| A fixed frequency fast transient response DC-DC controller for VRM application Chen Mingyang(陈明阳), Zhao Menglian*(赵梦恋), Wu Xiaobo(吴晓波) |
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| 引用本文： | 陈明阳,赵梦恋,吴晓波.A fixed frequency fast transient response DC-DC controller for VRM application Chen Mingyang(陈明阳), Zhao Menglian*(赵梦恋), Wu Xiaobo(吴晓波)[J].半导体学报,2013,34(12):125002-6. |
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| 作者姓名： | 陈明阳 赵梦恋 吴晓波 |
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| 摘 要： | A 2V-10A fast transient response DC-DC buck controller based on fixed frequency hysteresis control is presented. A carefully designed output voltage filter detects the output capacitor current change which helps the controller to respond immediately after load changes. Adaptive hysteresis control guarantees the switching frequency to be the same as the reference frequency by using a CCII-composed circuit and current mirrors. The controller is designed and fabricated in a TSMC 0.35 μm process. Simulation and test results show that this con- troller achieves a 20 μs settling time in one single switching cycle when load current changes from 1 A to the full load condition at 10 A.
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| 关 键 词： | DC-DC控制器 瞬态响应 固定频率 VRM 滞环控制 输出电压 降压控制器 电容电流 |
| 收稿时间： | 5/9/2013 12:00:00 AM |
| 修稿时间： | 7/9/2013 12:00:00 AM |
A fixed-frequency fast transient response DC-DC controller for VRMs |
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| Chen Mingyang,Zhao Menglian and Wu Xiaobo.A fixed-frequency fast transient response DC-DC controller for VRMs[J].Chinese Journal of Semiconductors,2013,34(12):125002-6. |
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| Authors: | Chen Mingyang Zhao Menglian and Wu Xiaobo |
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| Affiliation: | Institute of VLSI Design, Zhejiang University, Hangzhou 310027, China;Institute of VLSI Design, Zhejiang University, Hangzhou 310027, China;Institute of VLSI Design, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | fast response hysteretic control buck |
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| Keywords: | fast response|hysteretic control|buck |
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