What does the cut in voltage of an LED mean?
Answers from top 8 papers
More filters
| Papers (8) | Insight |
|---|---|
32 Citations | The large forward voltage observed from the TJ LED should be attributed to the large TJ resistance. |
6 Citations | Alternatively, the voltage measured across an LED as it emits light under power can also be related to the LED bandgap energy, providing a somewhat more accurate estimate of the bandgap energy than that obtained from the LED detector mode. |
35 Citations | In addition, it enables operation with LED lamps of a wide voltage range, while simultaneously achieving small dead-angles. |
25 Citations | Our investigations show that the initial changes in capacitance and voltage can be attributed to changes in the p-side and at the p-contact of the LED, which can be explained by an activation of Mg dopants. |
11 Oct 2014 7 Citations | Results of operating junction temperature measurements of a LED street light indicate that inherent forward voltage dependency on junction temperature of LEDs can be applied to measure junction temperature of LEDs in a LED based luminaire. |
14 Apr 2013 | For the high-voltage LED system, this relationship is a required condition for the accurate system reliability prediction. |
45 Citations | Moreover the results show a large variety in light intensity variations when different LED lamps are subjected to the same voltage fluctuations. |
33 Citations | High-voltage operation also facilitates the use of simple PFC preregulators such as boost or SEPIC converters as single-stage LED drivers. |
Related Questions
Why is led lights is most used in energy conservation?5 answersLED lights are widely used in energy conservation due to their efficiency and cost-effectiveness. Compared to traditional lighting options like fluorescent or incandescent bulbs, LED lights consume less power, resulting in reduced electricity costs. Studies show that replacing conventional lights with LED lights can lead to significant energy savings, with some cases reporting a decrease in electrical consumption by almost 15% annually. Additionally, LED lights contribute to a better quality of lighting while consuming less power, making them a preferred choice for energy conservation efforts. Furthermore, LED lighting is not only beneficial for individual energy conservation but also plays a role in managing overall electricity demand, reducing peak ripples in demand curves and correlating supply and demand more efficiently.
What is the relationship between ZGV and cut-off frequency?4 answersThe relationship between ZGV (Z-mode signal) and cut-off frequency is that the Z-mode signal is strongest at frequencies just below the local plasma frequency (f_p) at relatively low f_p values. As f_p increases, the Z-mode signals become strongest at frequencies just above the cut-off frequency (f_Z).
Does this article talk about grid cutoff?3 answersThe article "Dynamic power cutoff technique (DPCT)" by Yu and Bushnell analyzes the effect of DPCT on the power grid and its potential power savings. Experimental results show that DPCT reduces the maximal voltage drop on the power grid by up to 49%. The article "The power grid is changing" by Top et al. discusses the need for adapting the power grid to new types of generation and increasing interconnections. It suggests layered system controls as a potential solution to make the grid more efficient and resilient. The articles by Christensen et al. and Bull et al. discuss the cutoff characteristics of rotating grids and the need to position the focal spot of the x-ray tube on the convergent line of the grid to avoid cutoff from focus-grid distance decentering. The article by Shea et al. calculates vertical cutoff rigidities for a world grid and discusses their usefulness in analyzing cosmic-radiation intensity data.
What is the best cut off score for the test?3 answersThe best cut-off score for the test varies depending on the specific study and its objectives. In the first study, the cut-off scores calculated using different methods ranged from 62% to 68%. In the second and third studies, a cut-off score of eight was recommended as a reasonable approximation for predicting alcohol-related harm. The fourth study focused on a different test and found that a cut-off score of 60 repetitions in 2 minutes was indicative of low cardiopulmonary endurance in hypertensive elderly individuals. The fifth study did not provide specific information about the best cut-off score for the admissions test. Therefore, the best cut-off score for a test depends on the specific context and objectives of the study.
What is the voltage for LED bulb?9 answers
What is the voltage of LED TV?9 answers