抑制输入扰动的Buck变换器控制方法

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Abstract An improved voltage-mode control method is presented for Buck converter. The input voltage is modulated by triangular carrier, which is taken as the feed-forward input. Combining with the end-point prediction, the influence of RC compensation network is bypassed, which makes the input disturbance and reference variation directly reflect to the variation of duty cycle. The quantitative analysis of the presented method demonstrates that the variation of duty cycle depends on both input disturbance and reference variation, while the output variation is just determined by reference variation. The closed loop gain of the system is provided, which shows that the system stability analysis is independent of input voltage. The simulation and experimental results demonstrate that Buck converter with the presented method can reject the input disturbance naturally. When the reference voltage is constant, the stability of output voltage is better than the other methods and the output voltage has no transient overshoot.

Key words： Input-disturbance rejection voltage feed forward amplitude modulation transient overshoot

Received: 20 November 2009 Published: 07 March 2014

PACS:

TP303.3

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	Liu Qing
	Zhang Donglai

Cite this article:

Liu Qing,Zhang Donglai. An Improved Control Method of Buck Converter to Reject Input-Disturbance[J]. Transactions of China Electrotechnical Society, 2011, 26(4): 93-99.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2011/V26/I4/93

[1] Yuan Yen Mai, Philip K T Mok. A constant frequency output ripple voltage based buck converter without using large ESR capacitor[J]. IEEE Transactions on Circuits and Systems-II: Express Briefs, 2008, 55(8): 748-752.
[2] Hoyerby M, Andersen M. Ultra fast tracking power supply with fourth-order output filter and fixed- frequency hysteretic control[J]. IEEE Transactions on Power Electronics, 2008, 23(5): 2387-2398.
[3] Mikkel C W Høyerby, Michael A E Andersen. Self-oscillating soft switching envelope tracking power supply for Tetra2 base station[C]. International Telecommunications Energy Conference, 2007: 53- 60.
[4] Man Siu, Philip K T Mok, Ka Nang Leung, et al. A voltage-mode PWM buck regulator with end-point prediction[J]. IEEE Transactions on Circuits and Systems-II: Express Briefs, 2006, 53(4): 294-298.
[5] Kiyohiko Takahashi, Shingo Yamanouchi, Tomohisa Hirayama, et al. An envelope tracking power amplifier using an adaptive biased envelope amplifier for WCDMA handsets[C]. Radio Frequency Integrated Circuits Symposium, 2008: 405-408.
[6] 王凤岩, 许建平. V²C控制Buck变换器分析[J]. 中国电机工程学报, 2006, 26(2): 121-126.
[7] 王建华, 张方华, 龚春英, 等. 电压控制型Buck DC/DC变换器输出阻抗优化设计[J]. 电工技术学报, 2007, 22(8): 18-22.
[8] 周雒维, 彭容, 杜雄. 单周控制双Buck型电压源换流器[J]. 中国电机工程学报, 2005, 25(17): 11-14.
[9] 李乔, 吴捷. 自抗扰控制及其在DC-DC变换器中的应用[J]. 电工技术学报, 2005, 20(1): 83-88.
[10] Goder D, Pelletier W. V² architecture provides ultra-fast transient response in switch mode power supplies[C]. Proceedings of HFPC, 1996: 19-23.
[11] Keyue M Smedle, Slobodan Cuk. One-cycle control of switching converters[J]. IEEE Transactions on Power Electronics, 1995, 10(6): 625-633.
[12] Hugo S Marques, Beatriz V Borges, Victor Anunciada A. Transient behavior and frequency response of constant frequency one cycle charge control modulator (O3C)[J]. IEEE Transactions on Power Electronics, 2008, 23(5): 2507-2515.
[13] Yu Chun, Chen Ke Horng. Boost DC-DC converter with charge-recycling (CR) and fast reference tracking (FRT) techniques for high-efficiency and low-cost LED driver[C]. Solid-State Circuits Conference, 2008: 358-361.
[14] Patrick Y Wu, Philip K T Mok. A monolithic Buck converter with near-optimum reference tracking response using adaptive-output-feedback[J]. IEEE Journal of Solid-State Circuits, 2007, 42(11): 2441-2450.