Dual-path frequency compensation for current-mode buck converters

Pang Jung Liu; Shang Ru Hsu; Tzu Hsuan Chen

doi:10.1109/PEDS.2015.7203519

Dual-path frequency compensation for current-mode buck converters

Pang Jung Liu
, Shang Ru Hsu
, Tzu Hsuan Chen

電機工程系

研究成果: 書籍/報告/會議論文中的章節 › 會議投稿 › 同行評審

1 引文斯高帕斯（Scopus）

摘要

This paper proposes a dual-path frequency compensation (DPFC) for implementing on-chip error amplifier (EA). The DPFC uses two operation amplifiers to simultaneously charge and discharge a compensation capacitor. As a result, the equivalent capacitance is significantly multiplied with small additional power and silicon area. Since the slew rate of the EA is increased owing to the small compensation capacitance, the transient response of the buck converter is also enhanced dramatically. A laboratory converter with the DPFC is implemented with 0.35-μm CMOS process. Simulation results demonstrate the converter stability and transient response. The transient recovery time is less than 4 μs for load current changing from 500 mA to 50 mA. With the DPFC, the compensation capacitor is shrunk significantly and no compensation resistor is needed.

原文	English
主出版物標題	2015 IEEE 11th International Conference on Power Electronics and Drive Systems, PEDS 2015
發行者	Institute of Electrical and Electronics Engineers Inc.
頁面	432-436
頁數	5
ISBN（電子）	9781479944033
DOIs	https://doi.org/10.1109/PEDS.2015.7203519
出版狀態	Published - 14 8月 2015
事件	11th IEEE International Conference on Power Electronics and Drive Systems, PEDS 2015 - Sydney, Australia 持續時間: 9 6月 2015 → 12 6月 2015

出版系列

名字	Proceedings of the International Conference on Power Electronics and Drive Systems
卷	2015-August

Conference

Conference	11th IEEE International Conference on Power Electronics and Drive Systems, PEDS 2015
國家/地區	Australia
城市	Sydney
期間	9/06/15 → 12/06/15

文獻附註

Publisher Copyright:
© 2015 IEEE.

存取文件

10.1109/PEDS.2015.7203519

其它文件與鏈接

Link to publication in Scopus

引用此

Liu, P. J., Hsu, S. R., & Chen, T. H. (2015). Dual-path frequency compensation for current-mode buck converters. 於 2015 IEEE 11th International Conference on Power Electronics and Drive Systems, PEDS 2015 (頁 432-436). 文章 7203519 (Proceedings of the International Conference on Power Electronics and Drive Systems; 卷 2015-August). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PEDS.2015.7203519

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title = "Dual-path frequency compensation for current-mode buck converters",

abstract = "This paper proposes a dual-path frequency compensation (DPFC) for implementing on-chip error amplifier (EA). The DPFC uses two operation amplifiers to simultaneously charge and discharge a compensation capacitor. As a result, the equivalent capacitance is significantly multiplied with small additional power and silicon area. Since the slew rate of the EA is increased owing to the small compensation capacitance, the transient response of the buck converter is also enhanced dramatically. A laboratory converter with the DPFC is implemented with 0.35-μm CMOS process. Simulation results demonstrate the converter stability and transient response. The transient recovery time is less than 4 μs for load current changing from 500 mA to 50 mA. With the DPFC, the compensation capacitor is shrunk significantly and no compensation resistor is needed.",

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Liu, PJ, Hsu, SR & Chen, TH 2015, Dual-path frequency compensation for current-mode buck converters. 於 2015 IEEE 11th International Conference on Power Electronics and Drive Systems, PEDS 2015., 7203519, Proceedings of the International Conference on Power Electronics and Drive Systems, 卷 2015-August, Institute of Electrical and Electronics Engineers Inc., 頁 432-436, 11th IEEE International Conference on Power Electronics and Drive Systems, PEDS 2015, Sydney, Australia, 9/06/15. https://doi.org/10.1109/PEDS.2015.7203519

Dual-path frequency compensation for current-mode buck converters. / Liu, Pang Jung; Hsu, Shang Ru; Chen, Tzu Hsuan.
2015 IEEE 11th International Conference on Power Electronics and Drive Systems, PEDS 2015. Institute of Electrical and Electronics Engineers Inc., 2015. p. 432-436 7203519 (Proceedings of the International Conference on Power Electronics and Drive Systems; 卷 2015-August).

研究成果: 書籍/報告/會議論文中的章節 › 會議投稿 › 同行評審

TY - GEN

T1 - Dual-path frequency compensation for current-mode buck converters

AU - Liu, Pang Jung

AU - Hsu, Shang Ru

AU - Chen, Tzu Hsuan

PY - 2015/8/14

Y1 - 2015/8/14

N2 - This paper proposes a dual-path frequency compensation (DPFC) for implementing on-chip error amplifier (EA). The DPFC uses two operation amplifiers to simultaneously charge and discharge a compensation capacitor. As a result, the equivalent capacitance is significantly multiplied with small additional power and silicon area. Since the slew rate of the EA is increased owing to the small compensation capacitance, the transient response of the buck converter is also enhanced dramatically. A laboratory converter with the DPFC is implemented with 0.35-μm CMOS process. Simulation results demonstrate the converter stability and transient response. The transient recovery time is less than 4 μs for load current changing from 500 mA to 50 mA. With the DPFC, the compensation capacitor is shrunk significantly and no compensation resistor is needed.

AB - This paper proposes a dual-path frequency compensation (DPFC) for implementing on-chip error amplifier (EA). The DPFC uses two operation amplifiers to simultaneously charge and discharge a compensation capacitor. As a result, the equivalent capacitance is significantly multiplied with small additional power and silicon area. Since the slew rate of the EA is increased owing to the small compensation capacitance, the transient response of the buck converter is also enhanced dramatically. A laboratory converter with the DPFC is implemented with 0.35-μm CMOS process. Simulation results demonstrate the converter stability and transient response. The transient recovery time is less than 4 μs for load current changing from 500 mA to 50 mA. With the DPFC, the compensation capacitor is shrunk significantly and no compensation resistor is needed.

KW - Frequency compensation

KW - dc-dc converter

KW - slew rat

KW - transient response

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Liu PJ, Hsu SR, Chen TH. Dual-path frequency compensation for current-mode buck converters. 於 2015 IEEE 11th International Conference on Power Electronics and Drive Systems, PEDS 2015. Institute of Electrical and Electronics Engineers Inc. 2015. p. 432-436. 7203519. (Proceedings of the International Conference on Power Electronics and Drive Systems). doi: 10.1109/PEDS.2015.7203519

Dual-path frequency compensation for current-mode buck converters

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