Resonant switched-capacitor auxiliary circuit for active power decoupling in electrolytic capacitor-less AC/DC LED Drivers

Zhenyu Shan; Xiaomei Chen; Shengwen Fan; Guofeng Yuan; Chi K. Tse

doi:10.1109/ECCE.2019.8912977

Resonant switched-capacitor auxiliary circuit for active power decoupling in electrolytic capacitor-less AC/DC LED Drivers

Zhenyu Shan
, Xiaomei Chen
, Shengwen Fan
, Guofeng Yuan
, Chi K. Tse

North China University of Technology
Hong Kong Polytechnic University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

10 Scopus citations

Abstract

This paper introduces an auxiliary circuit that is used to buffer double-line-frequency ripple power and form electrolytic capacitor-less single-phase AC/DC LED drivers. The proposed auxiliary circuit is implemented by a resonant switched capacitor circuit behaving as a gyrator circuit, namely a voltage-dependent current source. The output current of the auxiliary circuit is regulated with constant on-time and hysteresis control schemes. Comparing with other alternative methods, the proposed auxiliary circuit has less power loss due to its zero-current switching (ZCS) operation, and includes smaller passive components because of its higher operating frequency (about 3 MHz). An LED driver prototype with the proposed auxiliary circuit is built, and the experimental results are given to verify the proposed topology and the parameter design.

Original language	English
Title of host publication	2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	866-871
Number of pages	6
ISBN (Electronic)	9781728103952
DOIs	https://doi.org/10.1109/ECCE.2019.8912977
State	Published - Sep 2019
Externally published	Yes
Event	11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019 - Baltimore, United States Duration: 29 Sep 2019 → 3 Oct 2019

Publication series

Name	2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019

Conference

Conference	11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019
Country/Territory	United States
City	Baltimore
Period	29/09/19 → 3/10/19

Keywords

Ac-dc power conversion
Electrolytic capacitor less
LED driver
Resonant switched-capacitor circuit
Ripple power decoupling

Access to Document

10.1109/ECCE.2019.8912977

Cite this

Shan, Z., Chen, X., Fan, S., Yuan, G., & Tse, C. K. (2019). Resonant switched-capacitor auxiliary circuit for active power decoupling in electrolytic capacitor-less AC/DC LED Drivers. In 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019 (pp. 866-871). Article 8912977 (2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2019.8912977

Shan, Zhenyu ; Chen, Xiaomei ; Fan, Shengwen et al. / Resonant switched-capacitor auxiliary circuit for active power decoupling in electrolytic capacitor-less AC/DC LED Drivers. 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 866-871 (2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019).

@inproceedings{6a75d0261fbf4f94805306530115583a,

title = "Resonant switched-capacitor auxiliary circuit for active power decoupling in electrolytic capacitor-less AC/DC LED Drivers",

abstract = "This paper introduces an auxiliary circuit that is used to buffer double-line-frequency ripple power and form electrolytic capacitor-less single-phase AC/DC LED drivers. The proposed auxiliary circuit is implemented by a resonant switched capacitor circuit behaving as a gyrator circuit, namely a voltage-dependent current source. The output current of the auxiliary circuit is regulated with constant on-time and hysteresis control schemes. Comparing with other alternative methods, the proposed auxiliary circuit has less power loss due to its zero-current switching (ZCS) operation, and includes smaller passive components because of its higher operating frequency (about 3 MHz). An LED driver prototype with the proposed auxiliary circuit is built, and the experimental results are given to verify the proposed topology and the parameter design.",

keywords = "Ac-dc power conversion, Electrolytic capacitor less, LED driver, Resonant switched-capacitor circuit, Ripple power decoupling",

author = "Zhenyu Shan and Xiaomei Chen and Shengwen Fan and Guofeng Yuan and Tse, \{Chi K.\}",

note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019 ; Conference date: 29-09-2019 Through 03-10-2019",

year = "2019",

month = sep,

doi = "10.1109/ECCE.2019.8912977",

language = "英语",

series = "2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "866--871",

booktitle = "2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019",

address = "美国",

}

Shan, Z, Chen, X, Fan, S, Yuan, G & Tse, CK 2019, Resonant switched-capacitor auxiliary circuit for active power decoupling in electrolytic capacitor-less AC/DC LED Drivers. in 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019., 8912977, 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019, Institute of Electrical and Electronics Engineers Inc., pp. 866-871, 11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019, Baltimore, United States, 29/09/19. https://doi.org/10.1109/ECCE.2019.8912977

Resonant switched-capacitor auxiliary circuit for active power decoupling in electrolytic capacitor-less AC/DC LED Drivers. / Shan, Zhenyu; Chen, Xiaomei; Fan, Shengwen et al.
2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019. Institute of Electrical and Electronics Engineers Inc., 2019. p. 866-871 8912977 (2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Resonant switched-capacitor auxiliary circuit for active power decoupling in electrolytic capacitor-less AC/DC LED Drivers

AU - Shan, Zhenyu

AU - Chen, Xiaomei

AU - Fan, Shengwen

AU - Yuan, Guofeng

AU - Tse, Chi K.

PY - 2019/9

Y1 - 2019/9

N2 - This paper introduces an auxiliary circuit that is used to buffer double-line-frequency ripple power and form electrolytic capacitor-less single-phase AC/DC LED drivers. The proposed auxiliary circuit is implemented by a resonant switched capacitor circuit behaving as a gyrator circuit, namely a voltage-dependent current source. The output current of the auxiliary circuit is regulated with constant on-time and hysteresis control schemes. Comparing with other alternative methods, the proposed auxiliary circuit has less power loss due to its zero-current switching (ZCS) operation, and includes smaller passive components because of its higher operating frequency (about 3 MHz). An LED driver prototype with the proposed auxiliary circuit is built, and the experimental results are given to verify the proposed topology and the parameter design.

AB - This paper introduces an auxiliary circuit that is used to buffer double-line-frequency ripple power and form electrolytic capacitor-less single-phase AC/DC LED drivers. The proposed auxiliary circuit is implemented by a resonant switched capacitor circuit behaving as a gyrator circuit, namely a voltage-dependent current source. The output current of the auxiliary circuit is regulated with constant on-time and hysteresis control schemes. Comparing with other alternative methods, the proposed auxiliary circuit has less power loss due to its zero-current switching (ZCS) operation, and includes smaller passive components because of its higher operating frequency (about 3 MHz). An LED driver prototype with the proposed auxiliary circuit is built, and the experimental results are given to verify the proposed topology and the parameter design.

KW - Ac-dc power conversion

KW - Electrolytic capacitor less

KW - LED driver

KW - Resonant switched-capacitor circuit

KW - Ripple power decoupling

UR - https://www.scopus.com/pages/publications/85076793315

U2 - 10.1109/ECCE.2019.8912977

DO - 10.1109/ECCE.2019.8912977

M3 - 会议稿件

AN - SCOPUS:85076793315

T3 - 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019

SP - 866

EP - 871

BT - 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019

Y2 - 29 September 2019 through 3 October 2019

ER -

Shan Z, Chen X, Fan S, Yuan G, Tse CK. Resonant switched-capacitor auxiliary circuit for active power decoupling in electrolytic capacitor-less AC/DC LED Drivers. In 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019. Institute of Electrical and Electronics Engineers Inc. 2019. p. 866-871. 8912977. (2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019). doi: 10.1109/ECCE.2019.8912977

Resonant switched-capacitor auxiliary circuit for active power decoupling in electrolytic capacitor-less AC/DC LED Drivers

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