led light source is often in series or parallel application to expand the lamp brightness, the led light source has a certain discrete, so that multiple serial applications to be more reasonable than the parallel applications, led light source can be reduced to the consistency requirements. with a dc / dc-buck buck do constant current source, multiple led light sources in series after the voltage can not exceed the total required dc / dc-buck the input voltage, if low-2v is the best, this time constant source efficiency can be greater than 90%. this new generation of dc / dc-buck constant current source ic will have some of the key indicators of the quality improvement, vin = 5-70v, or even vin = 5-100v, so the chip can achieve the basic conditions for automotive applications, the output voltage to meet the sing of led light sources close to the requirements of 20-30.
los angeles neon signsas a global healthcare, lifestyle and lighting, a leader in the field, philips based on customer insights and the "sense and simplicity" brand promise, the technologies and design into a people-centered solutions. headquartered in the netherlands, philips more than 60 counies around the world 116, 000 employees, its 2009 sales of 230 million euros, and in cardiac care, acute care and home healthcare, energy efficient lighting solutions and new lighting applications, as well as for personal comfort, quality of life in flat tv, male shaving and grooming, portable entertainment and oral healthcare products in areas with song leadership position.major steps in the production of oled device oled device fabrication, and sampling procedure qc.
neon signs wholesaleclearline, citysoul other road lighting has become a pedesian and the driver of the security barrier. improve the quality of the philips intelligent occuplus office multifunction dimming conol system, set the human body sensors, daylight sensors, automatic dimming function as one. for commercial lighting combines philips ot led lighting lamps and downlights feature a small projection, lighting for the store for easy dressing. philips is also on display at the exhibition for the hotel lighting led lights cup hyun, its design .
business signs
