非对称PWM和FM-LCC双输出变换器的控制

2011 INTERNATIONAL CONFERENCE ON RECENT ADVANCEMENTS IN ELECTRICAL, ELECTRONICS AND CONTROL ENGINEERING Pub Date : 2011-12-01 DOI:10.1109/ICONRAEECE.2011.6129743

K. Sundararaman, R. Dhanalakshmi, M. Gopalakrishnan

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引用次数: 1

摘要

本文讨论了双输出半桥变换器的控制问题。两个独立的稳压输出由两个开关组成的单支路获得。其中一个输出通过LCC(电感-电容-电容)谐振变换器的开关频率进行调节，另一个输出通过非对称脉宽调制的占空比进行控制。输出可以在很宽的输入电压和负载变化范围内调节。由于每个输出的独立控制，输出之间的交叉调节是最小的。该拓扑结构还实现了零电压开关，可以实现更高的开关频率。讨论了输入48V，输出12V/20A和5V/10A的变换器的仿真和实验结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Control of an asymmetric PWM and FM-LCC dual output converter

This paper discusses the control of a dual output half bridge converter. Two independent regulated outputs are obtained with a single leg consisting of two switches. One of the two outputs is regulated through the switching frequency of an LCC (Inductor-Capacitor-Capacitor) resonant converter and the other output is controlled through duty cycle by asymmetrical pulse width modulation. The outputs are regulated over a wide range of input voltages and load variations. Cross regulation between the outputs is minimal due to independent control of each output. Zero voltage switching is also realized in the topology and higher switching frequencies are possible. The simulation and experimental results obtained for a converter with 48V input and 12V/20A and 5V/10A outputs are discussed.

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来源期刊

2011 INTERNATIONAL CONFERENCE ON RECENT ADVANCEMENTS IN ELECTRICAL, ELECTRONICS AND CONTROL ENGINEERING

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