Maximum Power Point Tracking Controller IC Based on Ripple Correlation Control Algorithm

A 5V analog maximum power point tracking (MPPT) controller integrated circuit (IC) based on ripple correlation control was presented in this study to achieve the maximum power from the photovoltaic array or solar panel under partial shading during the first 72 hours following a disaster when power interruptions and inaccessibility to light may be expected. The IC was implemented in TSMC 0.25 micron 2P4M 5V mixed-signal CMOS technology. The simulation results showed that at 1000W/m(2) solar irradiance and 25 degrees Celsius temperature, the tracking efficiency is about 97.42%.