Current-Voltage-Dual-Mode DC-DC Buck Converter with Adaptive Clock Control

You Te Chiu, Yu Hsuan Liu, Ming Rui Tsai, Chung Chih Hung

研究成果: Conference contribution同行評審

摘要

This paper presents a novel high-efficiency and fast-transient current-voltage-dual-mode (CVDM) dc-dc buck converter using adaptive clock controller (ACC). The proposed CVDM control can stably switch the control method between current mode and voltage mode to improve the performance according to different situations. By using the ACC technique, the circuit can dynamically and smoothly adjust the switching frequency during the transient response to improve the undershoot, overshoot voltage, and recovery time. In this work, only an output inductor, capacitor, and feedback resistors are outside the system on chip (SoC). The transient recovery time and undershoot voltage are less than 5μs and 60mV, respectively, for the load current change from 50mA to 500mA. The maximum conversion efficiency is 95% at 100mA load current. Above 90% conversion efficiency can be achieved for load current from 30mA to 600mA. With the proposed techniques, the performance of the dc-dc converter is improved significantly.

原文English
主出版物標題2019 IEEE 62nd International Midwest Symposium on Circuits and Systems, MWSCAS 2019
發行者Institute of Electrical and Electronics Engineers Inc.
頁面738-741
頁數4
ISBN(電子)9781728127880
DOIs
出版狀態Published - 8月 2019
事件62nd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2019 - Dallas, United States
持續時間: 4 8月 20197 8月 2019

出版系列

名字Midwest Symposium on Circuits and Systems
2019-August
ISSN(列印)1548-3746

Conference

Conference62nd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2019
國家/地區United States
城市Dallas
期間4/08/197/08/19

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