Title :
System Analysis of DCM Dual-Loop Controlled Light-Emitting-Diode Boost Driver
Author :
Lin, Ray-Lee ; Chen, Yi-Fan
Author_Institution :
Nat. Cheng Kung Univ., Tainan, Taiwan
Abstract :
This paper presents the system analysis of the discontinuous-conduction mode (DCM) dual-loop controlled light-emitting-diode (LED) boost driver. The equivalent circuit models of the LED boost drivers are constructed to derive the system transfer functions for predicting the system performance, including the loop gain, line regulation and load regulation. The corresponding Bode diagrams are plotted and compared with those of the SIMPLISreg simulations and measured results to validate the derived transfer functions.
Keywords :
Bode diagrams; driver circuits; equivalent circuits; light emitting diodes; power convertors; transfer functions; Bode diagram; LED; SIMPLIS simulator; discontinuous conduction mode; dual loop controlled light emitting diode boost driver; equivalent circuit; line regulation; load regulation; loop gain; transfer function; Circuit simulation; Control systems; Driver circuits; Equivalent circuits; Light emitting diodes; Lighting control; Performance gain; Predictive models; System performance; Transfer functions;
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.2009.5324878