At the end of 2014, Apple is about to launch iWatch, and there will be a high chance of using the sapphire cover, which is expected to further drive the market demand for sapphire substrates. The iWatch sapphire cover is expected to reach 6% of the global sapphire market demand in 2014. It is unde

There are five LED lighting control methods on the market: Front edge phase cut (FPC), thyristor dimming 2. Rear edge phase-cut (RPC) MOS tube dimming 3. 1-10V dimming 4. DALI (Digital Addressable Lighting Interface) 5. DMX512 (or DMX) dimming Front edge phase-cut control dimming The leading

In order to solve the problems caused by the separate setting of the battery charging circuit and the LED driving circuit in the traditional design, this paper designs an independent photovoltaic LED lighting system based on Zeta/Sepic bidirectional converter. This paper

The LED driver power supply converts the power supply into a specific voltage and current to drive the LED light-emitting voltage converter. Usually: the input of the LED driving power supply includes high-voltage power frequency AC (ie, mains), low-voltage DC, high-voltage DC, low-v

In order to prevent damage to the thyristor caused by the failure of the AC circuit inversion of the thyristor, the traditional method is to use a fast fuse for overcurrent protection. The advantage is that the line is simple, but the reliability is poor. The reason is that this method does not mo

From April this year, LeTV and Xiaomi entered the market with a price of 3979 yuan (including 980 yuan for a two-year service fee) and 3,999 yuan, and completely drove the price of 4K TVs bearing the "tall" label to the bottom. As a result, the explosive growth of 4K TV sales has

Recently, the Irish Tesco supermarket signed a 2 million (about 17 million yuan) euro LED transformation agreement, this fund comes from Ireland's 70 million euros national energy efficiency fund, the National Energy Efficiency Fund was launched by the Irish Energy Minister Pat Rabbitte. The w

With the advent of the mobile Internet era, tablets and mobile phones have become so popular that our digital lives are no longer fixed somewhere, but are walking anywhere, anytime. However, relatively cumbersome desktops still have a place to use. After all, if you have an Apple iMac, I

On June 3, Beijing time, the U.S. Department of Commerce made a preliminary anti-dumping investigation against China's anti-dumping and anti-subsidy investigations on photovoltaic products imported into the United States. This is when the United States imposed high anti-dumping and cou

1 Scope <br> This standard specifies the naming method for lamp holders and lamp holders for electric light sources. 2 Symbology <br> One of the purposes of this symbology is to make each assigned symbol short, easy to read and helpful in indicating its purpose.

Project Introduction Nanchang Honggutan Wanda Plaza is located in the core central business district of Honggutan CBD in Nanchang, at the intersection of Fenghuang Zhongdao and Huizhan Road. The project covers an area of ​​about 200 mu and has a total construction a

On April 9, the National Energy Administration issued the “Circular on Clearly Explaining Matters Concerning Power Business License Management” (hereinafter referred to as the “Notice”), which included matters relating to the simplification of the application for li