A Circuit for Improving DC-DC Converter Dynamic Response

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Abstract:

To improve the disadvantage of DC-DC converter output voltage fluctuation when output current changes in wide range, a compensation circuit for improving DC-DC converter dynamic response was presented. The circuit was based on the theory of parallel or anti-parallel capacitor. A charged capacitor was paralleled when output current positive jumped. A charged capacitor was anti-paralleled when output current negative jumped. It worked when output current changed. So DC-DC converter dynamic response was improved and efficiency could be high in the same time. The simulation results proved that the effect of compensation circuit in improving the converter dynamic response and stabilizing the output voltage.

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3133-3138

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August 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] B. Yang, L.J. Cai, Present State and Perspectives of Low Voltage and High Current Communication Power Supply, The World of Power Supply, vol. 07, pp.1-5, (2005).

Google Scholar

[2] Y.F. Liu, B. Zhang, Performance Comparing of Fast Response Boundary-control with Sliding-mode Control, The World of Power Supply, vol. 09, pp.48-52, (2005).

Google Scholar

[3] W.M. Lin, S.P. Huang, G.S. Zhang etc, A New Open-Loop Control Strategy for a DC-DC Switching Converter With Fast Load Transient Response, Proceedings of the Csee, vol. 21, pp.78-81, (2001).

Google Scholar

[4] H.Y. Shen, L.J. Cai, Research on New Control Strategies for Improving the Transient Response of DC/DC Converters, Telecom Power Technologies, vol. 24 pp.29-32, (2007).

Google Scholar

[5] R. Zhao, B. Zhang, A Novel Approach to Improve the Low Voltage/High Current Converter Dynamic Response, Power Electronics, vol. 38 pp.39-41, (2004).

Google Scholar

[6] Andrzej Wojtasik, Andreas Svensson, Claes Svardsjo, A Novel Approach for Enhancement of DCDC Converter Dynamic Response, CA: Power Electronics Specialists Conference, (2002).

DOI: 10.1109/psec.2002.1023036

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