A 94.3 % Peak Power Efficiency Time-Based Buck Converter Using Pulse-Phase-Shift Modes with An Intrinsic Window for Transient Enhancement

Tsung Wen Sun*, Chu En Hsia, Tsung Heng Tsai, Chia Chan Chang

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

This paper proposes a time-domain controlled buck converter with fast transient response. The dual-mode control consisting of pulse-width modulation (PWM) and pulse phase shift-pulse train (PPS-PT) modes is utilized to suppress the voltage ripples during the steady state and enhance the transitions between the light and heavy load, respectively. The edge-pursuit comparator (EPC) is adopted to detect the voltage difference and decide the operation mode when the load varies. Compared with conventional hysteretic window control, lower power consumption, and better transient response are achieved. Measurement results show that when the load varies from 50 mA to 450 mA, the recovery time is 2.5 μs and the undershoot is 100 mV. The overall peak power efficiency is 94.3 % and a FoM of 1.68 mA∗%/μs∗mV is accomplished.

原文English
主出版物標題Proceedings - International SoC Design Conference 2023, ISOCC 2023
發行者Institute of Electrical and Electronics Engineers Inc.
頁面17-18
頁數2
ISBN(電子)9798350327038
DOIs
出版狀態Published - 2023
事件20th International SoC Design Conference, ISOCC 2023 - Jeju, 韓國
持續時間: 25 10月 202328 10月 2023

出版系列

名字Proceedings - International SoC Design Conference 2023, ISOCC 2023

Conference

Conference20th International SoC Design Conference, ISOCC 2023
國家/地區韓國
城市Jeju
期間25/10/2328/10/23

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