Marvell full system intelligent LED program help LED lighting into the mass market

Just past 2011 is the LED image of the industry referred to as "naughty LED", China LED market of European and American manufacturers sounded the first signs of danger appearing everywhere, revenue quarter by warning, magnates of China LED lighting market, LED chip into the quantity price down channel, junduoli lightning collapse triggered a chain reaction of incandescent lamp "unveiled" LED IPO listed companies staged a year-end surge. Price war, quality war confused, blurred between upstream and downstream, everywhere is the red sea.

Insiders said that in 2011 LED inventory is too large, will make the market in 2012 than in 2011. This point of view, there are different views MarvELl's global technology marketing senior manager Lance Zheng, "the domestic installed capacity very much, this is the cause of overcapacity, but will improve the efficiency of light is to stimulate the development of LED industry is very good, because the light effect improve the use of the LED number will be small, so it can reduce the cost, promote the development of the LED market. As for the entire industry should continue to grow in 2012, the highlight is the LED lighting. "He held in Shenzhen, the 2012 industry and evision" technology seminar "on the media said.

2012 is the key year for the LED lighting market to take off

Lance pointed out that in 2011 the entire lighting market grew by more than 40% countries in the beginning of this year, with the phasing out of incandescent lamps in 2012 to become the key to the LED lighting market took off, LED lighting, lamps will grow very well, especially in commercial lighting, grow especially rapidly decreased with the future prices of LED chips and related spare parts prices, will further grow acceleration.

He pointed out that although the China market for LED lighting demand was not so big in Europe, the popularity of a few years may be slow, but it should be noted, LED 70% in China bulb manufacturing, R & D capability is also very strong, many are exported to Europe and the United States and other countries. Therefore, China will play an important role in promoting the popularity of LED lighting to the mass market.

However, although the bright future, but the cost of LED light source and drive is still very high, so the price is still relatively expensive LED lights, which is the reason for the delay in the LED lighting into the mass market. 2012, LED lighting manufacturers how to break through the siege, the mass market for LED lighting to bring it?

"Innovation is applied to LED drives to provide high efficiency and high quality light output at a lower cost, and promote the large-scale popularization of LED lighting is the mission of Marvell. Lance said, Marvell has a lot of advanced LED driver technology, and these LED driver chip is based on the modular hybrid architecture. In addition Marvell has the most advanced wireless communication technology, and LED lighting control together, provide the system to the customer, can help promote China manufacturers at the lowest cost, the best BOM performance advantage and fast implementation of LED lighting products. "

Figure 1:Marvell global technology marketing senior manager Lance Zheng optimistic about the 2012 LED lighting market.

Unique DSP kernel + OTP depth dimming curve adjustment

Marvell for the LED lighting market's new highly integrated 88EM8183 LED driver IC uses optical control technology of mixed signal Marvell unique architecture and advanced, providing high-quality light output and dimming performance comparable with incandescent lamp. Can be smoothly achieved as low as 1% LED current depth dimming, in contrast, similar to the LED driver solution is generally only able to achieve the dimming of 10% to 20%. In this way, people can not feel the light intensity, so the 88EM8183 can improve the performance.

The so-called hybrid architecture is that each chip inside the DSP kernel, you can cure algorithm. In addition to the DSP kernel, the inside of the chip

There is also a OTP to store a small number of parameters, according to different needs, adjust the dimming curve.

Lance said: "when we first designed the chip, according to the National Electrical Manufacturers Association SSL 6 (NEMA SSL 6) dimming standards. In this standard, the light curve is not defined, but the definition of a range, in the middle of this range there is a curve, the requirement is the best to do with incandescent curve fit. We have taken measures in combination with built-in OTP and DIM external resistor, adjust the dimming linearity to the incandescent lamp that can be very close to the curve, the depth (down to 1%), compared with similar LED dimming driver solution can only achieve 10% to 20%. So the curve is pretty good. "

88EM8183 is compatible with more than 110 different LED dimmer

Consumers use LED energy-saving lamps to replace incandescent and other traditional lighting solutions, but also want to get the same or better lighting experience. Unfortunately, they often find that the LED lights have a problem with dimming capability, so that the LED lamp can hardly be switched on or when the light is blinking. A lot of LED lights are not compatible with home mounted wall dimmer. 88EM8183 depth of the latest Marvell light single stage AC / provides compatibility wide dimming solution for OEM DC LED driver IC vendors and ODM vendors, the IC and the global market the vast majority of dimmers are compatible, but also provide the light output quality excellence, improve consumer satisfaction, reduce the return.

It is reported that, in order to ensure the dimming compatibility of 88EM8183 IC, Marvell is working closely with engineers and lighting control industry leader Lutron, all kinds of dimmers provided by Lutron test, including C - L series dimmer dimmer, the series can be used for both LED and traditional lighting.