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DOI: 10.14569/IJACSA.2021.0120244
PDF

An Efficient Color LED Driver based on Self-Configuration Current Mirror Circuit

Author 1: Shaheer Shaida Durrani
Author 2: Abu Zaharin Bin Ahmad
Author 3: Bakri Bin Hassan
Author 4: Atif Sardar Khan
Author 5: Asif Nawaz
Author 6: Naveed Jan
Author 7: Rehan Ali Khan
Author 8: Rohi Tariq
Author 9: Ahmed Ali Shah
Author 10: Tariq Bashir
Author 11: Zia Ullah Khan
Author 12: Sheeraz Ahmed

International Journal of Advanced Computer Science and Applications(IJACSA), Volume 12 Issue 2, 2021.

  • Abstract and Keywords
  • How to Cite this Article
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Abstract: The string channel of Color LED driver with precise current balancing is proposed. It is noted that to drive a multiple LEDs string is by using a proper current source, due to the level of the brightness LED depends on the quantity of the current flows. In the production of LEDs, the variation in the forward voltage for each LED has been found significantly high. This variation causes different levels of brightness in LEDs. Then, controlling load current of LED by using a resistor to limit the LED current flowing is considered by associated with the forward voltage, instantly. Current sources have been designed to become immune to the above problem since it regulates the current, and not the voltage which flows through the LEDs. Hence, constant current source is the essential requirement to drive the LEDs. Besides, it is complex for color LEDs, dependent on the number of control nodes and dimming configuration. To arrange an accurate load current for the different sets of string color LEDs, the efficient LED driver is required, in which the current sharing is complement to each LED strings. Therefore, this paper suggests a color LED driver with self-configuration of enhanced current mirrors in multiple LED strings. The load currents have been efficiently balanced among the identical loads and unequal loads. The comparable efficiency of the string color LEDs losses has been shown thoroughly.

Keywords: Color LED driver; current mirror circuit; super diode

Shaheer Shaida Durrani, Abu Zaharin Bin Ahmad, Bakri Bin Hassan, Atif Sardar Khan, Asif Nawaz, Naveed Jan, Rehan Ali Khan, Rohi Tariq, Ahmed Ali Shah, Tariq Bashir, Zia Ullah Khan and Sheeraz Ahmed, “An Efficient Color LED Driver based on Self-Configuration Current Mirror Circuit” International Journal of Advanced Computer Science and Applications(IJACSA), 12(2), 2021. http://dx.doi.org/10.14569/IJACSA.2021.0120244

@article{Durrani2021,
title = {An Efficient Color LED Driver based on Self-Configuration Current Mirror Circuit},
journal = {International Journal of Advanced Computer Science and Applications},
doi = {10.14569/IJACSA.2021.0120244},
url = {http://dx.doi.org/10.14569/IJACSA.2021.0120244},
year = {2021},
publisher = {The Science and Information Organization},
volume = {12},
number = {2},
author = {Shaheer Shaida Durrani and Abu Zaharin Bin Ahmad and Bakri Bin Hassan and Atif Sardar Khan and Asif Nawaz and Naveed Jan and Rehan Ali Khan and Rohi Tariq and Ahmed Ali Shah and Tariq Bashir and Zia Ullah Khan and Sheeraz Ahmed}
}



Copyright Statement: This is an open access article licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, even commercially as long as the original work is properly cited.

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