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A Novel Application of Zero-Current-Switching Quasiresonant Buck Converter for Battery Chargers

机译:零电流开关准谐振降压转换器在电池充电器中的新应用

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摘要

The main purpose of this paper is to develop a novel application of a resonant switch converter for battery chargers. A zero-current-switching (ZCS) converter with a quasiresonant converter (QRC) was used as the main structure. The proposed ZCS dc-dc battery charger has a straightforward structure, low cost, easy control, and high efficiency. The operating principles and design procedure of the proposed charger are thoroughly analyzed. The optimal values of the resonant components are computed by applying the characteristic curve and electric functions derived from the circuit configuration. Experiments were conducted using lead-acid batteries. The optimal parameters of the resonance components were determined using the load characteristic curve diagrams. These values enable the battery charger to turn on and off at zero current, resulting in a reduction of switching losses. The results of the experiments show that when compared with the traditional pulse-width-modulation (PWM) converter for a battery charger, the buck converter with a zero- current-switching quasiresonant converter can lower the temperature of the activepower switch.
机译:本文的主要目的是开发一种用于电池充电器的谐振开关转换器的新型应用。主要结构采用带有准谐振转换器(QRC)的零电流开关(ZCS)转换器。提出的ZCS dc-dc电池充电器具有结构简单,成本低,易于控制和高效率的特点。拟议的充电器的工作原理和设计程序进行了全面分析。通过应用特性曲线和从电路配置中导出的电函数,可以计算出谐振分量的最佳值。实验是使用铅酸电池进行的。谐振分量的最佳参数是使用负载特性曲线图确定的。这些值使电池充电器能够以零电流开启和关闭,从而降低了开关损耗。实验结果表明,与用于电池充电器的传统脉宽调制(PWM)转换器相比,具有零电流开关准谐振器的降压转换器可以降低有功功率开关的温度。

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  • 来源
    《Mathematical Problems in Engineering》 |2011年第3期|p.1-16|共16页
  • 作者

    Kuo-Kuang Chen;

  • 作者单位

    Department of Electrical Engineering, Far East University, Tainan city 744, Taiwan;

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  • 原文格式 PDF
  • 正文语种 eng
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