Commercially feasible low cost led driver circuit (15 watt)
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This document summarizes a student project to design a commercially feasible LED driver circuit that uses less than 15 watts of power. The project aims to create a circuit with 90% efficiency, 0.9 power factor, and the lowest possible cost. It will explore buck converter and capacitive power supply topologies, with buck converter selected for its higher efficiency and reliability for low voltages. The team will use a VIPer22A IC to control the switching frequency of the buck converter. Their work aligns with UN Sustainable Development Goal 9 of promoting sustainable industrialization through innovative research.
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Commercially feasible low cost led driver circuit (15 watt).1
This report represents a new locally producible commercially feasible LED driver circuit which has low components import and production cost, and high market value and a relatively long life. This LED driver is also able to provide as much light and efficiency as the models available at market right now. The main task is to design the device for mass production. So, the team designed the whole device and other parameters. This paper presents the method, costing and working principle of the device.
Commercially feasible low cost LED driver circuit (15 watt)
This report represents a new locally producible commercially feasible LED driver circuit which has low components import and production cost, and high market value and a relatively long life. This LED driver is also able to provide as much light and efficiency as the models available at market right now. The main task is to design the device for mass production. So, the team designed the whole device and other parameters. This paper presents the method, costing and working principle of the device.
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Commercially feasible low cost led driver circuit (15 watt)
Commercially feasible low cost led driver circuit (15 watt)
Commercially feasible low cost led driver circuit (15 watt)
Commercially feasible low cost led driver circuit (15 watt)
Commercially feasible low cost led driver circuit (15 watt)
Commercially feasible low cost led driver circuit (15 watt)
Commercially feasible low cost led driver circuit (15 watt).1
Commercially feasible low cost led driver circuit (15 watt).1
Commercially feasible low cost LED driver circuit (15 watt)
Commercially feasible low cost LED driver circuit (15 watt)
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Commercially feasible low cost led driver circuit (15 watt)
- 1. Title of the Project Commercially Feasible LED Driver Circuit (<15 Watt) Name ID Md. Ragib Noor (Chair*) 021 151 093 Tofael Ahmmed (Recorder*) 021 151 103 Md. Tawhid Hasan (Member) 021 151 010 Md. Mohiuddin Parvez (Member) 021 151 097 Group Members:
- 2. Introduction LED (Light emitting diode) lightings are gaining more and more attention in the household and industrial uses. It is becoming more popular because it has a long life and it does not have any mercury poison effect compared to the conventional fluorescent lamps.
- 3. Motivation & problem statement • All parts have to be imported • Government is losing money • Increasing efficiency • Increase operating lifetime • Reducing power loss
- 4. Aim of the project Purpose a model with • 90% efficiency • 0.9 power factor • Lowest possible costing • Increase sustainability • Reducing power losses
- 5. Led driver • Led bulbs require good controlling of voltage and current • Led drivers regulates the power flow among the led panel • The power level of the LED is maintained constant by the LED driver
- 6. Literature Review 1. High-Efficiency Dimmable LED Driver 2. LED driver circuit with PWM output 3. Useful Life of an LED Driver 4. Power-efficient LED-current sensing circuit
- 7. Major Topologies • Capacitive power supply • Fly back • Buck
- 8. Capacitive Power Supply Advantages: • Low cost Disadvantages: • Affects power factor • Only for low power devices • No electric isolation
- 9. Fly-back Converter Advantages: • Low cost • Fast transient response • Low parts count Disadvantages: • Low efficiency • High heat dissipate • Pf low
- 10. Buck Converter Advantages: • 1. its step downs the voltage easily • 2. Its is more reliable. • 3. It can maintain higher power factor and higher efficiency. Disadvantages: • Ripple voltage high, • peak current also high.
- 11. Working principle • Supply 220 Volt AC • Convert AC-to-DC using rectifier • Step down voltage using buck converter • An IC (VIPer22A) controls the converter’s switching frequency
- 12. VIPer22A
- 13. Method • Identifying the problem • Understanding the problem • Limitations • Design Specifications • Establishment of design strategy • Appropriate Approach • Buck converter topology is most efficient and reliable for low voltage applications.
- 14. Method (Cont.) •Understanding basic laws •Understanding VIPer22A •Setting up preliminary circuit •Trial and Error check •Performance Test
- 16. Sustainable Development Goals Our Project: ● Collaborating with industry ● Innovative project Goal 9 Targets: • Promote sustainable industrialization • Enhance scientific research • Upgrade the technological capabilities of industrial sectors
- 17. PO Mapping Engineering Knowledge Applied formula Problem analysis Analyzed market, and different aspects Design/development of solutions Develop the existing models Investigation Instigating the problem Modern tool usage Simulation software and modern measurement equipment The engineer and society contextual knowledge for the benefit of the people of our society
- 18. PO Mapping Environment and sustainability Safety for environment Ethics Following code of conduct Individual work and teamwork Divided the tasks individually and merging the tasks as a team Communication Report and presentation Project management and finance Managing the project and finance Life-long learning Future broadest the context of the project
- 19. Gantt chart
- 20. Future outcome of led driver • Much higher levels of efficiency will become the norm • More accurate power monitoring • Better performance • Reducing the chip size
- 21. Limitation • Only for low power
- 22. Conclusion