A Scalable <italic>N</italic>-Color LED Driver Using Single Inductor Multiple Current Output Topology

With the development of LED technology, the actual demand of the people for the smart home lighting, this paper designed a multiple lamps for indoor wireless remote control dimmable LED lighting systems. LED driver is using two levels of drive structure, and driver power supply adopts double-road current output, and the size of the output current of each constant current source is flexible to adjust by remote control. Wireless remote control part control multiple lamps by using 4 * 4 keyboard, which realizes intelligent management of LED interior lighting in the smart home.

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Design on LED Driver Based on LLC Resonant Topology

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.303-306.1702 ◽

2013 ◽

Vol 303-306 ◽

pp. 1702-1705

Author(s):

Jia Min Cui ◽

Xian Feng Yu ◽

Wei Jie Xu

Keyword(s):

Design Process ◽

Experimental Results ◽

Constant Current ◽

Resonant Converter ◽

Led Driver ◽

Current Output ◽

Design Considerations ◽

Llc Resonant Converter ◽

Converter Design

As for the DC/DC part in high-effiency LED driver with constant current output, this paper presents the circuit based on LLC resonant topology. The principle of the LLC resonant converter, design process, and the influence of different key parameters to its performance are also prensented. Design considerations and experimental results are presented for a 200W LED driver prototype which demonstrating good performance and the efficiency of the LLC resont converter can be reached above 95%.

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Design, Development and Practical Realization of a VLC Supportive Indoor Lighting System

Light & Engineering ◽

10.33383/2019-048 ◽

2020 ◽

pp. 87-97

Author(s):

Sourish Chatterjee ◽

Biswanath Roy

Keyword(s):

Data Communication ◽

Cost Effective ◽

Ambient Light ◽

Lighting System ◽

Design Development ◽

Led Driver ◽

Communication Performance ◽

Good Communication ◽

Simulink Model ◽

Light Interference

In an office space, an LED-based lighting system allows you to perform the function of a data transmitter. This article discusses the cost-effective design and development of a data-enabled LED driver that can transmit data along with its receiving part. In addition, this paper clearly outlines the application of the proposed VLC system in an office environment where ambient light interference is a severe issue of concern. The result shows satisfactory lighting characteristics in general for this area in terms of average horizontal illuminance and illuminance uniformity. At the same time, to evaluate real-time and static communication performance, Arduino interfaced MATLAB Simulink model is developed, which shows good communication performance in terms of BER (10–7) even in presence of ambient light noise with 6 dB signal to interference plus noise ratio. Our designed system is also flexible to work as a standalone lighting system, whenever data communication is not required.

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Comparison of Dc-Dc SEPIC, CUK and Flyback Converters Based LED Drivers

Light & Engineering ◽

10.33383/2018-70 ◽

2020 ◽

pp. 99-107

Author(s):

Erdal Sehirli

Keyword(s):

Integrated Circuit ◽

Closed Loop ◽

Input Voltage ◽

Open Loop ◽

Current Sensor ◽

Switching Frequency ◽

Led Driver ◽

Advantages And Disadvantages ◽

Led Drivers ◽

Conduction Mode

This paper presents the comparison of LED driver topologies that include SEPIC, CUK and FLYBACK DC-DC converters. Both topologies are designed for 8W power and operated in discontinuous conduction mode (DCM) with 88 kHz switching frequency. Furthermore, inductors of SEPIC and CUK converters are wounded as coupled. Applications are realized by using SG3524 integrated circuit for open loop and PIC16F877 microcontroller for closed loop. Besides, ACS712 current sensor used to limit maximum LED current for closed loop applications. Finally, SEPIC, CUK and FLYBACK DC-DC LED drivers are compared with respect to LED current, LED voltage, input voltage and current. Also, advantages and disadvantages of all topologies are concluded.

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