@inproceedings{1961597f6e09418caf671b2d2e8a0e41,
title = "AOT-controlled dual-mode AVP buck regulator with AEAF mechanism",
abstract = "A novel adaptive voltage positioning (AVP) buck regulator using adaptive on-time (AOT) control targeted for applications with low-ESR output capacitors is proposed. In this work, AOT control is adapted to keep the system's switching frequency quasi-fixed or independent of the input supply voltage and the AVP mechanism is realized without the need to use conventional error amplifier compensator or extra current-sensing circuit. For ensuring the system's switching frequency not entering the range of acoustic frequency at light load, an AEAF (avoid entering acoustic frequency) circuit is also proposed. For comparison purpose, the implemented buck regulator can be set to operate under AVP or non-AVP mode. This work has been fabricated and verified with a standard 0.18μm CMOS technology. Experimental results show excellent transient recovery time of 4μs (under AVP mode), ±0.11\% switching frequency variation (for the specified input voltage range), and 91\% peak conversion efficiency.",
author = "Li, \{Hsin Lun\} and Pao, \{Chia Cheng\} and Chen, \{Bo Ming\} and Tsai, \{Chien Hung\}",
year = "2013",
month = nov,
day = "7",
doi = "10.1109/CICC.2013.6658538",
language = "English",
isbn = "9781467361460",
series = "Proceedings of the Custom Integrated Circuits Conference",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "Proceedings of the IEEE 2013 Custom Integrated Circuits Conference, CICC 2013",
address = "United States",
note = "35th Annual Custom Integrated Circuits Conference - The Showcase for Circuit Design in the Heart of Silicon Valley, CICC 2013 ; Conference date: 22-09-2013 Through 25-09-2013",
}