LED home lighting can be divided into two levels, one is to replace the traditional 40W/60W incandescent/fluorescent light bulbs. In this regard, consumers consider the demand mainly based on price and energy-saving effect; on the other hand is a new design LED lamps, such as living room patio lights, table lamps, etc., this part emphasizes intelligent regulation and adjustment of color temperature.
In response to the price and energy-saving requirements emphasized by the replacement light source 40W/60W bulb series, LED power driver IC manufacturers are meeting customer needs through a variety of ways. Richtek Liao Guangbin pointed out that high efficiency can greatly improve the energy-saving effect of LED bulbs and save electricity costs. In terms of LED bulb system cost analysis, the improvement of power efficiency can save expenditures on heat dissipation costs and greatly reduce system costs.
Secondly, the simplification of peripheral circuit components can also save the cost of the power module, reduce the area of the power module to increase the design flexibility of the LED light source configuration and heat sink configuration.
Focus on intelligent control functions
In the dimming and intelligent control of the new design of LED lamps, Liao Guangbin pointed out that domestic bulbs in Europe and the United States need to match the dimming of existing wall-mounted rotary knobs. This needs to consider the application line to the existing system. compatibility.
According to Yu Zhongwei, director of lighting products of Juji Technology, Juji currently has a variety of drive product lines such as AC to DC and DC to DC in LED lighting. The technology focuses on high conversion efficiency, high power factor, safety and compatibility, adjustable support Light and so on. In terms of dimming, he said that the application of dimming technology can enhance the competitiveness of products, so accumulation is actively developing dimming functions. In addition to providing related products in PWM and TRIAC dimming, accumulation is also observing digital addressing The development of DALI (Digital Address Lighting Interface).
DALI is a new generation of light control interface standard. Through this standard interface, the lighting system in the building can be easily integrated. Users can edit the scene and adjust the illumination through the DALI integrated interface, which can easily achieve the requirements of intelligent light control in smart buildings. . In addition, Yu Zhongwei pointed out that the driver IC will effectively reduce the BOM cost for customers through more functions (such as EMI protection integration).