標題: | An 82.9%-Efficiency Triple-Output Battery Management Unit for Implantable Neuron Stimulator in 180-nm Standard CMOS |
作者: | Liu, Chi-Wei Chen, Yi-Lun Liao, Pei-Chun Lin, Shiau-Pin Wang, Ting-Wei Chung, Ming-Jie Chen, Po-Hung Ker, Ming-Dou Wu, Chung-Yu 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
關鍵字: | High voltage generator;BMU;buck converter;charge pump;overstress;transistors stacking;soft start-up |
公開日期: | 1-五月-2019 |
摘要: | This brief presents a high-efficiency battery management unit combining a single-inductor dual-output (SIDO) buck converter with two charge pumps (CPs) to provide three voltage levels (6 V, -6 V, and 2 V) for neuron stimulators in implantable medical devices. The stacked power stage in the buck converter mitigates the voltage stress issue in the power stage to manage 3.2-4.8 V battery voltage. By cascading a buck converter and CPs, the voltage across the CP power stage is reduced to generate 6 V and -6 V high voltage outputs without using high voltage devices. As a result, the proposed battery management could provide 6 V, -6 V, and 2 V output voltages from 3.2 to 4.8 V input voltage using a 180-nm standard CMOS process. The measurement results demonstrate that the proposed battery management achieved a peak efficiency of 82.9% with an available input voltage of 3.2-4.8 V. |
URI: | http://dx.doi.org/10.1109/TCSII.2019.2909813 http://hdl.handle.net/11536/152336 |
ISSN: | 1549-7747 |
DOI: | 10.1109/TCSII.2019.2909813 |
期刊: | IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS |
Volume: | 66 |
Issue: | 5 |
起始頁: | 788 |
結束頁: | 792 |
顯示於類別: | 期刊論文 |