】
1.模擬調(diào)光時精準度不高，調(diào)光線性不好的問題并沒有改善。
2.在模擬與PWM轉(zhuǎn)變的時候會不自然。
3.低亮度下PWM調(diào)光仍可能存在頻閃問題，部分拍攝會有紋波現(xiàn)象。
4.低區(qū)PWM是技術(shù)難點，大部分廠商在完成轉(zhuǎn)入PWM調(diào)光后，調(diào)光存在響應(yīng)延時

CCR（Analog）+ PWM Dimming means on the basis of analog dimming adding the PWM dimming mode at low brightness, which aims to make up the insufficient dimming range of CCR, at the same time keep the advantage of non-flicker at high brightness dimming of CCR. But both advantages absorb but also defects. The practical problems are as following:

【Advantages】
1.Wider dimming range comparing to pure analog dimming, and wider application.
2.Keep the advantage of non-flicker at dle and high brightness dimming.

【Shortages】
1.The accuracy of analog dimming is not high, and the problem of poor dimming linearity has not been improved.
2.Unnatural during analog and PWM transitions.
3.PWM dimming may still exist stroboscopic problems at low brightness, and some shots may exist ripple phenomenon.
4.At Low brightness of PWM is technical difficulty. Most manufacturers have a response delay dimming after they add PWM dimming into CCR.

三、與普通PWM調(diào)光的對比：Compare to PWM dimming
脈沖寬度調(diào)制（PWM, Pulse Width Modulation），簡稱脈寬調(diào)制。原理是通過PWM 波開啟和關(guān)閉LED 來改變正向電流的導(dǎo)通時間以達到亮度調(diào)節(jié)的效果。
這個方式常常被比喻成高頻次的開關(guān)動作，即LED反復(fù)處于0%亮度及100%亮度，所以PWM優(yōu)勢和劣勢都很容易凸顯（如低亮度下的頻閃問題），對PWM技術(shù)的控制及打磨決定PWM調(diào)光的好壞，所以常規(guī)情況下的PWM特性也很明顯：

【優(yōu)勢】
1.調(diào)光精確度極高，調(diào)光過程不會產(chǎn)生任何LED色偏，不影響LED壽命。
2.優(yōu)質(zhì)的PWM調(diào)光，在很大范圍內(nèi)調(diào)光也不會發(fā)生閃爍現(xiàn)象。

【劣勢】
1.PWM調(diào)光時，程序與硬件配合不好容易使驅(qū)動電路產(chǎn)生人耳聽得見的低噪。
2.若PWM脈沖頻率很低的話，人眼就會感到閃爍，如果頻率不高，普通數(shù)碼攝像產(chǎn)品拍照攝影也可以捕抓到波紋、頻閃現(xiàn)象。
3.若PWM頻率過高，雖然可以達到無頻閃的標準，但是調(diào)光灰度級別區(qū)間則會縮減，并在低亮度時出現(xiàn)閃爍。

Pulse Width Modulation(PWM), which principle is to change the on-time of forward current by the PWM wave to turn the LED on and off to achieve the brightness adjustment effect.

This mode is often compared to a high-frequency switching action, that is the LED is repeatedly at 0% and 100% brightness, so the advantages and disadvantages of PWM are obvious (such as stroboscopic problems at low brightness). The control and development of PWM technology determines the quality of PWM dimming. So commonly features of PWM dimming are also obvious:

【Advantages】
1.Extremely high dimming accuracy, no color shift during dimming process, and won’t affect LED life.
2.High-quality PWM dimming, non-flicker in a wide range of dimming.

【Shortages】

1.If the PWM program and hardware do not match well, the drive circuit would easily cause low noise during dimming.

2.If the PWM pulse frequency is very low, human eyes will feel flicker. And if the frequency is not high, even ordinary digital camera devices can capture ripples and stroboscopic phenomena.

3.If the PWM frequency is too high, although it will up to flicker-free standard, but the dimming gray level range will be reduced and have flicker at low brightness.

