Interleaving Energy-Conservation Mode (IECM) Control in Single-Inductor Dual-Output (SIDO) Step-Down Converters With 91 Peak Efficiency

Lee Y.-H.; Yang Y.-Y.; Wang S.-J.Chen K.-H.Lin Y.-H.Chen Y.-K.Huang C.-C.

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Interleaving Energy-Conservation Mode (IECM) Control in Single-Inductor Dual-Output (SIDO) Step-Down Converters With 91 Peak Efficiency

机译：Interleaving Energy-Conservation Mode (IECM) Control in Single-Inductor Dual-Output (SIDO) Step-Down Converters With 91 Peak Efficiency

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摘要

The proposed single-inductor dual-output (SIDO) converter with interleaving energy-conservation mode (IECM) control is designed using 65 nm technology to power the ultra-wide band (UWB) system. The energy-conservation mode (ECM) control generates four different energy delivery paths for dual buck outputs with only one inductor. In addition, the superposition technique is used to achieve a minimized inductor current level. The average inductor current is equal to the summation of two output loads. Moreover, the IECM control activates the interleaving operation through the current interleaving mechanism to provide large driving capability as well as to reduce the output voltage ripple. As a result, 91% peak efficiency is derived and the output voltage ripple appears notably minimized by 50% using current interleaving at heavy load. The test chip occupies 1.44 mm$^{2}$ in 65 nm CMOS and integrates with a three-dimensional (3-D) architecture for inductor integration.

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来源
《IEEE Journal of Solid-State Circuits》 |2011年第4期|904-915|共12页
作者
Lee Y.-H.; Yang Y.-Y.; Wang S.-J.Chen K.-H.Lin Y.-H.Chen Y.-K.Huang C.-C.;
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作者单位

Institute of Electrical Control Engineering, National Chiao Tung University, Hsinchu, Taiwan;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
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关键词
Current interleaving; DC-DC converter; energy delivery path; output voltage ripple; power conversion efficiency; single-inductor dual-output (SIDO) converter; ultra-wide band (UWB) system;

Interleaving Energy-Conservation Mode (IECM) Control in Single-Inductor Dual-Output (SIDO) Step-Down Converters With 91 Peak Efficiency

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