https://scholars.lib.ntu.edu.tw/handle/123456789/637191
標題: | A Time-Domain CCM/DCM Current-Mode Buck Converter with a PI Compensator Incorporating an Infinite Phase Shift Delay Line | 作者: | Chiu, Mao Ling Lo, I. Fang TSUNG-HSIEN LIN |
關鍵字: | infinite phase shift delay line | load regulation | loop compensation | PI compensation | Time-domain control | voltage-controlled delay line | 公開日期: | 1-一月-2023 | 卷: | 2023-September | 來源出版物: | European Solid-State Circuits Conference | 摘要: | This paper presents a current-mode (CM) buck converter which incorporates two control paths realized in time-domain signal processing. The voltage regulation path (VRP) ensures a high accuracy output voltage (VOUT), while the current feed-forward path (CFFP) simplifies the compensator design. A time-domain proportional-integral (PI) compensator is proposed which incorporates an infinite phase shift delay line (IPSDL) and VCO in cascade. The IPSDL allows the converter to support a wide frequency range with better transient performance. Fabricated in a 180-nm CMOS process, the converter can provide a VOUT from 0.35 V to 2.6 V from a 3.3-V input and supports both CCM and DCM operations. The load regulation is 5.26 mV/A. The load-transient settling time is 15.6 μ s for the output current stepping from 1 A to 50 mA, and is 1.8 μ s when transitioning from 50 mA to 1 A. At 1.8-V VOUT, the measured peak efficiency is 95.7%. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/637191 | ISBN: | 9798350304206 | ISSN: | 19308833 | DOI: | 10.1109/ESSCIRC59616.2023.10268745 |
顯示於: | 電機工程學系 |
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