A High-Efficiency Fast-Transient-Response Buck Converter with Analog-Voltage-Dynamic-Estimation Techniques

被引：24

作者：

Hwang, Yuh-Shyan ^{[1
]}

Liu, An ^{[1
,2
]}

Chang, Yuan-Bo ^{[1
]}

Chen, Jiann-Jong ^{[1
]}

机构：

[1] Natl Taipei Univ Technol, Dept Elect Engn, Taipei 10608, Taiwan

[2] St Johns Univ, Dept Comp Sci & Informat Engn, New Taipei City 25135, Taiwan

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2015年 / 30卷 / 07期

关键词：

Buck converter; derivative output ripple voltage (DORV); pulsewidth modulation (PWM); transient response; ON-TIME CONTROL; RIPPLE-BASED CONTROL; REDUCTION;

D O I：

10.1109/TPEL.2014.2345459

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A fast-transient-response buck converter utilizing analog-voltage-dynamic-estimation (AVDE) techniques is proposed in this paper. The responses of the proposed buck converter are very fast when load changes between heavy load and light load. The switching frequency of the proposed buck converter is 1 MHz for nominal 3.3 V input and 1.0-2.5 V output range application. Experimental results prove that the proposed scheme improves the transient response to within 2 mu s and that its maximum power efficiency can be up to 95%. The maximum load current is 300 mA. The proposed AVDE buck converter has been fabricated with a commercial 0.35 mu m CMOS 2P4M process, the total chip area is about 1.5 mm x 1.5 mm, including PADs.

引用

页码：3720 / 3730

页数：11

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