Linear regulator based compact LED driver for DC distributed lighting system

2015 ◽  
Author(s):  
Srikanth Tunga ◽  
RakeshBabu Panguloori ◽  
PriyaRanjan Mishra
Keyword(s):  
Lighting System ◽  
Led Driver ◽  
Linear Regulator

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

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.

scholarly journals Hand Gesture Interface for Smart Operation Theatre Lighting

2018 ◽  
Vol 7 (2.25) ◽  
pp. 20
Author(s):  
Jessita Joseph ◽  
Divya D S
Keyword(s):  
Light Intensity ◽  
Operating Theatre ◽  
Hand Movements ◽  
Hand Gesture ◽  
Critical Component ◽  
Receiver Side ◽  
Lighting System ◽  
Led Driver ◽  
Operation Theatre ◽  
Hand Signal

Operation theatre lighting system is a critical component in the operation theatre. Focusing the light to the area of surgery and varying the light intensity is manually done in currently available systems. Disruption of surgeon’s attention and possibility of infection due to non sterilized hands is a major setback of the manual controlling method. This usually requires assistants to adjust the position and intensity of the light system by commands from the surgeon. So, designing an intelligent lighting system for operating theatre which can maintain the intensity values to the required level without shadow effect to the operation area is an important requirement. Proposed system makes use of accelerators in the gloves worn by surgeon so as to track hand movements. Pre defined hand movements can be configured to move the lighting system up, down, left or right. Accelerator input is interpreted for its corresponding movement by controller at transmitter side and it is wirelessly given to the receiver side using an nRF module. At the receiver side the incoming command from the nRF is taken and suitable response generated at the motor driver by the controller to move the lighting device. In the same way predefined hand signal can be used to vary the intensity of the light by using microcontroller to drive an LED driver.  

A Single-Stage LED Driver Based on BCM Boost Circuit and $LLC$ Converter for Street Lighting System

2015 ◽  
Vol 62 (9) ◽  
pp. 5446-5457 ◽  
Author(s):  
Yijie Wang ◽  
Yueshi Guan ◽  
Kailin Ren ◽  
Wei Wang ◽  
Dianguo Xu
Keyword(s):  
Single Stage ◽  
Lighting System ◽  
Led Driver ◽  
Street Lighting

scholarly journals Dimmable LED Driver For DC Distributed Lighting System

2020 ◽  
Author(s):  
Mohammad Meraj ◽  
Syed Rahman ◽  
Atif Iqbal ◽  
Lazhar Ben Brahim
Keyword(s):  
Distribution Systems ◽  
High Efficiency ◽  
High Reliability ◽  
Low Cost ◽  
Road Transport ◽  
Maximum Efficiency ◽  
Lighting System ◽  
Led Driver ◽  
Lighting Systems ◽  
Industrial Lighting

This abstract proposes a high brightness, high efficiency, dimmable LED driver based on linear current regulator technology for DC grid distribution systems. The proposed driver has excellent characteristics like the highest lumen per watt, long lifetime, high reliability, compact, low cost, both environmental and user-friendly which makes it suitable for lighting applications. Steady state and small-signal models of the proposed driver are performed which help in minimizing ground current and accurate compensator design, respectively. These two modeling approaches result in the optimization of both the footprint and cost of the driver. The performance of the proposed experimental prototype of the 20W driver is developed to validate the performance at different dimming levels and achieves maximum efficiency of 97%. The applications of the proposed converter are: dimmable home lighting system, advertisement boards and hoardings, industrial lighting systems, road transport indication lamps, indoor and outdoor stadium lighting, automatic street lighting, decorative systems, health appliances and auditoriums and many more.

scholarly journals High Brightness and High Voltage Dimmable LED Driver for Advanced Lighting System

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 95643-95652 ◽  
Author(s):  
Mohammad Meraj ◽  
Syed Rahman ◽  
Atif Iqbal ◽  
Lazhar Ben-Brahim
Keyword(s):  
High Voltage ◽  
Lighting System ◽  
Led Driver ◽  
High Brightness

Zigbee Based Energy Efficient LED Lighting System

2017 ◽  
Vol 14 (1) ◽  
pp. 435-440
Author(s):  
R Thenmozhi ◽  
C Sharmeela ◽  
P Natarajan ◽  
R Velraj
Keyword(s):  
Lighting System ◽  
Led Driver ◽  
High Brightness ◽  
Led Lighting ◽  
Controlling System ◽  
Object Movement ◽  
Communication Capability ◽  
And Control ◽  
Driving Circuit ◽  
Opening Up

In recent years high brightness LED lamps are opening up new opportunities of cost and energy saving towards variety of lighting applications. However they also require LED driver and control circuit compare to gas filled lamps when operating at input AC mains. Thus an efficient driving circuit is essential for its optimal performance. In this paper a remote monitoring and controlling system based wireless sensor network is implemented for LED lighting according to the user’s state, which basically controls illumination intensity of a lighting device according to object movement and brightness of surrounding. Then this system can extend communication capability to the existing street lighting system through the ZigBee and this idea will be very useful for subway, industries and household application to effectively reduce the power consumption.

Light Dramaturgy as an Element of an Integrated Approach to the Creation of Museum Expositions and Exhibition Projects

2019 ◽  
pp. 108-114
Author(s):  
Nicolay R. Vorobyov
Keyword(s):  
Final Stage ◽  
Historical Development ◽  
Integrated Approach ◽  
Lighting Design ◽  
Lighting System ◽  
Scientific Concepts ◽  
Hands On ◽  
Artistic Styles ◽  
The Creation

Architectural and artistic construction of museum is one of the most complex genres in environment development and design, with its inherent qualities, means of expressiveness, principles of environment and image development, scientific concepts, in the context of historical development, artistic styles and trends. The author of the article considers the artistic lighting design in isolation from the integral dramaturgy of the project to be deeply flawed, and the setting of accent lighting at the final stage Ц to be simple, but not outstanding. Based on extensive hands-on experience in the construction of museum expositions, the author of the article reveals some peculiarities, especially significant to the participants of the lighting system setting for museums and other cultural facilities.

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