A High Conversion Ratio and 97.4% High Efficiency Three-Switch Boost Converter With Duty-Dependent Charge Topology for 1.2-A High Driving Current and 20% Reduction of Inductor DC Current in MiniLED Applications

Si Yi Li; Yen An Lin; Zheng Lun Huang; Jia Jyun Lee; Ke Horng Chen; Ying Hsi Lin; Shian Ru Lin; Tsung Yen Tsai

doi:10.1109/JSSC.2021.3115631

A High Conversion Ratio and 97.4% High Efficiency Three-Switch Boost Converter With Duty-Dependent Charge Topology for 1.2-A High Driving Current and 20% Reduction of Inductor DC Current in MiniLED Applications

Si Yi Li, Yen An Lin, Zheng Lun Huang, Jia Jyun Lee, Ke Horng Chen^*, Ying Hsi Lin, Shian Ru Lin, Tsung Yen Tsai

^*Corresponding author for this work

Department of Electrical and Computer Engineering

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

16 Scopus citations

Abstract

This article presents a three-switch (3S) boost converter with hysteresis current control applied in MiniLED panels. It uses only three power switches to achieve high conversion ratio (=7.5) and low inductor current (20% lower than conventional boost converters). Meanwhile, the charging time of the flying capacitor will increase as the duty cycle increases. It enables the proposed 3S boost converter to have a high drive current (=1.2 A). In addition, the right half-plane (RHP) zero of the proposed topology is related to the switching frequency. By dynamically adjusting the position of RHP zero during transients, the recovery time and output voltage drop can be reduced at the same time. When the load increases from 120 mA to 1.2 A, the recovery time can be accelerated to 42 μs, and the maximum efficiency can reach 97.4%.

Original language	English
Pages (from-to)	1877-1887
Number of pages	11
Journal	IEEE Journal of Solid-State Circuits
Volume	57
Issue number	6
DOIs	https://doi.org/10.1109/JSSC.2021.3115631
State	Published - 1 Jun 2022

Keywords

Boost converter
MiniLEDs
flying capacitor
high converting ratio
hysteresis current control
low inductor current

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Li, S. Y., Lin, Y. A., Huang, Z. L., Lee, J. J., Chen, K. H., Lin, Y. H., Lin, S. R., & Tsai, T. Y. (2022). A High Conversion Ratio and 97.4% High Efficiency Three-Switch Boost Converter With Duty-Dependent Charge Topology for 1.2-A High Driving Current and 20% Reduction of Inductor DC Current in MiniLED Applications. IEEE Journal of Solid-State Circuits, 57(6), 1877-1887. https://doi.org/10.1109/JSSC.2021.3115631

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title = "A High Conversion Ratio and 97.4% High Efficiency Three-Switch Boost Converter With Duty-Dependent Charge Topology for 1.2-A High Driving Current and 20% Reduction of Inductor DC Current in MiniLED Applications",

abstract = "This article presents a three-switch (3S) boost converter with hysteresis current control applied in MiniLED panels. It uses only three power switches to achieve high conversion ratio (=7.5) and low inductor current (20% lower than conventional boost converters). Meanwhile, the charging time of the flying capacitor will increase as the duty cycle increases. It enables the proposed 3S boost converter to have a high drive current (=1.2 A). In addition, the right half-plane (RHP) zero of the proposed topology is related to the switching frequency. By dynamically adjusting the position of RHP zero during transients, the recovery time and output voltage drop can be reduced at the same time. When the load increases from 120 mA to 1.2 A, the recovery time can be accelerated to 42 μs, and the maximum efficiency can reach 97.4%.",

keywords = "Boost converter, MiniLEDs, flying capacitor, high converting ratio, hysteresis current control, low inductor current",

author = "Li, {Si Yi} and Lin, {Yen An} and Huang, {Zheng Lun} and Lee, {Jia Jyun} and Chen, {Ke Horng} and Lin, {Ying Hsi} and Lin, {Shian Ru} and Tsai, {Tsung Yen}",

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year = "2022",

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doi = "10.1109/JSSC.2021.3115631",

language = "English",

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Li, SY, Lin, YA, Huang, ZL, Lee, JJ, Chen, KH, Lin, YH, Lin, SR & Tsai, TY 2022, 'A High Conversion Ratio and 97.4% High Efficiency Three-Switch Boost Converter With Duty-Dependent Charge Topology for 1.2-A High Driving Current and 20% Reduction of Inductor DC Current in MiniLED Applications', IEEE Journal of Solid-State Circuits, vol. 57, no. 6, pp. 1877-1887. https://doi.org/10.1109/JSSC.2021.3115631

A High Conversion Ratio and 97.4% High Efficiency Three-Switch Boost Converter With Duty-Dependent Charge Topology for 1.2-A High Driving Current and 20% Reduction of Inductor DC Current in MiniLED Applications. / Li, Si Yi; Lin, Yen An; Huang, Zheng Lun et al.
In: IEEE Journal of Solid-State Circuits, Vol. 57, No. 6, 01.06.2022, p. 1877-1887.

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

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T1 - A High Conversion Ratio and 97.4% High Efficiency Three-Switch Boost Converter With Duty-Dependent Charge Topology for 1.2-A High Driving Current and 20% Reduction of Inductor DC Current in MiniLED Applications

AU - Li, Si Yi

AU - Lin, Yen An

AU - Huang, Zheng Lun

AU - Lee, Jia Jyun

AU - Chen, Ke Horng

AU - Lin, Ying Hsi

AU - Lin, Shian Ru

AU - Tsai, Tsung Yen

PY - 2022/6/1

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N2 - This article presents a three-switch (3S) boost converter with hysteresis current control applied in MiniLED panels. It uses only three power switches to achieve high conversion ratio (=7.5) and low inductor current (20% lower than conventional boost converters). Meanwhile, the charging time of the flying capacitor will increase as the duty cycle increases. It enables the proposed 3S boost converter to have a high drive current (=1.2 A). In addition, the right half-plane (RHP) zero of the proposed topology is related to the switching frequency. By dynamically adjusting the position of RHP zero during transients, the recovery time and output voltage drop can be reduced at the same time. When the load increases from 120 mA to 1.2 A, the recovery time can be accelerated to 42 μs, and the maximum efficiency can reach 97.4%.

AB - This article presents a three-switch (3S) boost converter with hysteresis current control applied in MiniLED panels. It uses only three power switches to achieve high conversion ratio (=7.5) and low inductor current (20% lower than conventional boost converters). Meanwhile, the charging time of the flying capacitor will increase as the duty cycle increases. It enables the proposed 3S boost converter to have a high drive current (=1.2 A). In addition, the right half-plane (RHP) zero of the proposed topology is related to the switching frequency. By dynamically adjusting the position of RHP zero during transients, the recovery time and output voltage drop can be reduced at the same time. When the load increases from 120 mA to 1.2 A, the recovery time can be accelerated to 42 μs, and the maximum efficiency can reach 97.4%.

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A High Conversion Ratio and 97.4% High Efficiency Three-Switch Boost Converter With Duty-Dependent Charge Topology for 1.2-A High Driving Current and 20% Reduction of Inductor DC Current in MiniLED Applications

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Keywords

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