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