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

fYear

2014

fDate

28-30 April 2014

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Design, Automation and Test (VLSI-DAT), 2014 International Symposium on

Conference_Location

Hsinchu

Type

conf

DOI

10.1109/VLSI-DAT.2014.6834888

Filename

6834888