Abstract
This paper presents the design and modeling of a two-phase resonant converter that drives a LED lamp with a high-frequency pulsed current free of instabilities and flicker effect, fulfilling the recommendations of the IEEE PAR 1789-2015, so that it enables visible light-based communication at a 10 kB/s bit rate. The dynamic study of the converter takes into consideration the effect of the reflected impedance of the output filter on the AC side. In order to evaluate the dynamic response of the converter, a Spice model is defined. A 120 W prototype intended for street lighting applications has been built to validate the analysis and modeling.
Highlights
Solid state lighting (SSL) is the most recent revolution in the lighting field [1], which paves the way to developing new capabilities such as a precise wide-range dimming and visible light communication (VLC), compatible with the illumination service
This paper focuses on the analysis of the dynamic response of a phase-controlled series-parallel resonant converter, designed as a current source, for LED lamp driver applications
The small-signal model obtained from the reduced envelope model of the two-phase phase-shift-modulated LCs Cp resonant converter, proposed as a driver for high-power LED lamps, has phase-shift-modulated LCsCp resonant converter, proposed as a driver for high-power LED lamps, been validated with simulation and experimentally up to tens of kHz frequency
Summary
Solid state lighting (SSL) is the most recent revolution in the lighting field [1], which paves the way to developing new capabilities such as a precise wide-range dimming and visible light communication (VLC), compatible with the illumination service. LEDs’ operation at their nominal current prevents the degradation of light quality parameters [2]. For this reason, dimming or turning on/off the nominal current level through the LEDs, according to a PWM pattern, modifying the average current, is preferred over the current amplitude modulation. This paper focuses on the analysis of the dynamic response of a phase-controlled series-parallel resonant converter, designed as a current source, for LED lamp driver applications. Different models have been proposed to study the dynamic response [7] of resonant converters. The experimental validation of the obtained from the envelope model of the converter. The experimental validation of the model is model is presented, finalizing with the discussion of the results.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
