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| 小功率高频数字控制DC/DC 变换器设计 | |
| 引用本文： | 高艳霞,郭水保,ALLARD Bruno.小功率高频数字控制DC/DC 变换器设计[J].上海大学学报(英文版),2008,12(5):450-456. |
| 作者姓名： | 高艳霞 郭水保 ALLARD Bruno |
| 基金项目： | Project supported by the Power Electronics Science Education Development Program of Delta Environmental ＆ Education Foundation （Grant No.DERO2007014）, and the Scientific Service of the Embassy of France in China （Grant No.K06D20） |
| 摘 要： | This paper models a low-power high-frequency digitally controlled synchronous rectifier （SR） OUCK converter. The converter is a hybrid system with three operation modes. Digital PID controler is used. Key problems such as quantization resolution of digital pulse-width modulation （DPWM） and steady-state limit cycles of digital control switching model power supply （SMPS） are discussed, with corresponding solutions presented. Simulation of a digital control synchronous buck is performed with a fixed-point algorithm. The results show that the described approach enables high-speed dynamic performance. |
| 关 键 词： | 小功率高频 数字控制 DC/DC变换器 设计方法 DPWM |
| 收稿时间： | 2007-07-09 |
| 修稿时间： | 2007-09-25 |
Design of low-power high-frequency digital controlled DC-DC switching power converter |
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| GAO Yan-xia,GUO Shui-bao,LIN-SHI Xue-fang,ALLARD Bruno.Design of low-power high-frequency digital controlled DC-DC switching power converter[J].Journal of Shanghai University(English Edition),2008,12(5):450-456. | |
| Authors: | GAO Yan-xia GUO Shui-bao LIN-SHI Xue-fang ALLARD Bruno |
| Institution: | 1. School of Electromechanical Engineering and Automation, Shanghai University, Shanghai 200072, P. R. China 2. School of Electromechanical Engineering and Automation, Shanghai University, Shanghai 200072, P. R. China;Lab. AMPERE, CNRS UMR 5005, Institut National des Sciences Appliqu e es de Lyon, Villeurbanne 69621, France 3. Lab. AMPERE, CNRS UMR 5005, Institut National des Sciences Appliqu e es de Lyon, Villeurbanne 69621, France |
| Abstract: | This paper models a low-power high-frequency digitally controlled synchronous rectifier (SR) buck converter. The converter is a hybrid system with three operation modes. Digital PID controler is used. Key problems such as quantization resolution of digital pulse-width modulation (DPWM) and steady-state limit cycles of digital control switching model power supply (SMPS) are discussed, with corresponding solutions presented. Simulation of a digital control synchronous buck is performed with a fixed-point algorithm. The results show that the described approach enables high-speed dynamic performance. |
| Keywords: | digital control digital pulse-width modulation (DPWM) limit cycle buck converter |
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