Title :
An integrated boost converter with maximum power point tracking for solar photovoltaic energy harvesting
Author :
Sung-Yao Wang ; Hung-Hsien Wu ; Chia-Ling Wei
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
Abstract :
An integrated boost converter with maximum power point tracking for solar photovoltaic (PV) energy harvesting has been proposed. The maximum power point tracking (MPPT) function is realized with analog circuits, instead of using a microprocessor. In the proposed chip, the output power of the PV modules is controlled by modulating the on-time of the boost converter. The chip was designed and fabricated by using TSMC 0.18 μm 1P6M mixed-signal CMOS process. The total chip area is 1.08×1.25 mm2, which is much smaller than that with a microprocessor. The measured maximum tracking efficiency is 90%.
Keywords :
CMOS analogue integrated circuits; energy harvesting; maximum power point trackers; solar cells; MPPT function; PV module; TSMC mixed signal CMOS process; analog circuit; integrated boost converter on-time modulation; maximum power point tracking; solar photovoltaic energy harvesting; Capacitors; Clocks; Maximum power point trackers; Photovoltaic systems; Semiconductor device measurement;
Conference_Titel :
VLSI Design, Automation and Test (VLSI-DAT), 2014 International Symposium on
Conference_Location :
Hsinchu
DOI :
10.1109/VLSI-DAT.2014.6834888
