一种 33V 至 1V 无纹波降压转换器,具有反向交流电流复制电路和低于 0.5% 的输出纹波,适用于 5G 低地球轨道应用

IF 2.2 Q3 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE IEEE Solid-State Circuits Letters Pub Date : 2024-06-05 DOI:10.1109/LSSC.2024.3410034
Yi-Hsiang Kao;Jie-Lin Wu;Chih-Cherng Liao;Hui-Hsuan Chang;Wei-Cheng Huang;Hsing-Yen Tsai;Rong-Bin Guo;Ke-Horng Chen;Kuo-Lin Zeng;Ying-Hsi Lin;Shian-Ru Lin;Tsung-Yen Tsai
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引用次数: 0

摘要

所提出的无纹波降压转换器(RLBC)采用带有反相交流电流复制(IACCR)电路的两相拓扑结构,以降低输出电压纹波,从而满足 5G 新无线电(5G NR)低地球轨道(LEO)应用对误差矢量幅度(EVM)的要求。辅助电感 (AI) 电路模拟电感电流,以避免使用额外的电感器。纹波最小化(RM)电路通过同步功率 MOSFET 的开关时刻,进一步降低输出纹波。因此,拟议的 RLBC 实现了 5G NR LEO 标准,EVM 为 -28.85dB。
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A 33V to 1V Ripple-Less Buck Converter With the Inverted AC Current Replica Circuit and Sub-0.5% Output Ripple for 5G Low Earth Orbit Application
The proposed ripple-less buck converter (RLBC) uses a two-phase topology with an inverted ac current replica (IACCR) circuit to reduce output voltage ripple to meet the error vector magnitude (EVM) requirement of 5G new radio (5G NR) low earth orbit (LEO) application. Assistance inductance (AI) circuit emulates inductor current to avoid using extra inductors. Ripple minimization (RM) circuit further reduces output ripple by synchronizing the switching moment of power MOSFETs. Therefore, the proposed RLBC achieves 5G NR LEO standards with an EVM of -28.85dB.
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来源期刊
IEEE Solid-State Circuits Letters
IEEE Solid-State Circuits Letters Engineering-Electrical and Electronic Engineering
CiteScore
4.30
自引率
3.70%
发文量
52
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