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首页> 外文期刊>IEEE Transactions on Industrial Electronics >Analysis and Design of an LCL-T Resonant Converter as a Constant-Current Power Supply
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Analysis and Design of an LCL-T Resonant Converter as a Constant-Current Power Supply

机译：LCL-T谐振转换器作为恒流电源的分析和设计

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摘要

An LCL-T resonant converter (LCL-T RC) is shown to behave as a current source when operated at resonant frequency. A detailed analysis of the LCL-T RC for this property is presented. Closed-form expressions for converter gain, component stresses, and the condition for converter design optimized for minimum size of resonant network is derived. A design procedure is illustrated with a prototype 200-W 20-A current-source power supply and experimental results are presented. The LCL-T RC as a current source offers many advantages such as easy parallel operation and low circulating currents at light load. Additionally, with appropriate phase shift in paralleled modules, the peak-peak ripple in output current is reduced and the ripple frequency is increased, reducing filtering requirements. The leakage inductance of a transformer can be advantageously integrated into the resonant network. These merits make the topology applicable in various applications such as magnet power supply, capacitor charging power supply, laser diode drivers, etc.
机译：LCL-T谐振转换器（LCL-T RC）在谐振频率下工作时表现为电流源。对此属性的LCL-T RC进行了详细分析。得出了针对转换器增益，组件应力以及针对谐振网络最小尺寸而优化的转换器设计条件的闭式表达式。用原型200W 20A电流源电源说明了设计过程，并给出了实验结果。 LCL-T RC作为电流源具有许多优势，例如易于并联运行以及轻载时的低循环电流。此外，通过在并行模块中进行适当的相移，可减少输出电流的峰峰值纹波，并增加纹波频率，从而降低了滤波要求。变压器的漏感可以有利地集成到谐振网络中。这些优点使该拓扑可适用于各种应用，例如磁铁电源，电容器充电电源，激光二极管驱动器等。

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