TY - JOUR
T1 - Mitigating energy wastage of light-emitting diodes using discretised multilevel pulsation
AU - Tan, S. C.
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2009
Y1 - 2009
N2 - There is a recent trend and growing popularity of using the technique of light pulsation for achieving the dimming control of light-emitting diodes. However, it is found that such a dimming control technique can result in a significant power loss in terms of luminous efficacy. This contradicts the original motive of energy saving through illumination dimming. Total energy consumed for lighting is an overwhelming 8% of depleting energy resources. A potential loss of 2% or more of these resources could go unnoticed owing to poor handling of dimming technology. It is demonstrated that, driving the LEDs with discretised multilevel pulsation, can achieve a quasi-optimally-efficient state of dimming control with a saving of up to 26.7% of the luminous efficacy. © The Institution of Engineering and Technology 2009.
AB - There is a recent trend and growing popularity of using the technique of light pulsation for achieving the dimming control of light-emitting diodes. However, it is found that such a dimming control technique can result in a significant power loss in terms of luminous efficacy. This contradicts the original motive of energy saving through illumination dimming. Total energy consumed for lighting is an overwhelming 8% of depleting energy resources. A potential loss of 2% or more of these resources could go unnoticed owing to poor handling of dimming technology. It is demonstrated that, driving the LEDs with discretised multilevel pulsation, can achieve a quasi-optimally-efficient state of dimming control with a saving of up to 26.7% of the luminous efficacy. © The Institution of Engineering and Technology 2009.
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U2 - 10.1049/el.2009.0732
DO - 10.1049/el.2009.0732
M3 - RGC 21 - Publication in refereed journal
SN - 0013-5194
VL - 45
SP - 522
EP - 524
JO - Electronics Letters
JF - Electronics Letters
IS - 10
ER -
