Title :
A single inductor DIDO DC-DC converter for solar energy harvesting applications using band-band control
Author :
Shao, Hui ; Tsui, Chi-ying ; Ki, Wing-Hung
Author_Institution :
Solomon Systech, Hong Kong, China
Abstract :
A single inductor dual input dual output (SIDIDO) DC-DC converter is proposed for solar energy harvesting applications. The converter supports hybrid power supplies from both the photovoltaic (PV) cells and the rechargeable battery. The proposed DC-DC converter provides a regulated output voltage to power the load as well as clamps the input voltage from the PV cells to the maximum power point (MPP) value so as to extract the maximum power from the PV cells. At the same time, one of the dual outputs is used to charge up a rechargeable battery when the PV cells output power is larger than the load. A simple bandband control is proposed for controlling the power flow between different sources and destination under different power operation modes. Extensive simulations were carried out to verify the operation and demonstrate the power transfer efficiency of the proposed DC-DC converter.
Keywords :
DC-DC power convertors; energy harvesting; flow control; photovoltaic cells; power control; power generation control; secondary cells; solar power; band-band control; maximum power point value; photovoltaic cells; power flow control; power transfer efficiency; rechargeable battery; single inductor dual input dual output DC-DC converter; solar energy harvesting; Batteries; Converters; Inductors; Power generation; Power transistors; Switches; Voltage control; DC-DC converter; MPPT; PV cells; band-band control; dual-input-dual-output; energy harvesting; single inductor;
Conference_Titel :
VLSI System on Chip Conference (VLSI-SoC), 2010 18th IEEE/IFIP
Conference_Location :
Madrid
Print_ISBN :
978-1-4244-6469-2
DOI :
10.1109/VLSISOC.2010.5642603
