標題: | Dual-Source Energy-Harvesting Interface With Cycle-by-Cycle Source Tracking and Adaptive Peak-Inductor-Current Control |
作者: | Liu, Chi-Wei Lee, Hui-Hsuan Liao, Pei-Chun Chen, Yi-Lun Chung, Ming-Jie Chen, Po-Hung 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
關鍵字: | Adaptive peak-inductor-current (APIC) control;buck-boost converter;cycle-by-cycle source tracking (CCST);dc-dc converter;dual source;energy harvesting |
公開日期: | 1-十月-2018 |
摘要: | In this paper, we present a single-inductor triple-input-triple-output (SITITO) buck-boost converter in a 0.18-mu m CMOS process for dual-source energy harvesting. The converter operates in the single-source mode, dual-source mode (DSM), and backup mode automatically by detecting the input and output conditions. Converter operation in the proposed DSM enables extraction of power from both a photovoltaic cell and a thermoelectric generator in one switching cycle for efficient power extraction. The cycle-by-cycle source-tracking approach selects the appropriate input source according to the maximum power point of the energy transducers. The adaptive on-time circuit with the proposed adaptive peak-inductor-current (APIC) control adjusts the on-time of power transistors to obtain high conversion efficiency under different input voltages. The experimental results demonstrate that the proposed SITITO converter has a peak efficiency of 84.4%. When compared with the conventional constant peak-inductor-current control, an efficiency improvement of 11% is obtained via the proposed APIC control. |
URI: | http://dx.doi.org/10.1109/JSSC.2018.2844358 http://hdl.handle.net/11536/148234 |
ISSN: | 0018-9200 |
DOI: | 10.1109/JSSC.2018.2844358 |
期刊: | IEEE JOURNAL OF SOLID-STATE CIRCUITS |
Volume: | 53 |
起始頁: | 2741 |
結束頁: | 2750 |
顯示於類別: | 期刊論文 |