Design and Implementation of a Single-Stage Driver for Supplying an LED Street-Lighting Module With Power Factor Corrections

Cheng, Chun‐An; Chang, Chien-Hsuan; Chung, Tsung-Yuan; Yang, Fu-Li

doi:10.1109/tpel.2014.2312024

Cited by 124 publications

(49 citation statements)

References 19 publications

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“…In [23]- [24], a boost converter and a LLC resonant converter are integrated. Soft-switching operation of power switches reduces switching losses and raises the efficiency.…”

Section: Introductionmentioning

confidence: 99%

Soft-Switching Two-Switch Resonant AC–DC Converter With High Power Factor

Lee

2016

IEEE Trans. Ind. Electron.

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 Abstract-A soft-switching two-switch resonant power factor correction (PFC) converter is presented. In this converter, a boost PFC circuit is integrated with a soft-switching resonant converter. High power factor is achieved by the boost PFC circuit. The voltage across the main switches is confined to the dc-link voltage and the energy of the transformer leakage inductance is also recycled. Soft-switching operation of main switches and output diodes is achieved with a resonant manner and the switching losses are significantly reduced. Therefore, the overall efficiency is improved. The presented theoretical analysis is verified by a prototype of a 48V, 60W converter. where he is currently a Professor. His research interests include the modeling, design and control of power converters, soft-switching power converters, resonant converters, PFC circuits, and driving circuits for plasma display panels.

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“…In [23]- [24], a boost converter and a LLC resonant converter are integrated. Soft-switching operation of power switches reduces switching losses and raises the efficiency.…”

Section: Introductionmentioning

confidence: 99%

Soft-Switching Two-Switch Resonant AC–DC Converter With High Power Factor

Lee

2016

IEEE Trans. Ind. Electron.

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“…Some single-stage drivers that use integrated topologies for streetlight applications have been proposed [20,[22][23][24]. A single-stage LED streetlight driver which integrates a dual buck-boost PFC converter with a half-bridge-type LLC resonant converter is proposed in [20], a driver which integrates an interleaved boost PFC converter with a half-bridge LLC resonant converter is presented in [22], a driver which integrates a dual boost AC-DC converter with a half-bridge LLC resonant converter is proposed in [23], and another one that integrates a modified bridgeless PFC converter with a halfbridge LLC resonant converter is presented in reference [24].…”

Section: Introductionmentioning

confidence: 99%

A single‐stage LED streetlight driver with PFC and digital PWM dimming capability

Cheng

Chung

2016

Circuit Theory & Apps

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SUMMARYThis paper proposes a single-stage light-emitting diode (LED) driver that offers power-factor correction and digital pulse-width modulation (PWM) dimming capability for streetlight applications. The presented LED streetlight driver integrates an alternating current-direct current (AC-DC) converter with coupled inductors and a half-bridge-type LLC DC-DC resonant converter into a single-stage circuit topology. The sub-circuit of the AC-DC converter with coupled inductors is designed to be operated in discontinuous-conduction mode for achieving input-current shaping. Zero-voltage switching of two active power switches and zerocurrent switching of two output-rectifier diodes in the presented LED driver decrease the switching losses; thus, the circuit efficiency is increased. A prototype driver for powering a 144-W-rated LED streetlight module with input utility-line voltages ranging from 100 to 120 V is implemented and tested. The proposed streetlight driver features cost-effectiveness, high circuit efficiency, high power factor, low levels of inputcurrent harmonics, and a digital PWM dimming capability ranging from 20% to 100% output rated LED power, which is fulfilled by a micro-controller. Satisfying experimental results, including dimming tests, verify the feasibility of the proposed LED streetlight driver.

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“…The method of integrating the first power factor correction (PFC) stage and the second L LC stage LED driving was presented in [7]. It achieved a reduced component count compared with a standard two-stage LED driver.…”

Section: Introductionmentioning

confidence: 99%

A Flicker-Free Single-Stage Offline LED Driver With High Power Factor

Peng

Liu

Sen

2015

IEEE J. Emerg. Sel. Topics Power Electron.

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A conventional offline single-stage light-emitting diode (LED) driver with a high power factor usually produces a significant twice-line-frequency ripple LED current, where the ripple LED current is presented as flickering to human eye. This paper introduces a ripple cancellation method to remove the twice-line-frequency voltage ripple for an offline single-stage LED driver with a power factor correction. Consequently, a dc LED current can be produced to achieve flicker-free LED driving performance. At the same time, the required storage capacitor for the proposed LED driver can be greatly reduced, and the circuit implementation to achieve ripple cancellation is simple. Thus, the overall cost of the proposed LED driver is low. The proposed LED driver also features high efficiency because of its power structure. A 35-W Flyback experimental prototype and a 10-W Buck-Boost experimental prototype have been built to validate the proposed design and demonstrate its optimal performance. Index Terms-Flicker-free light-emitting diode (LED) driving, high power factor, ripple cancellation, single-stage power conversion.

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Design and Implementation of a Single-Stage Driver for Supplying an LED Street-Lighting Module With Power Factor Corrections

Cited by 124 publications

References 19 publications

Soft-Switching Two-Switch Resonant AC–DC Converter With High Power Factor

Soft-Switching Two-Switch Resonant AC–DC Converter With High Power Factor

A single‐stage LED streetlight driver with PFC and digital PWM dimming capability

A Flicker-Free Single-Stage Offline LED Driver With High Power Factor

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