A fast transient and under/overshoot suppression DC-DC Buck converter with ACP control

Jing Teng Lin, Jiunn Hung Shiau, Chien-Hung Tsai

研究成果: Conference contribution

摘要

In this paper, a novel state ACP (adaptive current position) is presented, which allows Buck converter to achieve fast load transient response. The PWM (pulse width modulation) and PFM (pulse frequency modulation) modes increase light-load efficiency and maintain good regulation over a wide load range. When the load rapidly changes from light to heavy, ACP can enhance the transient response, to minimize the settling time and suppresses under/overshoot voltage. Unlike other system, the proposed controller can operate without current-sensor. ACP can force the inductor current to catch up with load current quickly. Switch on high-side power MOS a period of time then change to PWM state. By using the information from pseudo current roof, the exact on-time and off-time at different Vin can be calculated. Also, we can speculate the time to execute ACP without current-sensor. Simulation and experimental results demonstrate the superior dynamic response over that of a conventional digital Buck converter.

原文English
主出版物標題Technical Papers of 2014 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2014
發行者IEEE Computer Society
ISBN(列印)9781479927760
DOIs
出版狀態Published - 2014 一月 1
事件2014 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2014 - Hsinchu, Taiwan
持續時間: 2014 四月 282014 四月 30

出版系列

名字Technical Papers of 2014 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2014

Other

Other2014 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2014
國家Taiwan
城市Hsinchu
期間14-04-2814-04-30

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering

指紋 深入研究「A fast transient and under/overshoot suppression DC-DC Buck converter with ACP control」主題。共同形成了獨特的指紋。

引用此