A 110-V AC, 17.1-W Multi-Segmented LED Driver with 96.2% Power Factor

Taehoon Jeong ;   Jaeha Kim

Tags AC LED Driver Boost Converter Power Factor Correction Modular Load Switching Manufacturing Cost Reduction Time-Multiplexing Switch Control

This paper presents an AC-powered, boost-converter LED driver that can be implemented with low-inductance inductor and low-voltage…

Read More Download this Paper

A Novel Bipolar Series Ripple Compensation Method for Single-Stage High-Power LED Driver

Yajie Qiu ;   Laili Wang ;   Yan-Fei Liu ;   P.C. Sen

Tags LED driver high-power single-stage electrolytic-capacitor-free flicker-free series compensation

It has been well documented that series compensation (SC) configuration can significantly reduce the total output capacitance of LED driver…

Read More Download this Paper

A Novel Passive Type LED Driver for Static LED Power Regulation by Multi-Stage Switching Circuits

Eun S. Lee ;   Duy T. Nguyen ;   Chun T. Rim

Tags passive-type LED driver static LED power regulation multi-stage switching circuits

A novel passive-type LED driver that can regulate LED power PL statically for the source voltage Vs variation is proposed. Contrary to…

Read More Download this Paper

A Ring Diode-Capacitor Network for Current-Balancing Multiple LED Strings

Ruihong Zhang ;   Henry Shu-Hung Chung

Tags Lighting technology LED driver Current balancing diode-capacitor network

A ring diode-capacitor network for current-balancing multiple LED strings will be presented. The concept is based on utilizing the…

Read More Download this Paper

A Scalable HB-LED Driver for Multi-Color Adaptive Lighting Systems

Kumar Modepalli ;   Leila Parsa

Tags SIMO converter Buck ConverterLED drivers Adaptive Lighting systemsDynamic Lighting systemsLED string balance Charge Control

In this paper a HB- LED driver that can drive multi – color HB-LED strings using Single Inductor Multiple Current Output (SIMCO) buck…

Read More Download this Paper

High Efficiency Hybrid Current Balancing Method for Multi-Channel LED Drive

Rongrong Zhao ;   Junming Zhang

Tags Multi-output LED driverCurrent balancing method Hybrid LLC high efficiency

a novel hybrid current balancing method for multi-channel LED drive based on quasi-two-stage converter are proposed. In the proposed…

Read More Download this Paper

Line-Frequency Dual Input-Voltage-Level LED Driver

Tsorng-Juu Liang ;   Jyun-Peng Wu ;   Wei-Ching Tseng ;   Po-Yen Lin ;   Sheng-Ju Chen

Tags light emitter diode

In this paper, a line-frequency dual input-voltage-level LED driver is proposed. The conventional AC LED topologies are operated with single…

Read More Download this Paper

Single Stage Switched Capacitor LED Driver with High Power Factor and Reduced Current Ripple

Esio Eloi ;   Edilson Mineiro Sá Jr. ;   Rodrigo Linhares Dos Santos ;   Pedro A. Miranda ;   Fernando L.M. Antunes

Tags LED lighting Power factor correction LED driver resonant switched capacitor

This paper presents a switched capacitor-based converter to drive high power light emitting diodes (LEDs). Unlike the traditional switched…

Read More Download this Paper

The LED Driver Compatible with Electronic Ballasts by Variable Switched Capacitor

Duy T. Nguyen ;   Eun S. Lee ;   Chun T. Rim

Tags Variable switched capacitor LED driver electronic ballast zero voltage switching

An LED driver compatible with most electronic ballasts commercially used is newly proposed, which adopts a variable switched capacitor by…

Read More Download this Paper