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  1. Journal of The Institution of Engineers (India): Series B
  2. Journal of The Institution of Engineers (India): Series B : Volume 98
  3. Journal of The Institution of Engineers (India): Series B : Volume 98, Issue 5, October 2017
  4. Development and Performance Assessment of White LED Dimmer
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Journal of The Institution of Engineers (India): Series B : Volume 98
Journal of The Institution of Engineers (India): Series B : Volume 98, Issue 6, December 2017
Journal of The Institution of Engineers (India): Series B : Volume 98, Issue 5, October 2017
Circular Microstrip Antenna with Fractal Slots for Multiband Applications
Current Controller for Multi-level Front-end Converter and Its Digital Implementation Considerations on Three-level Flying Capacitor Topology
Development and Performance Assessment of White LED Dimmer
GPU Based N-Gram String Matching Algorithm with Score Table Approach for String Searching in Many Documents
Improved Performance of Radial Elliptical Low-Pass Filter for ISM Band
Modelling and Simulation of Single-Phase Series Active Compensator for Power Quality Improvement
Multiobjective Economic Load Dispatch in 3-D Space by Genetic Algorithm
Two Level Versus Matrix Converters Performance in Wind Energy Conversion Systems Employing DFIG
A Review Analysis of Inverter Topologies for Solar PV Applications Focused on Power Quality
Multi Dimensional Honey Bee Foraging Algorithm Based on Optimal Energy Consumption
Journal of The Institution of Engineers (India): Series B : Volume 98, Issue 4, August 2017
Journal of The Institution of Engineers (India): Series B : Volume 98, Issue 3, June 2017
Journal of The Institution of Engineers (India): Series B : Volume 98, Issue 2, April 2017
Journal of The Institution of Engineers (India): Series B : Volume 97
Journal of The Institution of Engineers (India): Series B : Volume 96
Journal of The Institution of Engineers (India): Series B : Volume 95
Journal of The Institution of Engineers (India): Series B : Volume 94
Journal of The Institution of Engineers (India): Series B : Volume 93

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Development and Performance Assessment of White LED Dimmer

Content Provider Springer Nature Link
Author Maiti, Pradip Kr. Roy, Biswanath
Copyright Year 2017
Abstract A microcontroller based electronic dimmer is developed using pulse width modulation technique. This dimmer is controllable by infra-red remote within a distance of 4 m and can be electrically connected between LED module and its driver. The performance of a developed LED dimmer is assessed on basis of variation of the photometric parameters of commercially available warm white and cool white LED luminaire used in indoor lighting applications. Four equally spaced dimming levels are considered to measure luminous efficacy, spectral power distribution, CIE 1931 chromaticity coordinates, CIE 1976 CIELUV color difference, correlated color temperature, general color rendering index and one specific color rendering index for saturated red color sample. Variations of above parameters are found out with reference to the values measured at rated voltage without the developed dimmer. Analysis of experimentally measured data shows that the developed LED dimmer is capable to vary light output of the WLED luminaire within a range of 25–100% without appreciable variation of its photometric and color parameters. The only exception is observed for the luminous efficacy parameter where it shows about 17 and 14.7% reduction for warm white and cool white LED luminaire at 25% dimming level.
Starting Page 461
Ending Page 466
Page Count 6
File Format PDF
ISSN 22502106
Journal Journal of The Institution of Engineers (India): Series B
Volume Number 98
Issue Number 5
e-ISSN 22502114
Language English
Publisher Springer India
Publisher Date 2017-03-30
Publisher Place New Delhi
Access Restriction One Nation One Subscription (ONOS)
Subject Keyword LED dimmer Correlated colour temperature Pulse width modulation Communications Engineering, Networks CRI Color difference
Content Type Text
Resource Type Article
Subject Computer Science Electrical and Electronic Engineering
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