Current mode DC-DC buck converters with optimal fast-transient control

被引：13

作者：

Lee, Yu-Huei ^{[1
]}

Wang, Shih-Jung ^{[1
]}

Hsieh, Chun-Yu ^{[1
]}

Chen, Ke-Horng ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Elect & Control Engn, Hsinchu, Taiwan

来源：

PROCEEDINGS OF 2008 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-10 | 2008年

关键词：

D O I：

10.1109/ISCAS.2008.4542100

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A load dependent proportional-integration (PI) compensation is proposed in this paper for minimizing transient dropout voltage and accelerating the transient response of current mode DC-DC converters. The adaptive compensation resistance and capacitance are used to react to the sudden load variations: At the beginning of load transient response, the adaptive compensation capacitance is decreased to move the compensation pole-zero pair to a higher frequency for achieving fast transient response. At the end of load transient response, the pole-zero pair is moved back to an optimal position for extending the system bandwidth and phase margin based on the instant load condition. Simulation results demonstrate the excellent performance at transient period and steady-state with this proposed fast transient control and adaptive pole-zero compensation. The overshoot/undershoot voltage is smaller than 45mV and transient period is shorter than 15us as load current suddenly changes between 100mA and 500mA.

引用

页码：3045 / 3048

页数：4

共 8 条

[1]

CHANG CJ, 2005, BIDIRECTIONAL CURREN, P111

[2] Bidirectional current-mode capacitor multipliers for on-chip compensation [J].

Chen, Ke-Horng ;

Chang, Chia-Jung ;

Liu, Te-Hsien .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2008, 23 (01) :180-188

[3] Fast-transient dc-dc converter with on-chip compensated error amplifier [J].

Chen, Ke-Horng ;

Huang, Hong-Wei ;

Kuo, Sy-Yen .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2007, 54 (12) :1150-1154

[4] Adaptive frequency control technique for enhancing transient performance of DC-DC converters [J].

Huang, Hong-Wei ;

Hsieh, Chun-Yu ;

Chen, Ke-Horng ;

Kuo, Sy-Yen .

ESSCIRC 2007: PROCEEDINGS OF THE 33RD EUROPEAN SOLID-STATE CIRCUITS CONFERENCE, 2007, :174-+

[5] Dithering skip modulation, width and dead time controllers in highly efficient DC-DC converters for system-on-chip applications [J].

Huang, Hong-Wei ;

Chen, Ke-Horng ;

Kuo, Sy-Yen .

IEEE JOURNAL OF SOLID-STATE CIRCUITS, 2007, 42 (11) :2451-2465

[6]

Kwok KC, 2002, 2002 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOL IV, PROCEEDINGS, P735

[7] A stable compensation scheme for low dropout regulator in the absence of ESR [J].

Kwok, Tsz-Fai ;

Ki, Wing-Hung .

ESSCIRC 2007: PROCEEDINGS OF THE 33RD EUROPEAN SOLID-STATE CIRCUITS CONFERENCE, 2007, :416-419

[8]

Razavi B., 2017, DESIGN ANALOG CMOS I

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