Direct battery-driven solar LED lighting using constant-power control

Bin-Juine Huang, Chun-Wei Chen, Po-Chien Hsu, Wei-Min Tseng, Min-Sheng Wu

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


A direct battery-driven LED lighting technique using constant-power control is proposed in the present study. A system dynamics model of LED luminaire was derived and used in the design of the feedback constant-power control system. The test result has shown that the power of 18. W and 100. W LED luminaires can be controlled accurately with error at 2-5%. A solar LED street lighting system using constant-power and dimming control was designed and built for field test in a remote area. The long-term performance was satisfactory and no any failure since the installation. Since no high-power capacitor is used in the present constant-power control circuit, a longer lifetime is expected. © 2012 Elsevier Ltd.
Original languageEnglish (US)
Pages (from-to)3250-3259
Number of pages10
JournalSolar Energy
Issue number11
StatePublished - Nov 2012
Externally publishedYes


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