Development status and trend of LED lighting driver in 2014-2015

LED lighting market has entered a fast growth track, such as Japan's LED lighting penetration rate has reached 30. Today's LED lighting market usage and business opportunities are general lighting, including 3W-15W residential LED lighting, 15W-75W commercial and building Decorative lighting, and 75W-250W outdoor and infrastructure LED lighting. Intelligent lighting will begin to grow significantly in the past two years. The mainstream solution for LED-driven sensor communication protocols will begin to emerge. Lighting driver suppliers are seeking to provide intelligent lighting platform related lighting solutions such as drivers, wireless modules, gateways, and APPs to promote LEDs. The rapid arrival of intelligent lighting. Under this circumstance, what is the trend of LED lighting driver market and price trend this year and next? What will happen to the product form and meaning? What are the dynamics and strategies of mainstream suppliers? This article will analyze the market situation of LED lighting drivers from 2014 to 2015. First, the market size is increasing, the price pressure is still large According to the IHS report data, the total revenue of global LED driver ICs in 2013 was 1.2 billion US dollars, of which one quarter was from lighting applications, and the overall output value is expected to jump to 2.1 billion in 2019. The US dollar, while the proportion of lighting driver IC production has expanded to 43, is the fastest growing area of ​​LED drivers. During the period, lighting-driven revenues have grown steadily year by year, and are expected to reach US$400 million in 2014 and US$500 million in 2015. Applications that have a critical impact on LED lighting drivers are still light bulbs (and fixtures), flashlights, landscape lighting and other applications that account for a small market share. The price of LED light sources is declining. In contrast, the price of drives has remained high, and the cost pressure is relatively large. The possibility of this pressure reduction is relatively small in the near future. It is expected that in the past two years, there will be a trend of dimmable LED lamp drive shipments exceeding non-dimming drivers. Dimmable drives are more expensive than non-dimmable, but some suppliers are looking to narrow the gap to drive the development of the dimmable market and gain greater market competitiveness, which is designed to increase technology competitiveness with dimming performance. Instead of obtaining higher sales prices, the price pressure on lighting driver ICs is still relatively large. It is expected that the price of dimmable driver ICs will drop significantly in 2015 (in fact, Marvell has reduced the price of dimming products from $1.50 to less than $1 last year and lower in 2015), further squeezing non-dimming drivers. IC market and price space. Second, the drive products of 2014-2015 Keywords: dimming and simplifying lamps has become more than just a simple lighting tool, but has a higher demand in energy saving and environmental atmosphere regulation. This has led LED lighting drivers to move smarter, while at the same time pursuing higher cost performance and ease of use, it also strives to be more streamlined. Intelligent lighting is not yet strictly defined, and LED driver sensor communication protocols are expected to be more recognized. Dimming applications have attracted most drive manufacturers, including international and domestic mainstream suppliers, and higher dimming compatibility will be a direction for drive efforts. The main obstacle to the development of dimmable lamps is the compatibility of dimmers, including compatibility with various existing dimmer technologies, such as TRIAC, low voltage (0~10v) linear and PWM dimmers. It also includes compatibility with next-generation electronic dimmers; and electronic dimmers have proven to be more difficult to interchange than traditional TRIAC dimmers. At present, the performance of LED driver solutions supported by international manufacturers is relatively good, but the structure is complex and the cost is relatively high. Chinese manufacturers are seeking breakthroughs. The thyristor dimming compatibility is higher than 90, and the price is lower than that of international manufacturers. Program. Policy standards place increasing demands on the performance of lamps and drives. Many stringent regulations around the world have raised requirements for PFC (Power Factor Correction) and input harmonics, such as ENERGY STAR requirements for LED luminaires to be adjustable down to measurable light 10, ENERGY STAR and European power supply manufacturers The association (IEC61000-3-2) requires residential lighting with a power factor greater than 0.7 and commercial lighting with a power factor greater than 0.9. Controlling costs while maintaining overall performance is no easy task, and lighting driver suppliers will prefer to optimize. The circuit design eliminates additional discrete components to reduce costs. Single-level drivers with small size, high PF, no stroboscopic, and dimming compatibility are likely to be available soon, and manufacturers have already made plans.

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