Power flow analysis and critical design issues of retrofit Light-Emitting Diode (LED) light bulb
File(s)
Accepted version
Author(s)
Li, S
Chen, H
Tan, SC
Hui, SY
Waffenschmidt, E
Type
Journal Article
Abstract
For retrofit applications, some high-brightness light-emitting diode (LED) products have the same form factor restrictions as existing incandescent light bulbs. Such form factor constraints may restrict the design and optimal performance of the LED technology. In this paper, some critical design issues for commercial LED bulbs designed for replacing E27 incandescent lamps are quantitatively analyzed. The analysis involves power audits on such densely packed LED systems so that the amounts of power consumption in: 1) the LED wafer; 2) the phosphor coating; and 3) the lamp translucent cover are quantified. The outcomes of such audits enable R&D engineers to identify the critical areas that need further improvements in a compact LED bulb design. The strong dependence of the luminous output of the compact LED bulb on ambient temperature is also highlighted.
Date Issued
2014-07-14
Date Acceptance
2014-07-01
Citation
IEEE Transactions on Power Electronics, 2014, 30 (7), pp.3830-3840
ISSN
0885-8993
Publisher
IEEE
Start Page
3830
End Page
3840
Journal / Book Title
IEEE Transactions on Power Electronics
Volume
30
Issue
7
Copyright Statement
© 2014 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.
See http://www.ieee.org/publications standards/publications/rights/index.html for more information.
See http://www.ieee.org/publications standards/publications/rights/index.html for more information.
Subjects
Electrical & Electronic Engineering
Publication Status
Published