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An improved performance of the soft switching buck converter

机译:软开关降压转换器的改进性能

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The paper presents on the improved soft switching buck converter in terms of the zero voltage switching (ZVS) and zero current switching (ZCS) which reduces mainly switching power losses of the main semiconductor compared with the hard switching skill over a wide range of the load variations. The soft switching with zero current turns on so the lagging leg of the main switch is achieved ZVS during turned off time to improve the performance of the converter. Thus, it is far better to use power MOSFET as a very high switching frequency power device due to the natural voltage fed nature of the buck converters so overall efficiency be significant with the proper designing of the power inductor, selection of the active and passive power devices and discontinuous conduction mode (DCM) of the operation.
机译:本文针对零电压开关(ZVS)和零电流开关(ZCS)提出了一种改进的软开关降压转换器,与硬开关技术相比,该开关可以在较大的负载范围内减少主要半导体的开关功率损耗变化。零电流的软开关导通,因此在关断时间内可实现主开关的滞后脚ZVS,以改善转换器的性能。因此,由于降压转换器的自然电压馈送特性,最好将功率MOSFET用作非常高的开关频率功率器件,因此,通过适当设计功率电感器,选择有功功率和无功功率,总体效率非常重要。器件和不连续导通模式(DCM)的操作。

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