A new LED current balancing scheme using double-step-down DC-DC converter

Kisu Kim; Do Duc Tuan; Heung Geun Kim; Honnyong Cha

doi:10.5370/KIEE.2017.66.10.1474

A new LED current balancing scheme using double-step-down DC-DC converter

Kisu Kim, Do Duc Tuan, Heung Geun Kim, Honnyong Cha

School of Energy Engineering

Kyungpook National University

Research output: Contribution to journal › Article › peer-review

Abstract

This paper presents a new LED current balancing scheme using double-step-down dc-dc converter. With the proposed structure, the two channel LED currents are automatically balanced without using any dedicated control or auxiliary circuit. In addition, switching loss of the switching devices in the proposed LED driver is lower than that of the conventional buck LED driver. To verify the operation of the proposed LED driver, a hardware prototype is built and tested with different number of LED.

Original language	English
Pages (from-to)	1474-1480
Number of pages	7
Journal	Transactions of the Korean Institute of Electrical Engineers
Volume	66
Issue number	10
DOIs	https://doi.org/10.5370/KIEE.2017.66.10.1474
State	Published - 2017

Keywords

Capacitor
Current balancing
Current regulator
Double-step-down
LED driver

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10.5370/KIEE.2017.66.10.1474

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title = "A new LED current balancing scheme using double-step-down DC-DC converter",

abstract = "This paper presents a new LED current balancing scheme using double-step-down dc-dc converter. With the proposed structure, the two channel LED currents are automatically balanced without using any dedicated control or auxiliary circuit. In addition, switching loss of the switching devices in the proposed LED driver is lower than that of the conventional buck LED driver. To verify the operation of the proposed LED driver, a hardware prototype is built and tested with different number of LED.",

keywords = "Capacitor, Current balancing, Current regulator, Double-step-down, LED driver",

author = "Kisu Kim and Tuan, {Do Duc} and Kim, {Heung Geun} and Honnyong Cha",

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AU - Tuan, Do Duc

AU - Kim, Heung Geun

AU - Cha, Honnyong

N1 - Publisher Copyright: Copyright The Korean Institute of Electrical Engineers.

PY - 2017

Y1 - 2017

N2 - This paper presents a new LED current balancing scheme using double-step-down dc-dc converter. With the proposed structure, the two channel LED currents are automatically balanced without using any dedicated control or auxiliary circuit. In addition, switching loss of the switching devices in the proposed LED driver is lower than that of the conventional buck LED driver. To verify the operation of the proposed LED driver, a hardware prototype is built and tested with different number of LED.

AB - This paper presents a new LED current balancing scheme using double-step-down dc-dc converter. With the proposed structure, the two channel LED currents are automatically balanced without using any dedicated control or auxiliary circuit. In addition, switching loss of the switching devices in the proposed LED driver is lower than that of the conventional buck LED driver. To verify the operation of the proposed LED driver, a hardware prototype is built and tested with different number of LED.

KW - Capacitor

KW - Current balancing

KW - Current regulator

KW - Double-step-down

KW - LED driver

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ER -

A new LED current balancing scheme using double-step-down DC-DC converter

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Keywords

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