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PWM Strategies in 32-Bit Microcontroller for Interior White LED Down Panel
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 58 - Number 22 |
| Year of Publication: 2012 |
| Authors: Ramandeep Singh, Ankur Bhardwaj, Yogesh Chauhan, Rachit Jain |
10.5120/9431-3827
|
Ramandeep Singh, Ankur Bhardwaj, Yogesh Chauhan, Rachit Jain . PWM Strategies in 32-Bit Microcontroller for Interior White LED Down Panel. International Journal of Computer Applications. 58, 22 ( November 2012), 25-32. DOI=10.5120/9431-3827
Abstract
This paper considers the Pulse Width Modulation (PWM), the internal module of ARM7 based microcontroller i. e. LPC2148 designed by NXP (founded by Philips), to study the illumination of a White LED down panel. This paper also shows the effect of PWM implementation on the White LED down panel using the internal module and the general purpose input output (GPIO) pins of LPC2148 microcontroller and compares both PWM implementations on the White LED down panel. They have discussed the effects of PWM waveform controlling the White LED down panel using different intermediate modules like without any LED driver, BJT transistors, relays and current driver IC (ULN2003) connected between the LPC2148 microcontroller and the White LED down panel. The comparison between the different intermediate modules that considered, are analyzed their influences on the White LED down panel.
References
- Chapter 16: PWM, LPC214X user manual by NXP (founded by Philips).
- Chapter 8: GPIO, user manual by NXP (founded by Philips).
- A. B. Sebitosi and P. Pillay"White LEDs for rural lighting"
- Narendra B Soni,member IEEE and P. Devendra"The transition to LED illumination: A case study on energy conservation"
- Matching drivers to LED
- Controlling LEDs
- The fundamentals of LED: What consumers need to know
- Energy efficient lighting lifecycle- White paper
- Yuchen Li and Shunong Zhang,Rui Kang "Return on investment of a LED lighting system"
- Hu Jie, Pan Jing, WU Wu-chen, HOU Li-gang "An Universal Design of Low-Power Processor Based on LED Lighting Control System by Using Solar Cells"
- Youjin Kim, Insu Kim, Tae-gyu Kang, Seong-hee Park" Analysis of IP-based Control Networks for LED Lighting Fixture Communication"
- Li,Minglei Chen, Guiying Shang, xiaodong Mao, huabin "Design of LCD Display System for Handheld Devices Based on Linux"
- Jie Zhang, Hwa Jong Kim " Design of smart LED lighting switch with learning user's light controlling pattern"
- Dingyuan Wang, Haifeng Jiang "Dynamic Dimming Control Method Research on Tunnel LED Lighting based on LED Controllability"
- Zhu Zhao-you,Dai Sheng-hui "Embedded LED Lighting Control System Research and Implementation"
- He Yi, Li Changbin, Wu Aiguo, Feng Shouzhong "LED Lighting Control System in Tunnel Based on Intelligent Illumination curve"
- Hui Ren?Lifei Yang?Yanzhe Li?Huiqin Wang "Research and Implementation of the Portable LED Stage Lighting Control System"
- Mohd Rozaini Abd Rahim, Rozeha A. Rashid, Nur Hija Mahalin, Esther Cheng "The Development of Computer Controlled Multicolor Illumination Network Using RGB based Light Emitting Diodes"
- Comparison between LED lights vs. Incandescent light bulbs vs. CFLs, http://www. thelightauthority. com
- Understanding the different types of light bulbs, http://www. elementalled. com
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