A Single-Inductor Dual-Output DC-DC Converter with Dual-Mode Control

Yun Hsuan Hsu, Dao Han Yao, Po-Hung Chen

研究成果: Conference contribution同行評審

摘要

This paper demonstrates a single-inductor dual-output (SIDO) buck converter, which is developed for implantable medical devices. The dual-mode operation, which combines pulse-skip modulation (PSM) and pulse-width modulation (PWM), is employed to regulate outputs under light load and heavy load conditions, respectively. The converter provides two output voltages: VOUT1 (2.5-3V) for charge pumps and VOUT2 (2V) for digital circuits. With the start-up circuits, the SIDO buck converter can act as self-start-up DC-DC buck converter. To avoid voltage stress issue under 3.2-4.2V battery operation in 180nm standard (CMOS) process, the stacked power stage is used. The proposed level shifter includes an additional level restorer to avoid a misjudgment issue during start-up period. The simulation results demonstrate that the converter achieves peak efficiency of 94.5% with PSM control, and it achieves peak efficiency of 89.1% with PWM control.

原文English
主出版物標題2nd International Conference on Electrical, Communication and Computer Engineering, ICECCE 2020
發行者Institute of Electrical and Electronics Engineers Inc.
頁數4
ISBN(電子)9781728171166
DOIs
出版狀態Published - 6月 2020
事件2nd International Conference on Electrical, Communication and Computer Engineering, ICECCE 2020 - Istanbul, Turkey
持續時間: 12 6月 202013 6月 2020

出版系列

名字2nd International Conference on Electrical, Communication and Computer Engineering, ICECCE 2020

Conference

Conference2nd International Conference on Electrical, Communication and Computer Engineering, ICECCE 2020
國家/地區Turkey
城市Istanbul
期間12/06/2013/06/20

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