电工技术学报2016，Vol.31Issue(18)：100-107,8.
开关DC-DC变换器电容电流脉冲序列控制
Capacitor Current Pulse Train Control for Switching DC-DC Converter
摘要
Abstract
This paper proposes capacitor current pulse train (CC-PT) control technique for buck converter. Different from the conventional pulse train (PT) control technique, the high and low power control pulses of CC-PT control which have the same frequency but different duty cycles are generated, by sensing the capacitor current and comparing with two different control currents. The control principle and character of CC-PT-controlled Buck converter operating in both discontinuous condition mode (DCM) and continuous conduction mode (CCM) are presented. The theoretical analysis shows that taken the capacitor current as the current inner loop, the inductor current ripple is limited and the low-frequency oscillation phenomenon can be eliminate effectively. The experimental results show that CC-PT control benefits from fast transient response, furthermore, the steady-state performance of CC-PT-controlled buck converter is better than that of PT-controlled buck converter.关键词
电容电流/脉冲序列/电流连续模式/Buck变换器Key words
Capacitor current/pulse train/continuous current mode/Buck converter分类
信息技术与安全科学引用本文复制引用
许丽君,沙金,许多,钟曙..开关DC-DC变换器电容电流脉冲序列控制[J].电工技术学报,2016,31(18):100-107,8.基金项目
国家自然科学基金（51177140）和中央高校基本科研业务费专项资金（2682013ZT20）资助项目。 （）
