LED lighting driver IC digital and intelligent process accelerated

, according to a statistical prediction LEDinside 2015 global LED lighting industry output value will reach $25. 7 billion, the growth rate of about 30%, total 31 lighting market share. 3%. Along with the amplification of the total market, terminal customers more and more high to the requirement of product quality and price, industry reshuffle, evolution of the trend is more obvious. When it comes to market opportunities for growth in 2015 points, the personage inside course of study generally bullish: with good compatibility with dimmer for selling products, is conducive to automated production of light source power integration module, can be integrated into the family of intelligent network with intelligent control interface of lamps and lanterns, and have special spectrum output of special lamps and lanterns, etc. As 'heart' of the LED lamps and lanterns, power driver IC, it is necessary to add more technological innovation the development both of the chip design, manufacturing and packaging process, or the use of digital control and intelligent technology, etc. , all need to provide a more mature and perfect solution, for really high quality, green energy-saving LED lighting system lay the foundation. Increasing integration, reduce the BOM cost throughout the LED lighting power supply, the development of the market in the field of LED replacement light, mainstream scheme is single-stage isolated constant current source; Small class of lamps and lanterns, mainstream solution for single stage than isolated PFC constant current source, and high-end lamps and lanterns, after constant current source will join level to ripple lines, in order to realize the function of high PF no stroboscopic; In high power outdoor lighting, PFC flyback or two levels of structure of resonant converter is the mainstream of the market. According to the evolution of these LED lighting drive circuit, especially in the civilian market, drive IC competition focus reflected in a higher level of integration, the fewer the number of peripheral devices, as well as higher product cost performance, etc. Grace wisdom pu semiconductor QiFeng senior application engineer, grace wisdom pu semiconductor QiFeng senior application engineer, said: 'for indoor lighting, improve the level of integration of chip, reduce the peripheral components, reduce the BOM cost, easy to heat dissipation, typesetting and automated production of packaging, complete protection function, rich dimming interface is to drive the overall requirements of IC. How to reduce the use of plug-in components such as transformer, capacitor, is helpful for realizing automation production, will be the driver IC r&d focus. According to introducing, 'grace wisdom pu has on the one hand, to replace the lamp used, introduced a low cost solution, at the same time in terms of high-end commercial lighting and external power supply, introduced based on the digital control platform for the dimmer, and the first linear adjustable light scheme. In power lamps | in the application, grace of pu is introduced based on the digital control chip solution, under the wide input and output voltage with high precision of output current, high power factor, low THD, low standby power consumption, with simulation, and the tone light interface, and support a variety of isolated/non topology. 'On the surface, the product price has become the main focus of competition in the market, but in fact is still on technology innovation competition. 'Silicon force jie semiconductor technology ( Hangzhou) Co. , LTD. Field application director huang will say: 'the development of LED lighting switch to 'innovation', from 'alternative' silicon lijie the current development of LED lighting driver IC product line direction is in view of the requirements of customers design simplicity in keeping the peripheral circuit is simple, small volume, high efficiency at the same time, through its own the advantage of the manufacturing process, improve product integration, reduce the BOM cost from the system, make products better overall performance, and vary according to the requirements of the LED lighting application, provide a more complete system solutions, to adapt to different terminal market. 'Marvell LED division general manager and technical director wan-feng zhang LED power supply design of the three key factors - — Cost, space and efficiency, Marvell LED division general manager and technical director wan-feng zhang mentioned that driver IC and peripheral devices to reduce the cost of mainly depends on the pressure from the terminal market and technology innovation brings the possibility of the high integration of the chip will lead to smaller volume of power supply, and in improving the performance of the product at the same time, reduce the peripheral devices, reduce material cost and save the volume. The other it is understood that in the second half of 2015 Marvell plans will adopt to simplify the topological structure of the third generation of products, to further reduce the size and make the BOM cost reduced from 20 to 30%, and supports ZigBee, bluetooth, Wi - Fi wireless lighting projects, while increasing drive efficiency. Hangzhou silan microelectronics co. , LTD. , the power supply and power drive product line senior product manager wang dong in high PF value no stroboscopic scheme optimization, hangzhou silan microelectronics co. , LTD. , the power supply and power drive product line senior product manager wang dong said, now users requiring driving scheme should have high PFC, nor have the stroboscopic phenomenon inherent to the single-stage PFC, and also have limits to cost, so no stroboscopic scheme should be in accordance with the cost and performance requirements of different, use different methods to solve. Silan microelectronics will launch this year low THD ( Less than 10%) Scheme, and the peripheral without increasing costs; Application can be used in isolation and the isolation of no stroboscopic scheme; And compatible with DLT digital dimming intelligent lighting solution, etc.