Title :
Equivalent Circuit Model of Light-Emitting-Diode for System Analyses of Lighting Drivers
Author :
Lin, Ray-Lee ; Chen, Yi-Fan
Author_Institution :
Nat. Cheng Kung Univ., Tainan, Taiwan
Abstract :
This paper presents the equivalent circuit models of the light-emitting-diode, including the piece-wise linear model, DC model and small-signal model. In order to characterize the equivalent circuit model of the LEDs, a piece-wise linear model is built by adopting the superposition concept of the multi-branch equivalent circuit model. Furthermore, in order to perform the DC and small-signal analysis of the LEDs, the equivalent DC and small-signal resistance will be derived from the piece-wise linear model.
Keywords :
driver circuits; equivalent circuits; light emitting diodes; piecewise linear techniques; semiconductor device models; DC model; LED; light-emitting-diode; lighting driver; multibranch equivalent circuit model; piece-wise linear model; small-signal analysis; small-signal resistance; system analysis; Circuit simulation; Cities and towns; Current measurement; Driver circuits; Equivalent circuits; Light emitting diodes; Linear approximation; Piecewise linear approximation; Piecewise linear techniques; Voltage;
Conference_Titel :
Industry Applications Society Annual Meeting, 2009. IAS 2009. IEEE
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4244-3475-6
Electronic_ISBN :
0197-2618
DOI :
10.1109/IAS.2009.5324876
