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Title: A high efficiency synchronous buck converter with adaptive dead-time control
Authors: Zhou, Mi
Low, Qiongwei
Siek, Liter
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2017
Source: Zhou, M., Low, Q. & Siek, L. (2017). A high efficiency synchronous buck converter with adaptive dead-time control. 2016 International Symposium on Integrated Circuits (ISIC), 1-4.
Project: 11235100003
Abstract: An adaptive inverter-based dead-time controller for synchronous DC-DC converter is proposed. With this controller, the switching time is precisely controlled and thus simultaneously eliminates the power losses caused by body-diode conduction, power-stage shoot-through current and inductor reverse current. A pair of inverters are used to replace the high speed comparators in this controller for even faster comparison. In addition, the proposed two-step (coarse and fine tuning) dynamic delay generator in this controller helps to achieve more accurate switching time with wider dead-time correction range. The controller can be incorporated into different converter topologies with a wide load range. In this paper, a voltage-mode buck converter with the proposed adaptive dead-time controller has been designed using 0.18 μm CMOS process. Simulation results show precisely controlled switching time under different loading conditions, and a 96% peak conversion efficiency can be achieved with the proposed technique.
ISBN: 9781467390194
DOI: 10.1109/ISICIR.2016.7829749
Rights: © 2016 IEEE. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EEE Conference Papers

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