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基于移相全桥的串联升压式部分功率DC-DC变换器

, PP. 128-135

Keywords: 串联,升压,部分功率,移相全桥

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Abstract:

首先详细分析基于移相全桥的串联升压式部分功率DC-DC变换器的工作原理和特性,与传统Boost电路相比,该变换器具有开关管和二极管电气应力低、零电压开关以及输入输出电流均连续等优点;其次,对变换器建立小信号模型,由于不存在右半平面零点,因此避免了Boost电路动态响应慢的缺点;最后,通过1.6kW的原理样机实验验证了理论分析的可靠性。

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