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DOI: 10.14569/IJACSA.2020.0110943
PDF

Self-Configurable Current-Mirror Technique for Parallel RGB Light-Emitting Diodes (LEDs) Strings

Author 1: Shaheer Shaida Durrani
Author 2: Asif Nawaz
Author 3: Muhamamd Shahzad
Author 4: Rehan Ali Khan
Author 5: Abu Zaharin Ahmad
Author 6: Ahmed Ali Shah
Author 7: Sheeraz Ahmed
Author 8: Zeeshan Najam

International Journal of Advanced Computer Science and Applications(IJACSA), Volume 11 Issue 9, 2020.

  • Abstract and Keywords
  • How to Cite this Article
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Abstract: Traditional current-mirror circuits require buck converter to deal with one fixed current load. This paper deals with improved self-adjustable current-mirror methods that can address different LED loads under different conditions with the help of one buck converter. The operating principle revolves around a dynamic and self-configurable combinational circuit of transistor and op-amp based current balancing circuit, along with their op-amp based dimming circuits. The proposed circuit guarantees uniformity in the outputs of the circuit. This scheme of current-balancing circuits omitted the need for separate power supply to control the load currents through different kinds of LEDs, i.e. RGB LEDs. The proposed methods are identical and modular, which can be scaled to any number of parallel current sources. The principle methodology has been successfully tested in Simulink environment to verify the current balancing of parallel LED strings.

Keywords: Current-balancing; LED driver; current mirror

Shaheer Shaida Durrani, Asif Nawaz, Muhamamd Shahzad, Rehan Ali Khan, Abu Zaharin Ahmad, Ahmed Ali Shah, Sheeraz Ahmed and Zeeshan Najam, “Self-Configurable Current-Mirror Technique for Parallel RGB Light-Emitting Diodes (LEDs) Strings” International Journal of Advanced Computer Science and Applications(IJACSA), 11(9), 2020. http://dx.doi.org/10.14569/IJACSA.2020.0110943

@article{Durrani2020,
title = {Self-Configurable Current-Mirror Technique for Parallel RGB Light-Emitting Diodes (LEDs) Strings},
journal = {International Journal of Advanced Computer Science and Applications},
doi = {10.14569/IJACSA.2020.0110943},
url = {http://dx.doi.org/10.14569/IJACSA.2020.0110943},
year = {2020},
publisher = {The Science and Information Organization},
volume = {11},
number = {9},
author = {Shaheer Shaida Durrani and Asif Nawaz and Muhamamd Shahzad and Rehan Ali Khan and Abu Zaharin Ahmad and Ahmed Ali Shah and Sheeraz Ahmed and Zeeshan Najam}
}



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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