標題: Batteryless 275mV Startup Single-Cell Photovoltaic Energy Harvesting System for Alleviating Shading Effect
作者: Huang, Chao-Jen
Su, Yi-Ping
Chen, Ke-Horng
Huang, Li-Ren
Chu, Fang-Chih
Chu, Yuan-Hua
Wey, Chin-Long
電控工程研究所
Institute of Electrical and Control Engineering
關鍵字: photovoltaic (PV) energy harvesting;single-cell (SC) PV;buck-boost (BB) converter;low voltage startup (LVS)
公開日期: 1-Jan-2013
摘要: without any batteries, a low input voltage converter is presented for a single-cell (SC) photovoltaic (PV) energy harvesting to alleviate the energy degradation due to shading effect. The proposed low voltage startup (LVS) circuit with low input voltage of 275 mV and less than 840 ms startup time achieves high voltage conversion ratio to supply a high accuracy bandgap reference. Experimental results show the maximum power throughput is up to 6 mW and the quiescent power is less than 650 mu W with integrated two buck-boost converters and two boost converters. The peak efficiency of the boost converter can be up to 75.8% for ultra-low voltage hearing aid systems.
URI: http://hdl.handle.net/11536/150624
期刊: PROCEEDINGS OF THE 2013 IEEE ASIAN SOLID-STATE CIRCUITS CONFERENCE (A-SSCC)
起始頁: 265
結束頁: 268
Appears in Collections:Conferences Paper