A Flying-Inductor Hybrid DC–DC Converter for 1-Cell and 2-Cell Smart-Cable Battery Chargers
A Flying-Inductor Hybrid DC–DC Converter for 1-Cell and 2-Cell Smart-Cable Battery Chargers
复制标题
适用于 1 节和 2 节智能电缆电池充电器的飞翼电感器混合 DC-DC 转换器
DOI：
10.1109/jssc.2019.2944837
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发表时间：
2019
影响因子：
5.4
通讯作者：
Hanh
中科院分区：
文献类型：
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作者：
Casey Hardy;Y. Ramadass;K. Scoones;Hanh
本文提出了一种新的降压混合变换器拓扑结构，该拓扑结构使用输入飞电感和开关电容网络来产生适合于对单芯（1 S）或双芯（2S）电池充电的输出电压。所提出的拓扑将电感器从高电流输出重新定位到低电流输入，同时提供降压转换比，该降压转换比利用通用串行总线C型（USB-C）功率输送（PD）的较高电压设置。此外，将电感器移动到输入允许利用USB电缆的寄生电感来代替分立电感器，即智能电缆架构，从而消除对板上磁性元件的需要并降低板上功耗。该转换器采用7.37 mm 2的130 nm BCD工艺实现，从9V输入提供3-4.2 V和6-8.4 V范围的两个输出。采用1 $\mu \text{H}$的分立电感，原型分别实现了12.2W和31.9W的峰值功率和94.3%和97.4%的峰值效率为每个输出。该原型还在智能电缆架构中进行了演示，将板上功耗限制为630 mW，同时在第一输出端提供7.2W，或在第二输出端提供350 mW，同时提供14.4W。同时提供数据和电力传输以及电磁干扰（EMI）测试，以支持集成到智能电缆架构中的可行性。
This article presents a new step-down hybrid converter topology that uses an input flying inductor and a switched-capacitor network to generate output voltages suitable for charging 1-cell (1S) or 2-cell (2S) batteries. The proposed topology relocates the inductor from the high-current output to the low-current input, while providing step-down conversion ratios that take advantage of the higher voltage settings of Universal Serial Bus Type-C (USB-C) power delivery (PD). Moreover, moving the inductor to the input allows the parasitic inductance of a USB cable to be utilized in place of a discrete inductor, that is, a smart-cable architecture, eliminating the need for on-board magnetics and reducing on-board power dissipation. The converter is implemented in 7.37 mm2 of a 130-nm BCD process and provides two outputs with ranges of 3–4.2 V and 6–8.4 V from a 9V input. With a 1 $\mu \text{H}$ discrete inductor, the prototype achieves peak powers of 12.2W and 31.9W and peak efficiencies of 94.3% and 97.4% for each output, respectively. The prototype is also demonstrated in a smart-cable architecture to limit on-board dissipation to 630 mW while delivering 7.2W at the first output or 350mW while delivering 14.4W at the second output. Simultaneous data and power transfer and electromagnetic interference (EMI) tests are provided to support the feasibility of integration into a smart-cable architecture.
8.4%20Fully%20Integrated%20Buck%20Converter%20with%2078%%20Efficiency%20at%20365mW%20Output%20Power%20Enabled%20by%20Switched-Inductor%20Capacitor%20Topology%20and%20Inductor%20Current%20Reduction%20技术
DOI：
10.1109/isscc.2019.8662530
发表时间：
2019
期刊：
2019 IEEE International Solid- State Circuits Conference - (ISSCC
影响因子：
--
作者：
Tang, Nghia;Nguyen, Bai;Tang, Yangyang;Hong, Wookpyo;Zhou, Zhiyuan;Heo, Deukhyoun
通讯作者：
Heo, Deukhyoun
A%20120V-to-1.8V%2091.5%-效率%2036-W%20双电感%20Hybrid%20转换器%20with%20Natural%20软充电%20Operations%20for%20Direct%20Extreme%20Conversion%20比率
DOI：
10.1109/ecce.2018.8557854
发表时间：
2018
期刊：
2018 IEEE Energy Conversion Congress and Exposition (ECCE
影响因子：
--
作者：
Das, Ratul;Seo, Gab-Su;Le, Hanh-Phuc
通讯作者：
Le, Hanh-Phuc