LED full range of lighting penetration, high energy efficiency drive program lighting prospects

In today's electricity demand and production of increasingly unbalanced conditions, the most effective coping way is to improve the efficiency, namely the use of technology, with less power to perform the same task or function. The use of electricity in many areas, with common buildings, for example, according to statistics, the total energy consumption of buildings in the United States, about 30% of the energy consumption from the lighting field, while China's estimates also reached about 11% to 12%. Seen in this light, the energy saving potential of the lighting domain.

A Morimi semiconductor LED general lighting and power systems engineering and marketing director Laurent Jenck (Zheng Lekang) pointed out that the 100 W incandescent lamp of a typical case, of which about 95 W electrical energy is converted into heat, remaining only 5 W electrical energy into light. As a result, many countries in the world are beginning to phase out the general incandescent lamps, encourage the use of energy-saving lamps. Compared with incandescent lamps, compact fluorescent lamps (CFL) and linear fluorescent lamp (LFL) energy consumption of energy-saving lamps fell sharply (equivalent to only the incandescent lamp is about 1/5), but these traditional energy-saving lamp contains mercury toxic chemicals, have adverse effects on the environment. On the other hand, high brightness light-emitting diode (HB-LED) in recent years in the light output, energy efficiency (efficacy) comprehensive improvement and cost, combined with small, low voltage operation and environmental protection and many other advantages, is a revolution in lighting field.

LED lighting invasion in various fields, the application will be more popular today, less than 4 inches in screen size, such as mobile phone flash camera in mobile device, LED lighting large screen applications, and roadside and stadium, or solid-state lighting (SSL), accounted for almost 100% of the share. In addition, LED lighting is also moving into other areas. In automotive applications, LED lighting accounts for about 15% of the share. In the larger LCD display (LCD) backlight applications, although the cold cathode fluorescent lamp (CCFL) is still dominant, but the total penetration of LED lighting also reached about 20%, see figure 1. Especially in the highly anticipated large LCD TV backlight applications, according to Laurent Jenck pointed out that the LED backlight LCD TV is expected in the next 3 to 4 years, will occupy a share of up to 50%.

Figure 1:LED lighting penetration in a variety of applications. A Morimi semiconductor expertise and advantages in power management and high efficiency, so it can play its leading power in the power supply efficiency, provide a dedicated LED driver for portable, consumer, industrial and automotive markets, and solid-state lighting solutions meet or exceed the world standard, such as GreenPoint power supply as reference design?.

Comparison, LED lighting in lamps, lamp, street and into the proportion of area lighting, landscape lighting, task lights, commercial buildings and billboards lighting lighting circuit text field of general lighting is still low, the current is less than 2%, far lower than other types of lighting. However, LED lighting has the advantages of high energy efficiency, so that it has great potential in the general lighting market. For example, A Morimi semiconductor from the retail store to buy a halogen lamp (using 35 W light bulb) to re design, the original halogen lamp without electronic components, containing only the more than 1 heavy Hz transformer. The halogen lamp input power of 41.7 Vac under the condition of 120 W, at a distance of 0.5 meters to measure the brightness of 744 lumens. The lamp re design by using the LED module, the bottom of the lamp by A Morimi NCP1014 semiconductor self powered monolithic switching regulator, in the condition of 120 Vac input power is 10.9 W, the energy consumption is only equivalent to the halogen lamp of 1/4; at the same time, the LED lamp at the same distance under the condition of measuring the brightness of 795 lumens, better than halogen light, the 72.9 LM / w (lm/W) energy efficiency (efficacy) is several times of the halogen lamp (17.8 lm/W).

Of course, price is a restriction factor of LED lighting in the field of general lighting the rapid popularization. However, the Laurent Jenck quoted A Morimi semiconductor semiconductor development history pointed out that when the semiconductor technology has just come out, the cost is very high so that the limitation of application in the United States military application of cost sensitive, such as military satellite; but with more wide range of applications and application extension, semiconductor products finally entered the consumer market, every corner widely used in our daily life. Therefore, with the increase in the application, the price / cost of LED lighting will gradually tend to consumer applications. Laurent Jenck is expected, LED general lighting is expected to enter the mainstream family applications within 5 years.

Regulatory agencies around the world are also actively develop and publish the LED lighting energy efficiency standard. Such as the United States, "Energy Star" of the 1.1 edition of solid-state lighting specification in February 2009 to take effect. This specification applies to various energy efficiency requirements for different products, such as spotlights or outdoor lights, and includes the power factor requirements. For China, the China Institute of standardization, which is responsible for energy efficiency standards, is taking the lead in preparing for China's LED lighting efficiency standards in the coming year. To promote the development of LED lighting drive scheme of wide range, high efficiency and innovation

Because LED lighting application prospects, to promote its development, must choose the driving scheme suitable for LED lighting applications different. A Morimi as the world's leading semiconductor with high performance and high efficiency silicon solutions provider, to provide wide range, high efficiency and innovation and strong LED lighting solutions. Whether the battery powered applications, or directly by the application of AC or DC power supply line, A Morimi semiconductor energy efficient LED driver provide suitable solutions, such as inductance type and charge pump type LED driver, switching regulator and high integrated lighting management