A MOSFET only, step-up DC-DC micro power converter, for solar energy harvesting applications

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

In this paper, a step-up micro power converter for solar energy harvesting applications is presented. The circuit is based on a switched-capacitor voltage doubler architecture with MOSFET capacitors, which results in an area approximately eight times smaller than using MiM capacitors for the 0.13ホシm CMOS technology. In order to compensate for the loss of efficiency, due to the larger parasitic capacitances, a charge reutilization scheme is employed. The circuit uses a phase controller, designed specifically to work with a solar cell, in order to regulate the output voltage to 1.2 V. Electrical simulations of the circuit, together with an equivalent electrical model of a solar cell, show that the circuit can deliver a power of 536.1 ホシW to the load, while drawing a power of 799.8 ホシW from the solar cell, corresponding to a maximum efficiency of 67%.
Original languageUnknown
Title of host publication-
Pages499-504
Publication statusPublished - 1 Jan 2010
Event17th International Conference Mixed Design of Integrated Circuits and Systems (MIXDES), 2010 -
Duration: 1 Jan 2010 → …

Conference

Conference17th International Conference Mixed Design of Integrated Circuits and Systems (MIXDES), 2010
Period1/01/10 → …

Cite this