نتایج جستجو برای: led driver

تعداد نتایج: 249246  

Journal: :Microelectronics Reliability 2015
Carlo De Santi Matteo Dal Lago Matteo Buffolo D. Monti Matteo Meneghini Gaudenzio Meneghesso Enrico Zanoni

a r t i c l e i n f o Keywords: Reliability Retrofit LED lamps Diffusive bulb Phosphors LED driver This paper describes one of the first studies of the degradation of retrofit light bulbs based on white GaN light emitting diodes. The results indicate that the lifetime of LED lamps depends mostly on the stability of the driver and optical elements, rather than on the degradation of the LED chips...

2008
Anna McDowell Dorothy Begg Jennie Connor John Broughton

Despite recent reductions in motor vehicle injury rates in New Zealand, the rates for young drivers and especially young Māori drivers remain disproportionately high. This is commonly associated with driver inexperience and led to the development of road safety initiatives such as graduated driver licensing to increase beginner driver experience in low risk situations. There is anecdotal eviden...

Journal: :IEEE Trans. Industrial Electronics 2017
Yijie Wang José Marcos Alonso Alvarez Xinbo Ruan

L IGHTING ACCOUNTS FOR ABOUT 15 PERCENT OF THE WORLD’S TOTAL ELECTRICITY CONSUMPTION, therefore a reduction of energy consumed for lighting will give a significant contribution to better utilization of the natural resources and a reduction of CO2 emissions. Recently, Light Emitting Diodes (LED) have been introduced in street lighting, building lighting, backlighting and automobiles lighting, ow...

2011
Alex D. Hwang Eli Peli

In this paper, we would like to introduce a second generation of headlight glare simulator to be used with a driving simulator that significantly improves spatial and brightness accuracy of previously developed prototype headlight glare simulator (Fullerton & Peli, 2009). The system combined a programmable off–the-shelf LED display board and a beamsplitter so that the LED lights, representing h...

2015
M. Sangeetha

In recent years preventing accidents under drowsiness state has become a major focus for active safety driving. To reduce the accidents rate, it is needed to provide an efficient safety measure. Literature says that, the drowsiness condition of driver is best monitored by using an eye blink sensor (or) fabric electrode (or) ECG Sensor. But by monitoring the drowsiness condition alone, the accid...

The Driver Behaviour Questionnaire (DBQ) is widely used around the world to investigate driving behaviours. However, it has several different versions extracted from the 50-items Manchester driver behaviour questionnaire for variety of societies. This study aims to calibrate the DBQ for the Iranian driver population and explore their aberrant driver behaviour. In total, 524 participants (325 me...

Journal: :Microprocessors and Microsystems 2005
W. Kurdthongmee

In this work, the design and analysis of new Level Shifter with Gate Driver for Li-Ion battery charger is proposed for high speed and low area in 180nm CMOS technology. The new proposed level shifter is used to raise the voltage level and significantly reduces transfer delay 1.3ns (transfer delay of conventional level shifter) to 0.15ns with the same input signal. Also, the level shifter with g...

2018
Magali Champion Kevin Brennan Tom Croonenborghs Andrew J. Gentles Nathalie Pochet Olivier Gevaert

The availability of increasing volumes of multi-omics profiles across many cancers promises to improve our understanding of the regulatory mechanisms underlying cancer. The main challenge is to integrate these multiple levels of omics profiles and especially to analyze them across many cancers. Here we present AMARETTO, an algorithm that addresses both challenges in three steps. First, AMARETTO...

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