技術(shù)及工藝創(chuàng)新要點：

1.優(yōu)化調(diào)光算法，調(diào)光過程肉眼觀測或者視頻拍照無抖動，超順滑；

2.根據(jù)硬件特點，軟件調(diào)整調(diào)光曲線，視頻拍照實現(xiàn)無條紋；

3.具有變頻技術(shù)，根據(jù)不同的亮度，改變調(diào)光頻率，實現(xiàn)超低亮度設(shè)計，模擬自然光亮滅。

1. Optimized dimming algorithm, no jitter in naked eye observation or video photography during dimming process, super smooth;

2. According to the hardware acteristics, the software adjusts the dimming curve, and the video camera can take pictures without stripes;

3. With frequency conversion technology, according to different brightness, change the dimming frequency, to achieve ultra-low brightness design, simulation of natural light off.

實際運用案例和用戶評價意見：

案例一、華為智能生活館 Case 1 Huawei Smart Life Pavilion ；
案例鏈接Link：http://www.ltech.cn/html/About/Project-Cases/huawei.html

案例二、阿里未來酒店 Case 2. Alibaba Furuter hotel ；
案例鏈接 Link：http://www.ltech.cn/html/About/Project-Cases/ali.html

獲獎、專利情況：

1.國家電光源質(zhì)量檢驗中心出具的無頻閃測試報告文件；

No stroboscopic test report issued by national electric light source quality inspection center

2.T-PWM商標注冊文件；

Trademark registration documents

3.3C認證

是否有“智能設(shè)計”？

1.內(nèi)置MCU，可定制編程、調(diào)光曲線及漸變時間等;

2.變頻調(diào)光技術(shù)，0-100%全范圍深度調(diào)光；

3.燈光緩啟動、緩關(guān)閉設(shè)計，呈現(xiàn)更舒適的照明體驗；

4.創(chuàng)新的熱管理技術(shù)，保護電源壽命

5.自動識別0-10V/1-10V輸入，智能切換調(diào)光范圍，匹配0-10V/1-10V調(diào)光器；

1. Built-in MCU, customizable programming, dimming curve and gradient time, etc.;

2. Variable frequency dimming technology, 0-100% full range depth dimming;

3. Slow start and slow close design of lights, presenting a more comfortable lighting experience;

4. Innovative thermal management technology to protect power life

5. Automatic identification of 0-10v / 1-10v input, intelligent switching dimming range, matching 0-10v / 1-10v dimmer;

申報單位介紹：

雷特科技（股票代碼：832110）是位于珠海的國際化科技公司，自2001年起，致力于LED智能控制技術(shù)的研究與創(chuàng)新，是中國首家LED照明控制器的制造商。

LTECH(Stock Code: 832110) is an international technology company located in Zhuhai, we have engaged in R&D of LED lighting control technology since 2001,is Chinese first LED lighting controller manufacturers.

十八年的技術(shù)沉淀積累，雷特擁有過百項專利，打造了LED控制器、智能調(diào)光電源、智能家居三大產(chǎn)品線，首創(chuàng)T-PWM超深度調(diào)光技術(shù)，亮度低于0.01%，調(diào)光過程全程無抖動，頻閃測試儀測試無頻閃或達到高頻豁免級別

After 18 years of technical accumulation, LTECH has owned more than 100 patents, created three product lines of LED controller, intelligent dimming power supply and smart home, and initiated T-PWM super depth dimming technology with brightness lower than 0.01%,no flicker in the whole dimming process, and stroboscopic tester can test without stroboscopic or reach the high frequency exemption level.

雷特的創(chuàng)新產(chǎn)品被應(yīng)用到世界各地，為著名的地標建筑、主題樂園、星級酒店、辦公大樓、高級商場等上萬個中大型照明工程提供了優(yōu)質(zhì)產(chǎn)品與解決方案，深獲各界的認同與贊譽。

LTECH innovative products have been applied all over the world, providing high-quality products and solutions for tens of thousands of medium and large lighting projects, such as famous landmarks, theme parks, star hotels, office buildings and high-end shopping malls, which have won recognition and praise  all walks of life.

產(chǎn)品圖片：