標題: | Low-Dropout Regulators With Adaptive Reference Control and Dynamic Push-Pull Techniques for Enhancing Transient Performance |
作者: | Lin, Chia-Hsiang Chen, Ke-Horng Huang, Hong-Wei 電控工程研究所 Institute of Electrical and Control Engineering |
關鍵字: | Analog ICs;CMOS analog ICs;dc-dc power conversion;MOSFET ICs |
公開日期: | 1-三月-2009 |
摘要: | An adaptive reference control (ARC) technique is proposed for minimizing overshoot/undershoot voltage and settling time of low-dropout regulators. Linear operation provided by the ARC technique can dynamically and smoothly adjust the reference voltage so as to increase the slew rate of error amplifier thus forcing the output voltage back to its steady-state value rapidly. The amount of transient revision is proportional to transient state output voltage variation and load condition. In addition, a dynamic push-pull technique is used to enhance transient response. Experimental results demonstrate that the undershoot voltage, settling time, and load regulation are improved by 31%, 68.5%, and 70%, respectively, when load current changes between 1 and 100 mA. |
URI: | http://dx.doi.org/10.1109/TPEL.2008.2007957 http://hdl.handle.net/11536/7562 |
ISSN: | 0885-8993 |
DOI: | 10.1109/TPEL.2008.2007957 |
期刊: | IEEE TRANSACTIONS ON POWER ELECTRONICS |
Volume: | 24 |
Issue: | 3-4 |
起始頁: | 1016 |
結束頁: | 1022 |
顯示於類別: | 期刊論文 |