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用于高功率密度DC-DC转换的混合模拟-数字

MAD)变换器

语言:

中文摘要

传统开关电源在开关频率下存在瞬时功率脉动,需大体积滤波器。为提升功率密度,本文提出混合模拟-数字(MAD)DC-DC变换器概念。通过在负载与电源间插入模拟电压分量,使输出电压纹波显著降低,从而实现更高功率密度。

English Abstract

Conventional switched-mode power supplies have intrinsic instantaneous power pulsation at the switching frequency thus require bulky filters. To improve the power density, this paper proposes a concept named the mixed analog-digital (MAD) which can be applied as dc-dc converters. By inserting an analog voltage component between the load and source, the output voltage naturally has much smaller flu...
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SunView 深度解读

该技术通过优化DC-DC变换级的电压纹波特性,有望显著减小光伏逆变器及储能变流器(如PowerTitan、PowerStack系列)中直流侧滤波电容的体积,从而提升整机功率密度。对于阳光电源的组串式逆变器,该方案有助于进一步缩小产品尺寸,降低物料成本。建议研发团队评估MAD拓扑在宽输入电压范围下的效率表现,并考虑将其应用于下一代高功率密度储能PCS的研发中,以增强产品在空间受限场景下的竞争力。