Multi-channel LED driver based on switched-controlled capacitor with constant frequency control
Sign Up to like & getrecommendations! Published in 2018 at "Iet Power Electronics"
DOI: 10.1049/iet-pel.2018.5008
Abstract: Current sharing among light-emitting diode (LED) strings is significant for reliability and long life. The capacitive balancing was widely used with low losses and small volume. However, the capacitive balancing scheme adopting the impedance matching… read more here.
Keywords: controlled capacitor; led driver; power; frequency control ... See more keywords
Modified zero-voltage-switching single-stage LED driver based on Class E converter with constant frequency control method
Sign Up to like & getrecommendations! Published in 2018 at "Iet Power Electronics"
DOI: 10.1049/iet-pel.2018.5155
Abstract: This study presents an integrated-stage AC-DC lighting-emitting diode (LED) driver based on flyback and Class-E converter with high power factor (PF) with a wide range of the duty cycle. The flyback circuit works in discontinuous… read more here.
Keywords: class; class converter; led driver; driver based ... See more keywords
Analysis and design of modular open‐loop LED driver with multi‐channel output currents
Sign Up to like & getrecommendations! Published in 2019 at "IET Power Electronics"
DOI: 10.1049/iet-pel.2018.6165
Abstract: In view of some applications for red green blue (RGB) light-emitting diodes (LEDs), a modular multi-channel constant-current LED driver is getting more important to obtain desirable colour and brightness. A multi-channel constant-current LED driver is… read more here.
Keywords: led driver; constant current; output; multi channel ... See more keywords
LED driver based on novel ripple cancellation technique for flicker‐free operation and reduced power processing
Sign Up to like & getrecommendations! Published in 2020 at "Iet Power Electronics"
DOI: 10.1049/iet-pel.2020.0102
Abstract: Light-emitting-diode (LED) drivers are required to maintain the power quality of both the AC input and DC output side. The regulation prevents adverse impacts on the grid and maintains the nominal operating condition of LEDs.… read more here.
Keywords: novel ripple; led driver; power; free operation ... See more keywords
An Isolated PFC Zeta-forward Single-stage Single-switch for LED Driver Without Electrolytic Capacitor
Sign Up to like & getrecommendations! Published in 2020 at "Electric Power Components and Systems"
DOI: 10.1080/15325008.2020.1758842
Abstract: Abstract The high-brightness light-emitting diodes (LEDs) require an AC/DC converter with power factor correction (PFC). The large output electrolytic capacitor, which is used to minimize the low frequency LED current ripple, degrades the operating lifetime… read more here.
Keywords: electrolytic capacitor; single stage; led driver; stage single ... See more keywords
A high-power PCCM LED driver based on GaN eHEMT with hybrid dimming modes
Sign Up to like & getrecommendations! Published in 2021 at "Circuit World"
DOI: 10.1108/cw-12-2020-0350
Abstract: Purpose The purpose of this study is to design a more flexible and larger range of the dimming circuit that achieves the independence of multiple LED strings drive and can time-multiplex the power circuit. Design/methodology/approach… read more here.
Keywords: high power; dimming ratio; proposed led; led driver ... See more keywords
Study on Wide Dimming Range Solution for LLC LED Driver Based on an Accurate Time-Domain Analysis Considering the Parasitical Components
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3222371
Abstract: To achieve ultra-deep dimming ratio in LED driver application, the resonant process of LLC resonant converter considering the critical parasitic components has been analyzed in detail with time-domain solution in this paper. The effects of… read more here.
Keywords: time; analysis; llc; led driver ... See more keywords
Fulfill Optimum Calibrated Size of LED Driver Components for Solar Street Lighting Fixture by Adjusting the LEDs Connections
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Access"
DOI: 10.1109/access.2023.3275202
Abstract: Since using of Light-Emitting Diode (LED) lighting fixtures, researchers are working to improve the efficiency and increase the lifetime of LEDs. Each LED lighting fixture consists of two main parts, the 1st part is LEDs… read more here.
Keywords: adjusting leds; lighting fixture; size; led driver ... See more keywords
A Compact Electrolytic-Free Two-Stage Universal Input Offline LED Driver With Volume-Optimized SSC Energy Buffer
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Journal of Emerging and Selected Topics in Power Electronics"
DOI: 10.1109/jestpe.2018.2818737
Abstract: This paper presents a single-phase, two-stage electrolytic-free offline LED driver that utilizes a hybrid film-ceramic stacked switched capacitor (SSC) energy buffer in place of limited-life electrolytic capacitors for twice-line-frequency energy buffering. The proposed LED driver… read more here.
Keywords: ssc energy; energy buffer; led driver; energy ... See more keywords
Reconfigurable Hybrid-Switched-Capacitor-Resonant LED Driver for Multiple Mains Voltages
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Journal of Emerging and Selected Topics in Power Electronics"
DOI: 10.1109/jestpe.2018.2859408
Abstract: This paper presents a hybrid-switched-capacitor-resonant (HSCR) light-emitting diode (LED) driver based on a stackable switched-capacitor (SC) converter IC rated for 15–20-W applications. Bulky transformers have been replaced with an SC ladder to perform high-efficiency voltage… read more here.
Keywords: resonant; voltage; switched capacitor; led driver ... See more keywords
An AC Input Switching-Converter-Free LED Driver With Low-Frequency-Flicker Reduction
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Journal of Solid-State Circuits"
DOI: 10.1109/jssc.2017.2656147
Abstract: This paper presents a novel switching-converter-free ac–dc light-emitting diode (LED) driver with low-frequency-flicker reduction for general lighting applications. The proposed driving solution can minimize the system size as it enables the monolithic integration of the… read more here.
Keywords: converter free; frequency; led driver; power ... See more keywords