AC direct multiple-string LED driver with low THD and minimum components

Yutsung Yeh, Minjie Chen, Xutao Li, Hirofumi Shinohara, Tsutomu Yoshihara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

A multiple-string LED driver with low total harmonic distortion (THD) by sinusoid-like reference and minimum components is presented in this paper. The proposed commutating method is able to control the source-coupled-pair by simplest circuitry and without passive components. The reference voltage is divided from rectifier in order to minimize the THD. The simulated 4-strings LED driver is able to achieve high power factor 99.95% and very low THD 3.16% under a 10W/100V AC condition. And the proposed circuit is implemented by differential pair and diodes to replace op-amp and bias voltage.

Original languageEnglish
Title of host publicationISOCC 2015 - International SoC Design Conference: SoC for Internet of Everything (IoE)
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages117-118
Number of pages2
ISBN (Print)9781467393089
DOIs
Publication statusPublished - 2016 Feb 8
Event12th International SoC Design Conference, ISOCC 2015 - Gyeongju, Korea, Republic of
Duration: 2015 Nov 22015 Nov 5

Other

Other12th International SoC Design Conference, ISOCC 2015
CountryKorea, Republic of
CityGyeongju
Period15/11/215/11/5

Fingerprint

Harmonic distortion
Light emitting diodes
Operational amplifiers
Bias voltage
Diodes
Networks (circuits)
Electric potential

Keywords

  • commutation
  • low THD
  • multiple-string
  • source-coupled-pair

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Yeh, Y., Chen, M., Li, X., Shinohara, H., & Yoshihara, T. (2016). AC direct multiple-string LED driver with low THD and minimum components. In ISOCC 2015 - International SoC Design Conference: SoC for Internet of Everything (IoE) (pp. 117-118). [7401680] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISOCC.2015.7401680

AC direct multiple-string LED driver with low THD and minimum components. / Yeh, Yutsung; Chen, Minjie; Li, Xutao; Shinohara, Hirofumi; Yoshihara, Tsutomu.

ISOCC 2015 - International SoC Design Conference: SoC for Internet of Everything (IoE). Institute of Electrical and Electronics Engineers Inc., 2016. p. 117-118 7401680.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Yeh, Y, Chen, M, Li, X, Shinohara, H & Yoshihara, T 2016, AC direct multiple-string LED driver with low THD and minimum components. in ISOCC 2015 - International SoC Design Conference: SoC for Internet of Everything (IoE)., 7401680, Institute of Electrical and Electronics Engineers Inc., pp. 117-118, 12th International SoC Design Conference, ISOCC 2015, Gyeongju, Korea, Republic of, 15/11/2. https://doi.org/10.1109/ISOCC.2015.7401680
Yeh Y, Chen M, Li X, Shinohara H, Yoshihara T. AC direct multiple-string LED driver with low THD and minimum components. In ISOCC 2015 - International SoC Design Conference: SoC for Internet of Everything (IoE). Institute of Electrical and Electronics Engineers Inc. 2016. p. 117-118. 7401680 https://doi.org/10.1109/ISOCC.2015.7401680
Yeh, Yutsung ; Chen, Minjie ; Li, Xutao ; Shinohara, Hirofumi ; Yoshihara, Tsutomu. / AC direct multiple-string LED driver with low THD and minimum components. ISOCC 2015 - International SoC Design Conference: SoC for Internet of Everything (IoE). Institute of Electrical and Electronics Engineers Inc., 2016. pp. 117-118
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